But it's running multicast to unless you have a HIGH end switch or a long chain of multiple switches all receivers get the packet at nearly the same time as multicast would go out via port flooding to all ports simultaniously. If your particualry worried about it put all the playback units on the same hub this will insure they all receive the packet at nearly the same time (cable length etc varying this) as they are all the same hardware they should all proccess the packet and play it back with the same delay.
Interesting problem. With HIP radio we broadcasted (and later multicasted) mp3 frames over ethernet and found the very interesting problem that the clients were playing the audio ahead of the server. We used the timing in mpg123 on the server to time the sending out of the frames (nothing like a sound card buffer to keep those mp3 frames in check) but clients (even on comparable hardware) got ahead of the server in audio. I wonder whether this thing has the same problem, but since the data 'on the network' is in a different format I guess it will work out better.
Worth 1000 words more is that cool-jokes.com blocks external links to images on their sites and responds with a 403 page.
Which had, on my first try, the ad..
You will not believe it..
Your computer is broadcasting an IP address!
Somewhat stupid is that cool-jokes.com forgot to tell on that page what the error is or why you may be getting it during the plastering with ads and affiliate links.
Did you editors not read the comment in the last story? They're running on an emergency setup, and *specifically* requested that their new network *not* be linked to by slashdot.
Did you read this story, then ?
The normal connections are back at the same speed as before the fire. And since UncleH is quite involved with the network around utwente he is perfectly able to tell whether the servers can take a slashdotting again.
As I remember, Google's ranking algorithm takes into account both the number of other sites that link to you AND the number of people who have historically clicked on a particular link for a given combination of search keywords.
This is not technically possible, unless Google used a clickthrough system for each link, which it does not.
From time to time it does. I have seen all searchresults link through a redirector at google.
Not very often, I have seen it happen twice so far.
What prompted you to leave NASA ?
on
Ask Donald Becker
·
· Score: 5, Interesting
That is the one thing I'd like to know. You had (at least from the looks of it) a good career at NASA where the work on the clustering and the high-performance network drivers was sort of an added bonus to help you do your research work.
You changed to scyld where the main objective is to earn money from the application of high-performance computing. You still make all those drivers available and update them (many thanks for that) but the company also has to make money, you need to pay your meals and your home.
What made you change, and how do you feel about that change now it's been a few years.
The cool thing about GSM is that it's popular and lets you do 1 key thing that TDMA dose not.
Most GSM phones use identical simm cards to store configuration data, phone numbers etc...
Yes.. I really like that. I have now used 4 different phones with the same SIM card and never have to do anything else then flip the SIM to use a different phone. When the battery is dead at the wrong time or the phone breaks, you just move the SIM to a different phone and keep calling.
I recently visited the US and noticed that T-mobile is advertising there that 'their' mobile phones even work in Europe (small print: only the triple-band version).
But, Quallcomm is always shouting at the world (also in newsgroups) how much better their system is and that the world will eventually convert so this piece isn't too surprising.
I'd imagine that Amazon et al will be chaning their contractual terms specifically preventing this sort of behavior. The whole 'affiliate' program is dependant upon the warm and fuzzy feeling one gets by helping out a site you use, giving additional sales to Amazon.
I am in the amazon affiliate program with The Virtual Bookcase and I recently checked the whole operating agreement again. A search in that agreement gives:
you may not: [..] read, intercept, record, redirect, interpret, or fill in the contents of any electronic form or other materials
submitted to us by any person or entity;
This should be enough to boot any account from amazon that has transactions coming from altering affiliate links. I'm starting to wonder how much my site 'lost' due to things like this.
Almost anyone can sit at home, find songs they didn't create themselves, and edit them togother into a mix of hours of dance music. All clubs *really* need is a cd player
I haven't seen a cd player yet that reacts to the mood of the crowd. In my opinion, a good DJ works with the crowd, reacts to their responses to the music, gets them going and makes them relax again. Download a 'liveset' somewhere or listen to them on Shoutcast and you will notice that the DJ interacts with the crowd.
And the web is a publication medium when looked at it this way.
And consider writing something in a mailing list a publication too. A lot of mailing lists have archives in the strangest places.. sometimes because someone sets up an archive for private use but forgets to block that archive from prying eyes (and I don't mean blocking by not linking to it or putting a robots.txt there, but blocking with a good.htaccess file).
The best sample was when I did a websearch for my own name and found that someone had a web-archive of all private mail, including stuff I exchanged with him. Found some interesting bits there.. the archive is now gone.
I got reactions about my homepage that I am very open. I still limit what I write there to stuff that I want friends / enemies / employers to see.
And employers will see stuff. Some manager with way too much time on her/his hands might stumble on some page where you declare that you don't like stupid managers bugging you during the day and start whining at your boss. (been there, done that)
Seeing as most large web sites don't serve their database off of their web server, I don't think this would be a problem. The
code for the web page is served off of the server with that funky two-headed drive. Its read only to the internet, but the
dynamic content, for instance user posts here on slashdot, are retreived and stored on a separate, secure db server. Your
PHP, ASP, whatever, will call SQL queries to that server and not 'localhost' like (un)usual.
My best guess for securing order info gathered on a webserver is to store it in a database on a different server. The database username in the web scripts only has the privileges to call stored procedures owned by a different user to store data in the tables and cannot retrieve it. Oracle and Sybase offer this kind of privilege separation for example.
I was once busy compiling and tuning Apache for a very high profile website. It had to be really impossible to change the content of the site from remote and things had to be really tight. So as an aide in "security through obscurity" one of the things I did was disable the support for giving all kinds of details about the Apache version. I went one step further and changed the 'Apache' in the Server: header to 'KH-webserver'. 'KH' being a good description of what the site was for, and just coincidentally also being my initials. The idea was originally by someone else, and I liked it. Millions of visitors have had my initials sent to them. The hosting company did get e-mail from someone saying "this may say 'KH-webserver' but it is most probably an Apache".
Does that mean that if I link to slashdot which has an article that links to 2600 which links to DeCSS source (or something that is illegal in whatever country), or even any other convulted route that I am breaking the law?
I really don't see why you need a judge to make yourself look stupid in national and international publications when someone links directly to items on your website. When someone was linking to images on my website (where I pay for excess traffic) I did not call a lawyer. I went to the Apache website where the documentation about mod_rewrite has the excellent Apache 1.3 URL Rewriting Guide which has a cookbook entry (cut, paste, edit names) for exactly this, which can be easily adopted to stop 'deep linking'. Set up a nice 403 errorpage stating that linking directly to articles on your site is not allowed by policy and go on.
So far I've just used the DSL by setting up a few static routes. Load balancing would be great, but I'm not sure I want to pay
$400 for a black box. Correction -- I'm sure I do not want to pay $400 for a black box.
As a reply to this and others of the style "Why use such a device when you can run linux/bsd on a PC" or "Why use bsd/linux on a PC when you can use such a device". Both ways have their advantages. If you have a PC lying around anyway and want maximum control over the connection (including traffic shaping to fix that high ping time which has everything to do with large buffers in the speedtouch), go for the PC. I haven't seen one of those routerboxes yet where I can set up IP/GRE tunnels, extended firewalling and IPv6-in-IPv4 tunnels. If you want 'plug, play and works', go for the dedicated box.
What is the technique to limit the number of connections per IP? I looked for a couple of hours finding no appropriate configuration directive.
By default Apache has no options to limit this. When a webserver I deal with was visited by very antisocial 'download managers' taking 70(!) of Apaches server processes I searched for a module to fix this and found mod_limitipconn.c
which fixes this problem. The outgoing traffic of
the webserver more then doubled because the server
processes were available again to more visitors.
It's like MS. They make you pay protection money per computer, even if that computer doesn't have any MS software on it.
If you don't pay said protection money, they you have to face their audit.
<VOICE TYPE="italian">Nice set of computers you have here.. it would be a shame if something happened to them.. like a BSA audit.</VOICE>
Save Internet Radio is a great website, there's lots of information on the bills that are threatening internet radio, and what you can do to help stop them from passing legislation.
Now if they had a section for non-US based listeners it would be useful to me. I searched a lot but I'm not able to e-mail 'my' congres member as I'm lucky enough not to own one (aren't they expensive anyway?).
the BSA work on behalf of m$ and several other large software companies, not the government. if they came to my place and "asked" to inspect the ISP machines I work on I would refuse to let them in unless I was forcably removed. we have kit that services hospitals etc. no ways would I let those baboons in until lots of bits of papers had been signed by the appropriate ppl
Their 'fix' to this little problem is that they go with the police on a raid in the role of 'experts'. So the police do the raid (with the appropiate papers), bring their BSA 'expert' along who will then 'help identify' illegal software. And since the BSA has the legal right to act on behalf of the companies they represent (they have that bit covered very well) they also have the right to file a complaint of copyright infringment. Welcome to a brave new world.
This makes the baboons that wanted to inventory the computers at a previous workplace and tried to move a running server and wanted to reboot it to see the memory count almost look normal.
I'm trying to gather information about books on my site, The Virtual Bookcase. It grew out of trying to make a database of my own books and at the same time doing projects at work regarding books and information about books. I try to gather reviews but I'm ofcourse limited to reviews that people enter (please enter more reviews!) or reviews that I can reuse (such as those from amazon).
The amazon-affiliate linking helps recoup a bit of the costs (bandwidth, domain name) but the amount of time invested in the software for the site and the maintainance of the databases is of course never repayed. I do learn a lot in the process:) I'm now at a stage where I think the technical stuff can take care of itself for a while and I need to learn more about site design and usability and how to get other types of information on books such as press releases and general book news.
Sirius probably didn't plan ahead, and has a fixed transmitter on their Satellites to save a few bucks off the cost of the satellite...
Or they want some free publicity for their upcoming service. Digital radio sounds like one of those 'Do I really need this ?' things.Any publicity, even a filing with the FCC discussed everywere is good publicity.
My simple answer: those congress fellows think about e-mail as a way to advertise for their own re-election.
The not-so-simple answer: a correct definition of unsollicited e-mail is hard to make. At the receiving end it may look easy (based on contents) but think of the shades of grey when replying to a posting. Example: You ask for help on selecting an upgrade for your PC, you are doubting whether a Yoyodine tapedrive will work. One reply is "I use a Yoyodine tapedrive and it works great", one is "we at WeSellHardware sell a lot of Yoyodine tapedrives and customers are happy", one is "Special offer for Yoyodine tapedrives!". The middle one is both usefull information and a sort of advertisment. Is it spam ?
Depends on what the receiver feels about it.
Slashdot Mirror
This weekend I added DNS LOC entries for things like webcam.idefix.net. Going to the location make you end up in the view of the camera.
Maybe geocachers can use this.
Which had, on my first try, the ad..
You will not believe it..
Your computer is broadcasting an IP address!
Somewhat stupid is that cool-jokes.com forgot to tell on that page what the error is or why you may be getting it during the plastering with ads and affiliate links.
The normal connections are back at the same speed as before the fire. And since UncleH is quite involved with the network around utwente he is perfectly able to tell whether the servers can take a slashdotting again.
Funny, I was in this building a few times during the buildup and cleanup of HAL2001. Feels strange now.
You changed to scyld where the main objective is to earn money from the application of high-performance computing. You still make all those drivers available and update them (many thanks for that) but the company also has to make money, you need to pay your meals and your home.
What made you change, and how do you feel about that change now it's been a few years.
I recently visited the US and noticed that T-mobile is advertising there that 'their' mobile phones even work in Europe (small print: only the triple-band version).
But, Quallcomm is always shouting at the world (also in newsgroups) how much better their system is and that the world will eventually convert so this piece isn't too surprising.
you may not: [..] read, intercept, record, redirect, interpret, or fill in the contents of any electronic form or other materials submitted to us by any person or entity;
This should be enough to boot any account from amazon that has transactions coming from altering affiliate links. I'm starting to wonder how much my site 'lost' due to things like this.
And consider writing something in a mailing list a publication too. A lot of mailing lists have archives in the strangest places.. sometimes because someone sets up an archive for private use but forgets to block that archive from prying eyes (and I don't mean blocking by not linking to it or putting a robots.txt there, but blocking with a good .htaccess file).
The best sample was when I did a websearch for my own name and found that someone had a web-archive of all private mail, including stuff I exchanged with him. Found some interesting bits there.. the archive is now gone.
I got reactions about my homepage that I am very open. I still limit what I write there to stuff that I want friends / enemies / employers to see.
And employers will see stuff. Some manager with way too much time on her/his hands might stumble on some page where you declare that you don't like stupid managers bugging you during the day and start whining at your boss. (been there, done that)
We already had a week of sun this year. That was the summer. Today the weather forecast is that it will rain less then yesterday.
HIP'97 had a week of good weather. Hal2001 had rain.
I was once busy compiling and tuning Apache for a very high profile website. It had to be really impossible to change the content of the site from remote and things had to be really tight. So as an aide in "security through obscurity" one of the things I did was disable the support for giving all kinds of details about the Apache version. I went one step further and changed the 'Apache' in the Server: header to 'KH-webserver'. 'KH' being a good description of what the site was for, and just coincidentally also being my initials. The idea was originally by someone else, and I liked it. Millions of visitors have had my initials sent to them. The hosting company did get e-mail from someone saying "this may say 'KH-webserver' but it is most probably an Apache".
I really don't see why you need a judge to make yourself look stupid in national and international publications when someone links directly to items on your website. When someone was linking to images on my website (where I pay for excess traffic) I did not call a lawyer. I went to the Apache website where the documentation about mod_rewrite has the excellent Apache 1.3 URL Rewriting Guide which has a cookbook entry (cut, paste, edit names) for exactly this, which can be easily adopted to stop 'deep linking'. Set up a nice 403 errorpage stating that linking directly to articles on your site is not allowed by policy and go on.
This makes the baboons that wanted to inventory the computers at a previous workplace and tried to move a running server and wanted to reboot it to see the memory count almost look normal.
I'm trying to gather information about books on my site, The Virtual Bookcase. It grew out of trying to make a database of my own books and at the same time doing projects at work regarding books and information about books. I try to gather reviews but I'm ofcourse limited to reviews that people enter (please enter more reviews!) or reviews that I can reuse (such as those from amazon). The amazon-affiliate linking helps recoup a bit of the costs (bandwidth, domain name) but the amount of time invested in the software for the site and the maintainance of the databases is of course never repayed. I do learn a lot in the process :) I'm now at a stage where I think the technical stuff can take care of itself for a while and I need to learn more about site design and usability and how to get other types of information on books such as press releases and general book news.
The not-so-simple answer: a correct definition of unsollicited e-mail is hard to make. At the receiving end it may look easy (based on contents) but think of the shades of grey when replying to a posting. Example: You ask for help on selecting an upgrade for your PC, you are doubting whether a Yoyodine tapedrive will work. One reply is "I use a Yoyodine tapedrive and it works great", one is "we at WeSellHardware sell a lot of Yoyodine tapedrives and customers are happy", one is "Special offer for Yoyodine tapedrives!". The middle one is both usefull information and a sort of advertisment. Is it spam ? Depends on what the receiver feels about it.