Have you ever noticed that you get a WORSE level of service over the phone (or otherwise remotely) than in person? Sure you have! Here is the reason: There exists LESS accountability. For exmaple, when I have the ability to drive down the street and GET IN TO SOMEONES FACE if I am not satisfied with a product or service, you know what? I tend to get better service! Thats what network management is, a service. Any manager with half a brain would not do this. They would realize that (as other/. posters have pointed out), HARDWARE fails too. Lesson; you need good local people!! Always have, always will.
You are correct. Greylisting (usually) has nothing to do with looking up the rDNS records for hosts, thats the MTA's job. On my mail servers, I do both. And no, rDNS lookup is not required for an MTA to accept mail; but according to this RFC: http://www.ietf.org/rfc/rfc2821.txt, the SENDING host should have a PTR record. But you are right, nothing to do with greylisting. My point was, that these spam hosts are getting more sophisticated; i.e., they are acting more and more like MTA's by retrying and having thier fqdn host names in thier HELO, etc - thereby making it harder to distinguish from legitamate mail servers. -Ponga
Yep. Greylisting rocks, no doubt about it. However, the party might be over my friend. I am seeing more and more spam these days because more and more hosts (zombies, open relays, etc.) are retrying with legit reverse PTR records. Thats to say, more and more spam bots are getting wise to the idea, and acting more an more like legitimate SMTP servers. That is not good news for those of use that use greylisting. Have you noticed any increase yourself? I've been greylisting for about 2 years now. Just over the last couple months have I noticed the increase...
Nope. Thunderbird 1.0.7 I mean, in all actuality, it should not be neccesary - I *try* to 'preview' everything I send.. before I send it. What is most aggravating sometimes, is when I get into a typing frenzy and accidentally hit CTRL+RETURN (which is the key sequence to SEND). Times like those I wish there were a mandatory preview function. But I think I might get tired of it and turn it off anyway;-)
T-mobile is the carrier. Now think, phone model is not the only consideration! As an aside, you should be able to compare the performace of the phone by doing a quick Google search on a few key factors such as: Max mW output, antenna dB rating, receiver sensitivity, etc.
On occasion, I'll see a movie that was really good. Then, on even a more rare occasion, I'll see a movie worthy of owning. Then... once in a blue moon... I'll see a movie... and after the movie has ended... I MUST go and see it again! Serenity was this last scenario. I have to tell ya, It's been a L O N G time since I have seen a movie that I have enjoyed this much!
http://www.snmp-informant.com/SnmpInformant - The seller of this product is pretty lame, but the mibs (if even needed) work just fine.
http://www.paessler.com/prtg/Prtg - *GREAT* little app (Windoze version of MRTG... on steroids) for only $40 that collects SNMP data and presents it in graphs using it's own http server. *GREAT* little app!
You know, I find SNMP support on Linux is pretty weak. We have several Windoze servers running SQL, IIS, and other services - all of which, we were able to find MIB's for and monitor via snmp very easily. We keep track an MANY aspects of these servers and log historically via our snmp clients. We have recently been introducing many Linux servers and upon trying to monitor then in a similar fasion, I have found that several things just are not possible! For exmaple, Apache is REALLY hard to monitor with SNMP. You have to custom compile with mod_snmp. Postfix... same situation, although I can't recall being able to monitor that at all with snmp. I wish that were not the case. And ya, I know. A lot of this has to do with the specific package in question, not Linux, per se. Still, it reflects poorly on the OS for which is was designed. At any rate, it has influenced our decisions about installing new Linux platforms:( I wish it were not the case, but we WANT to use snmp!
People at my company regularly received 80 spam emails per day when I started (Exchange 2000). I promptly installed a Linux mail gateway with Postfix as the MTA, Postgrey and Spamassasin. The very next day I had people coming to ME, asking me if I had changed soemthing on the mail server, because they only had a few messages in thier mailbox, rather than thier usaual dozens.
I'm telling you, you cannot count on AOL, gMail or whoever to control spam, and in my opinion, filters at the client level are stupid. You STILL recieve the spam, no matter what folder it goes to!! Host-based filtering is the ONLY way to go these days.
Works like a CHAMP too! Dns checks, RBL checks, destination controls, greylisting - and the last line of defense, Spamassasin for the heuristics scanning. After all that, there is no need to have client level filtering!
After doing some research, I found out that MySpace lives in a single Class C IP block, (This may change over time, but as of now this info is accurate.)
Simply add this to your firewall rules to block and your set!
MySpace IP Block:
------------------
63.208.226.0/24
-
-Ponga
You mean, aptitude, right?
I just installed 3.1 and to my dismay, apt-get is no where to be found. Yes, yes, aptitude is better, blah blah... but come on, I had been typing 'apt-get' for years!?
How true! I had been running Woody for years, then Sarge (stable) came out so, what the hell, I jumped on board... just last week! Now I have to deal with Etch!! Ah, Debian, your killing me with these 'regular' release scheduals!
If you want a road map of whats going to happen to TV, take a look at radio.
Sirius and XM are becoming more popular and from what I've seen, public radio is gaining an audience. People are abandoning commercial radio because now there are alternatives!
The same will happen to TV, take note!
In general, I would expect people to buy a CHEAP pc and as soon as they get home with it, borrow thier friends or relatives Windows XP disk to install over whatever OS the computer came with... so with these boxes being based on MIPS, those folks are out of luck! This will be an interesting!
Slashdot Mirror
Huh. Interesting. Which doctor?
Go to Hamfests! Join you local RA! Participate in nets!
After meeting many interesting people, you would be amazed what you can learn and how it builds your interest in the subject!!
I SALUTE YOU Sir for your clearly superior ST:TNG knowledge!
(Btw, one of the BEST TNG eps ever!)
I think you ment to say this:
I'd say that the reef would be destroyed at a rate calculated to coincide with patient expiration
I don't think anyone thinks it's beneficial for the company.
It's beneficial for the exec doing the offshoring
SO TRUE!
Have you ever noticed that you get a WORSE level of service over the phone (or otherwise remotely) than in person? Sure you have! Here is the reason: There exists LESS accountability. /. posters have pointed out), HARDWARE fails too.
For exmaple, when I have the ability to drive down the street and GET IN TO SOMEONES FACE if I am not satisfied with a product or service, you know what? I tend to get better service!
Thats what network management is, a service.
Any manager with half a brain would not do this. They would realize that (as other
Lesson; you need good local people!! Always have, always will.
You are correct. Greylisting (usually) has nothing to do with looking up the rDNS records for hosts, thats the MTA's job. On my mail servers, I do both. And no, rDNS lookup is not required for an MTA to accept mail; but according to this RFC: http://www.ietf.org/rfc/rfc2821.txt, the SENDING host should have a PTR record. But you are right, nothing to do with greylisting.
My point was, that these spam hosts are getting more sophisticated; i.e., they are acting more and more like MTA's by retrying and having thier fqdn host names in thier HELO, etc - thereby making it harder to distinguish from legitamate mail servers.
-Ponga
Yep. Greylisting rocks, no doubt about it. However, the party might be over my friend. I am seeing more and more spam these days because more and more hosts (zombies, open relays, etc.) are retrying with legit reverse PTR records. Thats to say, more and more spam bots are getting wise to the idea, and acting more an more like legitimate SMTP servers.
That is not good news for those of use that use greylisting.
Have you noticed any increase yourself? I've been greylisting for about 2 years now. Just over the last couple months have I noticed the increase...
Nope. Thunderbird 1.0.7 ;-)
I mean, in all actuality, it should not be neccesary - I *try* to 'preview' everything I send.. before I send it. What is most aggravating sometimes, is when I get into a typing frenzy and accidentally hit CTRL+RETURN (which is the key sequence to SEND). Times like those I wish there were a mandatory preview function. But I think I might get tired of it and turn it off anyway
Maybe email clients should have a 'Preview' button too, eh?
T-mobile is the carrier. Now think, phone model is not the only consideration! As an aside, you should be able to compare the performace of the phone by doing a quick Google search on a few key factors such as: Max mW output, antenna dB rating, receiver sensitivity, etc.
On occasion, I'll see a movie that was really good. Then, on even a more rare occasion, I'll see a movie worthy of owning.
Then... once in a blue moon... I'll see a movie... and after the movie has ended... I MUST go and see it again!
Serenity was this last scenario.
I have to tell ya, It's been a L O N G time since I have seen a movie that I have enjoyed this much!
Serenity ROCKS
SNMP is the answer to your question.
http://www.ipswitch.com/Products/WhatsUp/WhatsUP - Kinda pricy. I don't know, there may be an FOSS solution, but I have never seen one.
http://www.snmp-informant.com/SnmpInformant - The seller of this product is pretty lame, but the mibs (if even needed) work just fine.
http://www.paessler.com/prtg/Prtg - *GREAT* little app (Windoze version of MRTG... on steroids) for only $40 that collects SNMP data and presents it in graphs using it's own http server. *GREAT* little app!
-Ponga
You know, I find SNMP support on Linux is pretty weak. :(
We have several Windoze servers running SQL, IIS, and other services - all of which, we were able to find MIB's for and monitor via snmp very easily. We keep track an MANY aspects of these servers and log historically via our snmp clients.
We have recently been introducing many Linux servers and upon trying to monitor then in a similar fasion, I have found that several things just are not possible!
For exmaple, Apache is REALLY hard to monitor with SNMP. You have to custom compile with mod_snmp. Postfix... same situation, although I can't recall being able to monitor that at all with snmp.
I wish that were not the case. And ya, I know. A lot of this has to do with the specific package in question, not Linux, per se. Still, it reflects poorly on the OS for which is was designed.
At any rate, it has influenced our decisions about installing new Linux platforms
I wish it were not the case, but we WANT to use snmp!
People at my company regularly received 80 spam emails per day when I started (Exchange 2000). I promptly installed a Linux mail gateway with Postfix as the MTA, Postgrey and Spamassasin. The very next day I had people coming to ME, asking me if I had changed soemthing on the mail server, because they only had a few messages in thier mailbox, rather than thier usaual dozens.
I'm telling you, you cannot count on AOL, gMail or whoever to control spam, and in my opinion, filters at the client level are stupid. You STILL recieve the spam, no matter what folder it goes to!! Host-based filtering is the ONLY way to go these days.
Works like a CHAMP too! Dns checks, RBL checks, destination controls, greylisting - and the last line of defense, Spamassasin for the heuristics scanning. After all that, there is no need to have client level filtering!
Btw, if you have never heard of Postgrey, it works AWESOMELY!
http://isg.ee.ethz.ch/tools/postgrey/
Contact me if you want some config examples, I'd be happy to help!
-Ponga
Dude... I wish I had some mod points to give :-D
... Good job, because if we were around we would instantly disintegrate into massless particles of light.
S R/light_mass.html
Not sure where this actual quote came from, but it may be incorrect. Light (photons) could ideed have mass, as I believe it does.
http://math.ucr.edu/home/baez/physics/Relativity/
Oh, and it's "you're set," not "your set."
;-)
Hey, your right!
After doing some research, I found out that MySpace lives in a single Class C IP block, (This may change over time, but as of now this info is accurate.) Simply add this to your firewall rules to block and your set! MySpace IP Block: ------------------ 63.208.226.0/24 - -Ponga
I'll be looking forward to that big apt-get!
You mean, aptitude, right?
I just installed 3.1 and to my dismay, apt-get is no where to be found. Yes, yes, aptitude is better, blah blah... but come on, I had been typing 'apt-get' for years!?
#alias apt-get=`aptitude`
Ahh, thats better!
How true! I had been running Woody for years, then Sarge (stable) came out so, what the hell, I jumped on board... just last week! Now I have to deal with Etch!! Ah, Debian, your killing me with these 'regular' release scheduals!
Here is how I attack trying to play a video file or DVD on Linux:
:-(
First choice: VLC
Second Choice: Mplayer
Third Choice: Xine
Fourth Choice: Boot into Windoze
If you want a road map of whats going to happen to TV, take a look at radio.
Sirius and XM are becoming more popular and from what I've seen, public radio is gaining an audience. People are abandoning commercial radio because now there are alternatives! The same will happen to TV, take note!
-Ponga
In general, I would expect people to buy a CHEAP pc and as soon as they get home with it, borrow thier friends or relatives Windows XP disk to install over whatever OS the computer came with... so with these boxes being based on MIPS, those folks are out of luck! This will be an interesting!
I really love facebook, the ability to find anyone at my school if I need to contact them or want to know more about them is great
Hey, here's another idea... you also could actually just stop them and introduce yourself and ask to know more about them!
// end sarcasm