Core dumps are often used to diagnose or debug errors in Linux or UNIX programs. Core dumps can serve as useful debugging aids for sys admins to find out why Application like Lighttpd, Apache, PHP-CGI or any other program crashed. Many vendors and open source project author requests a core file to troubleshoot a program. A core file is generated when an application program abnormally terminates due to bug, operating system security protection schema, or program simply try to write beyond the area of memory it has allocated, and so on. This article explains how to turn on core file support and track down bugs in programs.
Canonical the makers of Ubuntu about to introduce a new desktop notification system proposal. New changes should improve the usability of the Linux desktop including desktop notification system for both GNOME and KDE. From the Mark Shuttleworth blog:
The key proposals we are making are that:
* There should be no actions on notifications.
* Notifications should not be displayed synchronously, but may be queued. Our implementation of the notification display daemon will display only one notification at a time, others may do it differently.
That’s pretty much it. There are some subtleties and variations, but these are the key changes we are proposing, and which we will explore in a netbook device with a partner, as well as in the general Ubuntu 9.04 release, schedule gods being willing.
I think new changes looks more like Growl system used in Mac OS X. You can read more about proposal including mockup video that shows new notification system here.
An updated autofs package that fixes a bug is now available under RHEL 4.x server and desktop systems.
Q. My sendmail service is running under Linux and whenever I try to telnet it from other LAN IP, it gives connection refuse error. If I connect it from localhost it accept connection. I can only send mail from my server only. How do I force sendmail to accept mail from other hosts/LAN ips? A. [...]