Screw dollar coins, go to Canada for a week, find yourself lugging 12 of them around, they are heavy as hell, make noise, and do NOT make good stripper tips.
Congratulations, you are causing more headaches for other people than you know.
What you are basically doing is being a giant auto responder, google "why autoresponders are bad" for some reading material.
This is one of those anti spam solutions that may work great for you, but causes massive headaches for those around you. Heaven forbid a person get joe-jobbed and you be the recipient. I'll get bounce notices for all the invalid addresses sent to your domain, and a challenge response from all the valid ones. Bog down my mail server even more than it is already with your junk.
Do the net a favor, and start obeying standards. They exist for a reason, I am surprised all the noise you create hasn't got your mail server listed in a few RBL's.
Had a friend who had a box colo'd for free at a fairly run down ISP. It was due to some contractual obligation they had to live up to, so they were not happy about it. Was supposed to have a 10 mbit connection to the switch, and pretty much unmetered out over the backbone, but it never saw more than 2 mbit. Turns out, the ISP put an extra long ethernet line place, 500 feet of signal killing goodness. Just to make his service suck, in a way not easy to see unless you pulled up the raised floor, and noticed that all that wire was in fact, one single wire, going back, and forth, and back and forth.
Another friend has the dilbert boss, decided that the router _needs_ to be at one end of the building, far away from the office. A distance of 350 yards, add even more when you take into account the fact that the wiring goes from the ground floor at one end, up above the second floor, spans the building, and comes back down to the ground. Then, he decides that 10 base T is too slow, and he demands gigE. My friend tries explaining to him why all of this is nuts of course, but the man never listens, and says, "just buy a bunch of repeaters." So, this gigE run of nearly 400 yards, is daisy chained together, every 100 yards or so, by a 4 port gigE switch. Most of them live up in the drop ceiling above the second floor, and have some ludicrous power lines run to them. Store and forward nightmare. Boss is currently pissed because it is slow, and because the gigE switches didn't make his 3 mbit cable modem go any faster.
I'm glad to RTFA and see people like Eugenia or Steph the Geek not on the list,
Thank you! I met Steph the Geek a few years ago at a con, and got stuck sitting next to her in a car ride to a restaurant with about 12 other geeks. Thank god I was the DD for the ride back, and she was much further away from me for the rest of the time. I'd never even heard of her before, but I found out very quickly she is hardly a geek at all, she is a cam whore who knows html and javascript. She didn't seem to have much of a brain on her shoulders, but that didn't seem to bother any of the geniuses I was hanging around from dropping all dignity and going gah gah over her. All the geniuses I might add, who constantly claim they adore smart women, then flirt with the dumb bimbo.
Thank you, I thought I was the only person who failed to see the geek in Steph the Geek.
I think this is well illustrated in the bullshit questions I get about error messages. People see anything out of the norm, on a computer, or not, and automatically assume that it is beyond their comprehension. I get dozens of calls each week, "Hi, I had an error, is there something wrong with the server?"
For one thing, what is "the server"? What do you mean, were you loading a web page, and a message popped up? Were you trying to check your email? Help me out here. More often than not, I get a "well, the server is down isn't it?" response, to which, I cry. Heaven forbid they read the error message and let me know what it said, but people don't like to read.
Then we get the people who get the obvious error messages, but are either too stupid, or too convinced of their own stupidity to comprehend them, and years of doing this make me believe the latter are usually right. This from yesterday's support mail:
The woman was pissed because her message did not grow through, and she demanded that I fix it right away. Telling her that I couldn't change the maximum message size that Juno accepts was not as hard as you might think, and once she realized that the error message she had sent me, already said everything I told her..... I hope she felt like a dumbass for a moment. No, I do not think SMTP errors are too hard to understand, they are very english like, and very descriptive. Ever see the ones that say, "I have not succeeded in sending your letter for four hours, but I am still trying, this is not an error, just a warning, please don't send your message again."? Yeah, we get calls from people in a panic about these messages all the fracking time, "I got an error, oh my god, the world is coming to an end, save me Jebus!"
What it boils down to is this: 1) People have no idea how computers work, not even on a basic level. 2) People have some very poorly conceived/outright wrong notions about how computers work. 3) People see things in black and white; it is either working, or 'the server' is down. 4) People think that error messages are for geeks. 5) People think that geeks love fixing computers so much, that we should do it for free.
That last one is what really pisses me off. For starters, I have a life outside of fixing your inane little problems, secondly, I hate doing it. I love programming, networking, and my job in general, but cleaning granny's spyware encrusted pc for the billionth time.... it is beyond teh suck. And of course, anything that we love so much, and _should_ do for free has no value, therefore, it is not worth it to non techies to learn to care for their own pc.
This all spills over into the world of surfing for data online, everyone assumes www.trust-me-i-am-right-about-whatever.com = legit site, whereas members.tripod.com/~dr-phils/page/about/whatever.h tml is not legit in any way. Its black and white, pure and simple. When it fails, it is not their fault because it is beyond their level of understanding. Heaven forbid they learn to do a little real research, beyond a basic google attempt. But no, that is the realm of the geek, valueless knowledge that gets you made fun of, and therefore, not worth even trying to learn.
Learning is not a high priority in our society, we stress memorization of facts. Which has its place, I can recite most major world events from the past couple centuries, but I am a history nut, comes with the territory. I would also love to engage some people in a conversation about why those events happened, and how they effect us today. Memorization doesn't help with that, and the computer world is no different. You can memorize the steps to sign in to AIM, or Myspace, but the minute the computer does something unexpected, you are up shit creek without some critical thinking skills. Which, I am sad to say, are in short supply these days.
you can quarantine all the stuff coming in as bounces from Joe Jobs, it will have no one as the recipient, so it'll get sent to postmaster@. We have been dumping them via cron like this:
sendmail -C/etc/mail/sendmail.cf -v -Q -qR""
basically, this will find all the mail that has no recipient defined, which I assume no one would have a problem if I nuked it, and changes the qf file to start with hf, and tags inside that file the name of the quarantine you gave it. Sendmail will forever ignore it, until you undo the quarantine like this:
sendmail -C/etc/mail/sendmail.cf -v -Q -qQ
You can have quarantines of various names, makes it easy to write a shell script to blow them away if you want. Just make sure you also clear out the df files if you decide to nuke this stuff. Don't just rm hf* it, or the df files will sit around forever.
We have seen a huge increase in the number of Joe Jobs lately, and as a consequence, our postmaster mail is filling up at record pace. Yesterday, I saw bounce notices from a single Joe Job coming in at several thousand a minute. Literally, thunderbird could not open my postmaster folder. I had to copy/dev/null into it, wait a few seconds, and open it with mutt if I wanted to see any of the data. Over fifty 50% of our processing time was spent sending mail to the postmaster admins, and we had a backlog of 25,000 messages. Our dual mail server beast could not keep up, fortunately, we found out why.
By default, sendmail uses a single queue runner. We found this, and not amavis, was our bottleneck. The single queue runner is fine for low and medium volumes, but fails miserably when presented with a huge volume of mail. So we fired 4 queue runners instead, and increased the number of available amavis children to compensate. The queue runners each have a behavior:
1) the default sendmail queue runner, starts at the front of the queue, and runs serial through it, then starts over. 2) tries to find the oldest members of the queue and process them first. Keeps stuff from being left alone for very long. 3) tries to find letters that are all going to the same mail server, and send them together. This one is awesome, as it opens a single tcp connection, and sends as many letters as it can. No time waiting for tcp handshaking per letter. 4) hops around the queue at random, and sends messages.
The combination of these four queue runners, and we have seen a huge increase in the load average on our mail servers, but we have also seen a great boost to performance. We are still seeing tons of postmaster bounces from Joe Jobs, but we aren't being slugged out by them anymore. If your mail server seems to be under performing, try this, it really does help.
Problem with sunglasses is that when you cut the lenses, and put them in the bath to stain them dark, they lose some of their corrective power, and the strength of the lens doesn't seem to degrade at any predictable rate. So most places that sell prescription shades are very reluctant to make glasses too strong, then put them in the stain bath. If they come out too strong, you'll be back in in a month complaining of severe headaches. You might have some luck if you ask, or see about getting the magnetic clip on shades. They are very slim, and near immpossible to tell that you aren't wearing shades once they are attached. Good Luck.
My first shave was with the then, very common, 2 blade razor. I was young, it worked on my peach fuzz. When the Mach 3 came out, I was there man, I had to try it, my beard was coming in thicker and thicker, and nothing was making my face smooth. So I tried something new. I loved my mach 3, I got such better results, and my face always felt less sore after shaving. I used my Mach 3 from almost the day it was released until the Fusion hit the shelves. I found the design highly laughable, but I thought I'd give it a shot anyways. Meijer had em on special one day, so I picked one up.
Basically, I have found that the Fusion works better on shorter hair, while the Mach 3 does a great job if I haven't shaved in 3-4 days. Tthe Fusion allows me to get a smooth shave, with minor irritation every day, something I have never been able to do before. My facial hair grows in very thick, but slowly, so I have never been able to shave daily, until my Fusion. However, if I leave it go for a few days, if I neglect my face, the fusion performs very poorly. I am left with an uncomfortable, girlfriend scratching stubble and the occasional ingrown hair. On the flipside, if I shave too soon with a Mach 3, my face will be beet red for hours. So, I keep them around for whatever state my face is in currently.
Course, six weeks ago, I said fuck em all to hell, and started having my facial hair permanently lasered off. I figure I stand to save a ton of cash in the long run, what with razors, shaving gel, hot water, and TIME.
I buy whatever is good looking on the quality rack at Lenscrafters. I shop from them, because I usually only need new glasses when I have destroyed my last pair in some hysterical accident. The hour delivery will cost you another 50 bucks, but it is worth the speediness to me.
All places that sell glasses have a shitty quality rack. Avoid these like the plague, they are for people who need insurance to cover the lenses. Generally, they are flimsey, and will be destroyed in 6-12 months. Pay over one hundred bucks for the frames alone, and they will last through anything. I sleep with mine on all the time.
All those espensive features they sell, snug fit, ultra lightweight but still durable frames, polarized lenses? All very much worth it. Course, all that will run 350+ after you add in the lenses.
They really don't seem to make quality glasses for people that do not need them.
Sooooo, Microsoft can't fix their OS by cleaning up there code, so they are going for the security through obscurity approach? And while they are at it, taking swipes at Mcafee and Symantec marketshare? Great idea, cause yeah, that works. Anyone who knows anything about security, knows that obscurity is _not_ part of it.
* James Bond: Casino Royale - this may surprise you, but not all geeks think bond is the shit, I have never seen a Bond movie, not about to break that streak now.
* Open Season: I don't even know this is, but it sounds like a show about rednecks shooting deer and calling it manly.
* Monster House: Ooooooo, that sounded sooooooo entertaining.
* Spiderman 3: *yawn*
* Stranger Than Fiction: Wait, they made this movie? It _is_ stranger....
* The Da Vinci Code: Book sucked, movies are always shitty compared to books, therefore, the movie will blow an elephant.
* Zoom: HAHAHAHA! Please tell me, no one actuallhy paid money to see this, or wasted a blank DVD to steal this?
* The King of Queens: Yeah, a TV show about a big fat guy with a hot wife..... or did I mix that up with the other incredably insiteful and enjoyable show about a big fat guy with a hot wife?
* JEOPARDY!: Alright, I found one thing I might miss, did I mention I don't have cable, or dish?
* Wheel of Fortune: What am I? 70 years old?
* Ripley's Believe It or Not!: I can't believe this is still on the air.
* Dragon Tales: Again, wtf is this? I realize not having a TV limits my exposure, but wtf is this?
* The Boondocks: You kidding? When I go someplace, and this show is on, I hurl large, dense objects at the screen.
Okay, looks like I am all set for my Sony Boycott. I am changing absolutely none of my spending habits. Oh, and I don't own any sony hardware either.
Now, would I have cared to bother with any of this had a boycott required me to do so? Not bloody likely, I just to point out that Sony's products suck.
Or how about sunglasses? Yes, Oakleys and Ray Bans are overpriced, but they actually are much better sunglasses than the kind on the spinning rack at the local drug store.
I wear presctiption sunglasses, which cost a small fortune, stand up to anything, and have to be comfortable because I can't see shit without them. Let me assure you, Oakleys and Ray-Bans are _not_ a high quality product. Better than the spinny rack? Yes. But that doesn't mean they aren't junk.
I loathe wallets, they are bloody huge, and they tend to get fatter and fatter as their life goes on. Now, I have always hated the massive size of your average wallet as I do not like to carry around anything too bulky. Keys, cash and cards, and phone (a truely small one).
So, my geek wallet? A hair tie, I wear my hair pulled back most days, when the hair ties get strentched out, assuming they don't break first, they get promoted to wallet status. A roll of cash, and credit cards wrapped with a hair tie makes a small, effective, cheap wallet that gets me many, many creative comments.
My mother buys me a new wallet every damned christmas, a holiday I don't celebrate mind you, and gets mad that I never use them. So, I have a fine collection of leather wallets in perfect condition. None of them can match my hair tie in terms of size, weight, or ease of accessibility.
AS the AC already mentioned to you, and as I already mentioned, cisco routers route 98%+ of their traffic directly between the line cards, so the CPU can handle important stuff, like handling the routing and express forwarding tables. You can get much better performance out of a cisco because of this architecture because even your quad proc pc based router still has to shove everything through the CPU, and will buckle under the load once you add more than a few line cards. Try plugging your quad proc server full of fiber links and and running some real traffic through it. It won't keep up. It has nothing to do with power, and everything to do with how much shit can it do at once. Cisco equipment uses a backplane that is essentially a very advanced switch(the 73xx series _is_ a switch that has layer 3 routing capabilities), and uses the cpu to direct the layer 3 traffic in a very general way, so that the layer 2 hardware can handle it very rapidly. MRTG poll the cpu clock on a cisco router, unless a major routing change takes place, it is fairly innert. Sign in and do a show version, and it will only be a 200 mhz mips chip, or something else relatively weak, but its not doing anything, because it doesn't have to. The more traffic it handles, it doesn't matter. Try that with a pc router, everytime you add another gigE link, you'll be adding more cpu power to the system to keep up, and it will still under perform. And don't even think about throwing BGP at it.
To see what a a cisco router does when it routes _everything_ through the CPU, sign into one and do this:
configure terminal no ip cef
and watch it slow down to a crawl. Now just remember that a cpu can essentially do one thing at a time, that's one packet at a time. But you have god knows how many line cards coming in, all going crazy all the time. You need faster than 1 at a time, because they are coming in 20 at a time, and expecting to leave at pretty much the same rate. Now, I am sure you think multiple procs with multiple cores solves this, but your internal bus won't. You're going to have individual line cards dropping packets like mad because they can't get their incoming data to the cpu fast enough. PC's are not designed to handle shitloads of tiny, serialized data coming in from multiple sources all at once.
So, you have a couple of subnets, all through one central router that has one default route, so your routing table has what? All of four entries? And you think this proves that a PC can beat a 'real' router?
Sorry, that just doesn't need much power to work. Try adding in OSPF, and some redundant links into your internal network. Get a second ISP and become multihomed, run BGP and add all 194,000+ entires from the global routing table into the mix, watch that P133 slow to a crawl.
Software routers handle everything on the CPU, the reason 'real' routers work in enterprise scale enviroments is because they do not. The CPU handles BGP and IGP topology changes, individual flows are routed directly on the line cards. Show me a PC based router that can do that.
Good luck getting that into the global routing table, even the laziest, least knowlagable network admins who don't filter any routes know better than to accept an announcement from rfc 1918 space.
You might cause a minor local disturbance, but not for long. Shit like this is pretty easy to find. Really a non-issue.
Considering that the F-14 is still the only airborne platform capable of delivering the AIM-54(someone can correct me if I am wrong, I don't keep up with the military stuff as much as I used to), I tend to agree that the days of the pure air superority fighter are at an end. Its a shame really, as the highly romantisized, cocky fighter pilot image is gone with it. Replaced by the far more utulitarian, but far less glamorous multirole pilot, and his multirole aircraft. The F-22, the FA-18, less sexy, but more useful.
And you are right, the B-52 is a sexy, sexy beast, but why is the F-117 called a fighter? I don't get it, why is a clearly pure attack aircraft called a fighter?
Will the high latency seriously affect the overall download and upload speeds?"
Yes, and it will be so awful you won't be able to play period. The _only_ thing sat internet is good for is big downloads from a single source. Kiss file sharing good bye, and forget about gaming.
If you want to game in the country, find a wireless isp that doesn't have a shitty T1 (or less) connection (real isp's that use wireless do exist, do some research), that uses Motorla Canopy radios. As I write this, I am enjoying 4.5 mbit down, and 2.0 mbit up speeds from my Canopy 5.7 ghz service. With low latency to boot. Wireless internet, when done right, can be as fast and as reliable as a cale modem. Satellite inet is a waste of your money. And I say 'when done right' because there are a load of pathetic fake wireless isp's out there that use 802.11 junk and a single business class cable modem, and call it internet service, avoid them like the plague.
I am amazed at the number of replies that say, "Oh just get a new phone, switch providers, or buy a landline." Isn't this supposed to be a site for geeks, tinkerers, people that like to fix stuff by ourselves? This person wants to fix a problem, and they want to fix it the geek way, and all everyone is saying is, "be a good consumer and give the phone company more money." This is supposed to be a geek site, and all these answers sound like they belong in Newsweek.
My own two cents. I frequently work in a datacenter that can, in theory, withstand a level 5 tornado hit. As a consequence, cell phones suck as inside the building. They recently installed a 500 dollar booster, not sure of the model, but it did indeed boost signal strength from useless to quite bearable. My casual inspection of the device revealed some kind of omnidirectional antenna fed by coaxial wire that ran to the roof, where I can only assume the rest of the gear was.
Do bear in mind that coax wire is a pretty lossy method of transmitting microwaves, and the connectors bleed power levels off like its their primary function. If you are going to need more than 30 feet in between ends, consider spending a bit more money on a better grade of coax than your standard stuff. Otherwise, you are throwing your money away. Microwaves move better through the air than they do over wire. So, collecting the waves where they are strongest, on the roof, with a dish, and carrying them inside over coax to another antenna only has a point if you don't bleed out all the signal strength along the way.
I have to second this, nagios is amazing for network monitoring. You can actively poll for availability, build a complex dependency tree based on your network's actual layout. It scales very well, you can have the main web interface server in a good central spot, and have servers that do the actual checking and report back littered throughout your network. It can handle snmp traps with the addition of net-snmp, you can write your own checks and plugins, customize notifications. It is really an amazing framework.
Grab the no starch press book on nagios, it has examples of how to do everything I just said, and much more.
"It doesn't crash as much as windows Me did..... Woohoo! Call it stable! Microsoft has done it again!"
Now, if they could just design a simple UI that didn't so many bells and whistles on it that it might have to display a warning for people with epilepsy problems.
Oh, and to all you people building Vista ready PC's now? Get a clue. The requirements are steep, no doubt, but as newer hardware comes out, driving existing costs down, as it always does, this will be a cheaper hurdle to overcome in the future. So, in a nutshell, you are building a top dollar machine to run an OS, right now, that isn't even out yet. One whose system requirements are almost assured to go up a bit more.
Picky picky, T1, E1, whatever. The one is available to me, the other is what I wish was available to me.
And on my own previous post, SDSL is always available where ADSL is available, not the other way around, as I mistated before. I had em reversed, but my point still stands, ADSL is not a replacement for SDSL.
Slashdot Mirror
Screw dollar coins, go to Canada for a week, find yourself lugging 12 of them around, they are heavy as hell, make noise, and do NOT make good stripper tips.
Think of the dancers, single moms need money too!
Congratulations, you are causing more headaches for other people than you know.
What you are basically doing is being a giant auto responder, google "why autoresponders are bad" for some reading material.
This is one of those anti spam solutions that may work great for you, but causes massive headaches for those around you. Heaven forbid a person get joe-jobbed and you be the recipient. I'll get bounce notices for all the invalid addresses sent to your domain, and a challenge response from all the valid ones. Bog down my mail server even more than it is already with your junk.
Do the net a favor, and start obeying standards. They exist for a reason, I am surprised all the noise you create hasn't got your mail server listed in a few RBL's.
Had a friend who had a box colo'd for free at a fairly run down ISP. It was due to some contractual obligation they had to live up to, so they were not happy about it. Was supposed to have a 10 mbit connection to the switch, and pretty much unmetered out over the backbone, but it never saw more than 2 mbit. Turns out, the ISP put an extra long ethernet line place, 500 feet of signal killing goodness. Just to make his service suck, in a way not easy to see unless you pulled up the raised floor, and noticed that all that wire was in fact, one single wire, going back, and forth, and back and forth.
Another friend has the dilbert boss, decided that the router _needs_ to be at one end of the building, far away from the office. A distance of 350 yards, add even more when you take into account the fact that the wiring goes from the ground floor at one end, up above the second floor, spans the building, and comes back down to the ground. Then, he decides that 10 base T is too slow, and he demands gigE. My friend tries explaining to him why all of this is nuts of course, but the man never listens, and says, "just buy a bunch of repeaters." So, this gigE run of nearly 400 yards, is daisy chained together, every 100 yards or so, by a 4 port gigE switch. Most of them live up in the drop ceiling above the second floor, and have some ludicrous power lines run to them. Store and forward nightmare. Boss is currently pissed because it is slow, and because the gigE switches didn't make his 3 mbit cable modem go any faster.
So, who is going to move into the house across the street from the Simpson's?
Thank you! I met Steph the Geek a few years ago at a con, and got stuck sitting next to her in a car ride to a restaurant with about 12 other geeks. Thank god I was the DD for the ride back, and she was much further away from me for the rest of the time. I'd never even heard of her before, but I found out very quickly she is hardly a geek at all, she is a cam whore who knows html and javascript. She didn't seem to have much of a brain on her shoulders, but that didn't seem to bother any of the geniuses I was hanging around from dropping all dignity and going gah gah over her. All the geniuses I might add, who constantly claim they adore smart women, then flirt with the dumb bimbo.
Thank you, I thought I was the only person who failed to see the geek in Steph the Geek.
For one thing, what is "the server"? What do you mean, were you loading a web page, and a message popped up? Were you trying to check your email? Help me out here. More often than not, I get a "well, the server is down isn't it?" response, to which, I cry. Heaven forbid they read the error message and let me know what it said, but people don't like to read.
Then we get the people who get the obvious error messages, but are either too stupid, or too convinced of their own stupidity to comprehend them, and years of doing this make me believe the latter are usually right. This from yesterday's support mail:
The woman was pissed because her message did not grow through, and she demanded that I fix it right away. Telling her that I couldn't change the maximum message size that Juno accepts was not as hard as you might think, and once she realized that the error message she had sent me, already said everything I told her..... I hope she felt like a dumbass for a moment. No, I do not think SMTP errors are too hard to understand, they are very english like, and very descriptive. Ever see the ones that say, "I have not succeeded in sending your letter for four hours, but I am still trying, this is not an error, just a warning, please don't send your message again."? Yeah, we get calls from people in a panic about these messages all the fracking time, "I got an error, oh my god, the world is coming to an end, save me Jebus!"
What it boils down to is this:
1) People have no idea how computers work, not even on a basic level.
2) People have some very poorly conceived/outright wrong notions about how computers work.
3) People see things in black and white; it is either working, or 'the server' is down.
4) People think that error messages are for geeks.
5) People think that geeks love fixing computers so much, that we should do it for free.
That last one is what really pisses me off. For starters, I have a life outside of fixing your inane little problems, secondly, I hate doing it. I love programming, networking, and my job in general, but cleaning granny's spyware encrusted pc for the billionth time.... it is beyond teh suck. And of course, anything that we love so much, and _should_ do for free has no value, therefore, it is not worth it to non techies to learn to care for their own pc.
This all spills over into the world of surfing for data online, everyone assumes www.trust-me-i-am-right-about-whatever.com = legit site, whereas members.tripod.com/~dr-phils/page/about/whatever.
Learning is not a high priority in our society, we stress memorization of facts. Which has its place, I can recite most major world events from the past couple centuries, but I am a history nut, comes with the territory. I would also love to engage some people in a conversation about why those events happened, and how they effect us today. Memorization doesn't help with that, and the computer world is no different. You can memorize the steps to sign in to AIM, or Myspace, but the minute the computer does something unexpected, you are up shit creek without some critical thinking skills. Which, I am sad to say, are in short supply these days.
If Sid Meijers Alpha Centauri is any indication, if this needs to be done to control the climate... it is already too late.
you can quarantine all the stuff coming in as bounces from Joe Jobs, it will have no one as the recipient, so it'll get sent to postmaster@. We have been dumping them via cron like this:
/etc/mail/sendmail.cf -v -Q -qR""
/etc/mail/sendmail.cf -v -Q -qQ
sendmail -C
basically, this will find all the mail that has no recipient defined, which I assume no one would have a problem if I nuked it, and changes the qf file to start with hf, and tags inside that file the name of the quarantine you gave it. Sendmail will forever ignore it, until you undo the quarantine like this:
sendmail -C
You can have quarantines of various names, makes it easy to write a shell script to blow them away if you want. Just make sure you also clear out the df files if you decide to nuke this stuff. Don't just rm hf* it, or the df files will sit around forever.
We have seen a huge increase in the number of Joe Jobs lately, and as a consequence, our postmaster mail is filling up at record pace. Yesterday, I saw bounce notices from a single Joe Job coming in at several thousand a minute. Literally, thunderbird could not open my postmaster folder. I had to copy /dev/null into it, wait a few seconds, and open it with mutt if I wanted to see any of the data. Over fifty 50% of our processing time was spent sending mail to the postmaster admins, and we had a backlog of 25,000 messages. Our dual mail server beast could not keep up, fortunately, we found out why.
By default, sendmail uses a single queue runner. We found this, and not amavis, was our bottleneck. The single queue runner is fine for low and medium volumes, but fails miserably when presented with a huge volume of mail. So we fired 4 queue runners instead, and increased the number of available amavis children to compensate. The queue runners each have a behavior:
1) the default sendmail queue runner, starts at the front of the queue, and runs serial through it, then starts over.
2) tries to find the oldest members of the queue and process them first. Keeps stuff from being left alone for very long.
3) tries to find letters that are all going to the same mail server, and send them together. This one is awesome, as it opens a single tcp connection, and sends as many letters as it can. No time waiting for tcp handshaking per letter.
4) hops around the queue at random, and sends messages.
The combination of these four queue runners, and we have seen a huge increase in the load average on our mail servers, but we have also seen a great boost to performance. We are still seeing tons of postmaster bounces from Joe Jobs, but we aren't being slugged out by them anymore. If your mail server seems to be under performing, try this, it really does help.
Problem with sunglasses is that when you cut the lenses, and put them in the bath to stain them dark, they lose some of their corrective power, and the strength of the lens doesn't seem to degrade at any predictable rate. So most places that sell prescription shades are very reluctant to make glasses too strong, then put them in the stain bath. If they come out too strong, you'll be back in in a month complaining of severe headaches. You might have some luck if you ask, or see about getting the magnetic clip on shades. They are very slim, and near immpossible to tell that you aren't wearing shades once they are attached. Good Luck.
My first shave was with the then, very common, 2 blade razor. I was young, it worked on my peach fuzz. When the Mach 3 came out, I was there man, I had to try it, my beard was coming in thicker and thicker, and nothing was making my face smooth. So I tried something new. I loved my mach 3, I got such better results, and my face always felt less sore after shaving. I used my Mach 3 from almost the day it was released until the Fusion hit the shelves. I found the design highly laughable, but I thought I'd give it a shot anyways. Meijer had em on special one day, so I picked one up.
Basically, I have found that the Fusion works better on shorter hair, while the Mach 3 does a great job if I haven't shaved in 3-4 days. Tthe Fusion allows me to get a smooth shave, with minor irritation every day, something I have never been able to do before. My facial hair grows in very thick, but slowly, so I have never been able to shave daily, until my Fusion. However, if I leave it go for a few days, if I neglect my face, the fusion performs very poorly. I am left with an uncomfortable, girlfriend scratching stubble and the occasional ingrown hair. On the flipside, if I shave too soon with a Mach 3, my face will be beet red for hours. So, I keep them around for whatever state my face is in currently.
Course, six weeks ago, I said fuck em all to hell, and started having my facial hair permanently lasered off. I figure I stand to save a ton of cash in the long run, what with razors, shaving gel, hot water, and TIME.
I buy whatever is good looking on the quality rack at Lenscrafters. I shop from them, because I usually only need new glasses when I have destroyed my last pair in some hysterical accident. The hour delivery will cost you another 50 bucks, but it is worth the speediness to me.
All places that sell glasses have a shitty quality rack. Avoid these like the plague, they are for people who need insurance to cover the lenses. Generally, they are flimsey, and will be destroyed in 6-12 months. Pay over one hundred bucks for the frames alone, and they will last through anything. I sleep with mine on all the time.
All those espensive features they sell, snug fit, ultra lightweight but still durable frames, polarized lenses? All very much worth it. Course, all that will run 350+ after you add in the lenses.
They really don't seem to make quality glasses for people that do not need them.
Sooooo, Microsoft can't fix their OS by cleaning up there code, so they are going for the security through obscurity approach? And while they are at it, taking swipes at Mcafee and Symantec marketshare? Great idea, cause yeah, that works. Anyone who knows anything about security, knows that obscurity is _not_ part of it.
Lets see, can I boycott Sony? I bet I can!
* James Bond: Casino Royale - this may surprise you, but not all geeks think bond is the shit, I have never seen a Bond movie, not about to break that streak now.
* Open Season: I don't even know this is, but it sounds like a show about rednecks shooting deer and calling it manly.
* Monster House: Ooooooo, that sounded sooooooo entertaining.
* Spiderman 3: *yawn*
* Stranger Than Fiction: Wait, they made this movie? It _is_ stranger....
* The Da Vinci Code: Book sucked, movies are always shitty compared to books, therefore, the movie will blow an elephant.
* Zoom: HAHAHAHA! Please tell me, no one actuallhy paid money to see this, or wasted a blank DVD to steal this?
* The King of Queens: Yeah, a TV show about a big fat guy with a hot wife..... or did I mix that up with the other incredably insiteful and enjoyable show about a big fat guy with a hot wife?
* JEOPARDY!: Alright, I found one thing I might miss, did I mention I don't have cable, or dish?
* Wheel of Fortune: What am I? 70 years old?
* Ripley's Believe It or Not!: I can't believe this is still on the air.
* Dragon Tales: Again, wtf is this? I realize not having a TV limits my exposure, but wtf is this?
* The Boondocks: You kidding? When I go someplace, and this show is on, I hurl large, dense objects at the screen.
Okay, looks like I am all set for my Sony Boycott. I am changing absolutely none of my spending habits. Oh, and I don't own any sony hardware either.
Now, would I have cared to bother with any of this had a boycott required me to do so? Not bloody likely, I just to point out that Sony's products suck.
I wear presctiption sunglasses, which cost a small fortune, stand up to anything, and have to be comfortable because I can't see shit without them. Let me assure you, Oakleys and Ray-Bans are _not_ a high quality product. Better than the spinny rack? Yes. But that doesn't mean they aren't junk.
I loathe wallets, they are bloody huge, and they tend to get fatter and fatter as their life goes on. Now, I have always hated the massive size of your average wallet as I do not like to carry around anything too bulky. Keys, cash and cards, and phone (a truely small one).
So, my geek wallet? A hair tie, I wear my hair pulled back most days, when the hair ties get strentched out, assuming they don't break first, they get promoted to wallet status. A roll of cash, and credit cards wrapped with a hair tie makes a small, effective, cheap wallet that gets me many, many creative comments.
My mother buys me a new wallet every damned christmas, a holiday I don't celebrate mind you, and gets mad that I never use them. So, I have a fine collection of leather wallets in perfect condition. None of them can match my hair tie in terms of size, weight, or ease of accessibility.
AS the AC already mentioned to you, and as I already mentioned, cisco routers route 98%+ of their traffic directly between the line cards, so the CPU can handle important stuff, like handling the routing and express forwarding tables. You can get much better performance out of a cisco because of this architecture because even your quad proc pc based router still has to shove everything through the CPU, and will buckle under the load once you add more than a few line cards. Try plugging your quad proc server full of fiber links and and running some real traffic through it. It won't keep up. It has nothing to do with power, and everything to do with how much shit can it do at once. Cisco equipment uses a backplane that is essentially a very advanced switch(the 73xx series _is_ a switch that has layer 3 routing capabilities), and uses the cpu to direct the layer 3 traffic in a very general way, so that the layer 2 hardware can handle it very rapidly. MRTG poll the cpu clock on a cisco router, unless a major routing change takes place, it is fairly innert. Sign in and do a show version, and it will only be a 200 mhz mips chip, or something else relatively weak, but its not doing anything, because it doesn't have to. The more traffic it handles, it doesn't matter. Try that with a pc router, everytime you add another gigE link, you'll be adding more cpu power to the system to keep up, and it will still under perform. And don't even think about throwing BGP at it.
To see what a a cisco router does when it routes _everything_ through the CPU, sign into one and do this:
configure terminal
no ip cef
and watch it slow down to a crawl. Now just remember that a cpu can essentially do one thing at a time, that's one packet at a time. But you have god knows how many line cards coming in, all going crazy all the time. You need faster than 1 at a time, because they are coming in 20 at a time, and expecting to leave at pretty much the same rate. Now, I am sure you think multiple procs with multiple cores solves this, but your internal bus won't. You're going to have individual line cards dropping packets like mad because they can't get their incoming data to the cpu fast enough. PC's are not designed to handle shitloads of tiny, serialized data coming in from multiple sources all at once.
So, you have a couple of subnets, all through one central router that has one default route, so your routing table has what? All of four entries? And you think this proves that a PC can beat a 'real' router?
Sorry, that just doesn't need much power to work. Try adding in OSPF, and some redundant links into your internal network. Get a second ISP and become multihomed, run BGP and add all 194,000+ entires from the global routing table into the mix, watch that P133 slow to a crawl.
Software routers handle everything on the CPU, the reason 'real' routers work in enterprise scale enviroments is because they do not. The CPU handles BGP and IGP topology changes, individual flows are routed directly on the line cards. Show me a PC based router that can do that.
Good luck getting that into the global routing table, even the laziest, least knowlagable network admins who don't filter any routes know better than to accept an announcement from rfc 1918 space.
You might cause a minor local disturbance, but not for long. Shit like this is pretty easy to find. Really a non-issue.
Considering that the F-14 is still the only airborne platform capable of delivering the AIM-54(someone can correct me if I am wrong, I don't keep up with the military stuff as much as I used to), I tend to agree that the days of the pure air superority fighter are at an end. Its a shame really, as the highly romantisized, cocky fighter pilot image is gone with it. Replaced by the far more utulitarian, but far less glamorous multirole pilot, and his multirole aircraft. The F-22, the FA-18, less sexy, but more useful.
And you are right, the B-52 is a sexy, sexy beast, but why is the F-117 called a fighter? I don't get it, why is a clearly pure attack aircraft called a fighter?
Yes, and it will be so awful you won't be able to play period. The _only_ thing sat internet is good for is big downloads from a single source. Kiss file sharing good bye, and forget about gaming.
If you want to game in the country, find a wireless isp that doesn't have a shitty T1 (or less) connection (real isp's that use wireless do exist, do some research), that uses Motorla Canopy radios. As I write this, I am enjoying 4.5 mbit down, and 2.0 mbit up speeds from my Canopy 5.7 ghz service. With low latency to boot. Wireless internet, when done right, can be as fast and as reliable as a cale modem. Satellite inet is a waste of your money. And I say 'when done right' because there are a load of pathetic fake wireless isp's out there that use 802.11 junk and a single business class cable modem, and call it internet service, avoid them like the plague.
I am amazed at the number of replies that say, "Oh just get a new phone, switch providers, or buy a landline." Isn't this supposed to be a site for geeks, tinkerers, people that like to fix stuff by ourselves? This person wants to fix a problem, and they want to fix it the geek way, and all everyone is saying is, "be a good consumer and give the phone company more money." This is supposed to be a geek site, and all these answers sound like they belong in Newsweek.
My own two cents. I frequently work in a datacenter that can, in theory, withstand a level 5 tornado hit. As a consequence, cell phones suck as inside the building. They recently installed a 500 dollar booster, not sure of the model, but it did indeed boost signal strength from useless to quite bearable. My casual inspection of the device revealed some kind of omnidirectional antenna fed by coaxial wire that ran to the roof, where I can only assume the rest of the gear was.
Do bear in mind that coax wire is a pretty lossy method of transmitting microwaves, and the connectors bleed power levels off like its their primary function. If you are going to need more than 30 feet in between ends, consider spending a bit more money on a better grade of coax than your standard stuff. Otherwise, you are throwing your money away. Microwaves move better through the air than they do over wire. So, collecting the waves where they are strongest, on the roof, with a dish, and carrying them inside over coax to another antenna only has a point if you don't bleed out all the signal strength along the way.
I have to second this, nagios is amazing for network monitoring. You can actively poll for availability, build a complex dependency tree based on your network's actual layout. It scales very well, you can have the main web interface server in a good central spot, and have servers that do the actual checking and report back littered throughout your network. It can handle snmp traps with the addition of net-snmp, you can write your own checks and plugins, customize notifications. It is really an amazing framework.
Grab the no starch press book on nagios, it has examples of how to do everything I just said, and much more.
So let me get this straight.
"It doesn't crash as much as windows Me did..... Woohoo! Call it stable! Microsoft has done it again!"
Now, if they could just design a simple UI that didn't so many bells and whistles on it that it might have to display a warning for people with epilepsy problems.
Oh, and to all you people building Vista ready PC's now? Get a clue. The requirements are steep, no doubt, but as newer hardware comes out, driving existing costs down, as it always does, this will be a cheaper hurdle to overcome in the future. So, in a nutshell, you are building a top dollar machine to run an OS, right now, that isn't even out yet. One whose system requirements are almost assured to go up a bit more.
Picky picky, T1, E1, whatever. The one is available to me, the other is what I wish was available to me.
And on my own previous post, SDSL is always available where ADSL is available, not the other way around, as I mistated before. I had em reversed, but my point still stands, ADSL is not a replacement for SDSL.