Re: [ilugd] [OT] Why would someone put a TTL of 60s on a DNS record ?
On Jan 11, 2008 9:01 PM, Vipul Mathur [EMAIL PROTECTED] wrote: On Jan 11, 2008 4:55 PM, आशीष शुक्ल Ashish Shukla [EMAIL PROTECTED] wrote: I just found that www.intel.com has TTL of 60s, and in my view TTL of 60s should be suitable for records with frequently changing IPs, e.g. for DNS records maintained by DynDNS users who're on dynamic IPs. Hmm...? Note in your dig trace that the 60s TTL is for the CNAME record pointing www.intel.com to www.intel.com.edgesuite.net. Now edgesuite.net is an akamai service AFAIK. The purpose of keeping a very short TTL, as far as I see, is to prevent downstream DNS servers from caching it for a long time (obviously). This would typically be done if the record gets updated frequently... but hey, akamai is known to do weirdly interesting stuff! disclaimer I work for Akamai and am not speaking for my employer Blah blah blah /disclaimer Akamai has a globally distributed server network. It maps users to these servers depending on a variety of factors such as geographic location, network latency, server load etc. One of the ways this works is that by recomputing the DNS entries based on these. As such factors are highly variable, the TTL is small so that users are mapped to the most optimal server everytime. Shameless plug follows :-) I agree with Vipul. Akamai does fairly interesting stuff. -- Vinayak -- http://www.linkedin.com/in/VinayakH ___ ilugd mailinglist -- ilugd@lists.linux-delhi.org http://frodo.hserus.net/mailman/listinfo/ilugd Next Event: http://freed.in - February 22/23, 2008 Archives at: http://news.gmane.org/gmane.user-groups.linux.delhi http://www.mail-archive.com/ilugd@lists.linux-delhi.org/
Re: [ilugd] Removing date mark from pictures
On 10/11/07, Sudev Barar [EMAIL PROTECTED] wrote: I went to Ladakh and Kashmir and took lot of pictures. Unfortunately I wrongly set the date now all the pictures have date imprinted on them wrongly. Is there any tool to remove the dates? I did read some where that this information is stored alongwith the picture and is modifiable. In the meanwhile googling continues. There is exif tool which is pretty good for modifying EXIF data (where all the metadata is stored). But I don't think it can be used to remove the imprints of the date on the photo. It is free software and available under the Perl Artistic License. http://www.sno.phy.queensu.ca/~phil/exiftool/ -- Vinayak ___ ilugd mailinglist -- ilugd@lists.linux-delhi.org http://frodo.hserus.net/mailman/listinfo/ilugd Next Event: http://freed.in - September 28-29, 2007 Archives at: http://news.gmane.org/gmane.user-groups.linux.delhi http://www.mail-archive.com/ilugd@lists.linux-delhi.org/
Re: [ilugd] which debian ?
On 11/10/05, Sandip Bhattacharya [EMAIL PROTECTED] wrote: Which commonly used packages does Freebsd have in it ports collection that Debian/Ubuntu doesnt? You can find more info here - http://www.freebsd.org/ports/ Also, can anyone point me to any references which have performance measurements of Freebsd versus Linux? Till now I have only heard about FreeBSD being better in performance than Linux. Anyone has any links to tests which have proved to you that it is better? Most of them are old now since the release of Linux 2.6 and FreeBSD 6.0 recently. You can google for performance tests. -- www.livejournal.com/users/vinayakh/ ___ ilugd mailinglist -- ilugd@lists.linux-delhi.org http://frodo.hserus.net/mailman/listinfo/ilugd Archives at: http://news.gmane.org/gmane.user-groups.linux.delhi http://www.mail-archive.com/ilugd@lists.linux-delhi.org/
Re: [ilugd] which debian ?
On 11/10/05, Sandip Bhattacharya [EMAIL PROTECTED] wrote: On Thursday, 10 Nov 2005 4:49 pm, Vinayak Hegde wrote: On 11/10/05, Sandip Bhattacharya [EMAIL PROTECTED] wrote: Which commonly used packages does Freebsd have in it ports collection that Debian/Ubuntu doesnt? You can find more info here - http://www.freebsd.org/ports/ I know where the ports are. I just wanted to know which packages do people commonly find missing in Linux that Freebsd has. You need to phrase your questions better then. Commonly used differs from person to person. An network admin's commonly used tools will be different from a kernel developers or a graphic designers. Also, can anyone point me to any references which have performance measurements of Freebsd versus Linux? Till now I have only heard about FreeBSD being better in performance than Linux. Anyone has any links to tests which have proved to you that it is better? Most of them are old now since the release of Linux 2.6 and FreeBSD 6.0 recently. You can google for performance tests. Again, I can google it myself. But I just wanted to know that how much do people saying FreeBSD better than Linux, actually base it on facts that they have actually read or seen themselves. Depends on what you want to do with it? Do you want to use it as a desktop ? Do you want to use it as a mail-server/router ? Define the problem better. Define the workload of the machine. May I point you to http://www.catb.org/~esr/faqs/smart-questions.html :) Cheers Vinayak H ___ ilugd mailinglist -- ilugd@lists.linux-delhi.org http://frodo.hserus.net/mailman/listinfo/ilugd Archives at: http://news.gmane.org/gmane.user-groups.linux.delhi http://www.mail-archive.com/ilugd@lists.linux-delhi.org/
