http://www.cyberciti.biz/tips This is a Linux sys admin journal by Vivek about sys admin work, Linux tips & tricks, hacks, news and more. Fri, 03 Feb 2012 22:45:35 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 http://www.cyberciti.biz/tips/bind-dynamic-update-dos.html http://www.cyberciti.biz/tips/bind-dynamic-update-dos.html#comments Wed, 29 Jul 2009 15:47:12 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=5570 BIND 9 is an implementation of the Domain Name System (DNS) protocols. named daemon is an Internet Domain Name Server for UNIX like operating systems. Dynamic update messages may be used to update records in a master zone on a nameserver. When named receives a specially crafted dynamic update message an internal assertion check is triggered which causes named to exit. An attacker which can send DNS requests to a nameserver can cause it to exit, thus creating a Denial of Service situation. configuring named to ignore dynamic updates is NOT sufficient to protect it from this vulnerability. This exploit is public. Please upgrade immediately.]]> http://www.cyberciti.biz/tips/bind-dynamic-update-dos.html/feed 7 http://www.cyberciti.biz/tips/oracle-to-purchase-sun-microsystems-for-74b.html http://www.cyberciti.biz/tips/oracle-to-purchase-sun-microsystems-for-74b.html#comments Tue, 21 Apr 2009 10:10:39 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=4622 Look like combined company will give a tough time to both IBM and HP. Sun Microsystems and Oracle Corporation announced yesterday that they have entered into a definitive agreement under which Oracle will acquire Sun common stock for a total of $7.4 billion or $5.6 billion net of Sun's cash and debt.]]> http://www.cyberciti.biz/tips/oracle-to-purchase-sun-microsystems-for-74b.html/feed 3 http://www.cyberciti.biz/tips/linux-virtualization-software.html http://www.cyberciti.biz/tips/linux-virtualization-software.html#comments Wed, 31 Dec 2008 15:00:59 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=4215 Virtualization is the latest buzz word. You may wonder computers are getting cheaper every day, why should I care and why should I use virtualization? Virtualization is a broad term that refers to the abstraction of computer resources such as:

1. Platform Virtualization
2. Resource Virtualization
3. Storage Virtualization
4. Network Virtualization
5. Desktop Virtualization

This article describes why you need virtualization and list commonly used FOSS and proprietary Linux virtualization software. ]]> http://www.cyberciti.biz/tips/linux-virtualization-software.html/feed 24 http://www.cyberciti.biz/tips/linux-swap-space.html http://www.cyberciti.biz/tips/linux-swap-space.html#comments Wed, 19 Nov 2008 08:50:49 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=3586 Linux and other Unix-like operating systems use the term "swap" to describe both the act of moving memory pages between RAM and disk, and the region of a disk the pages are stored on. It is common to use a whole partition of a hard disk for swapping. However, with the 2.6 Linux kernel, swap files are just as fast as swap partitions. Now, many admins (both Windows and Linux/UNIX) follow an old rule of thumb that your swap partition should be twice the size of your main system RAM. Let us say I've 32GB RAM, should I set swap space to 64 GB? Is 64 GB of swap space really required? How big should your Linux / UNIX swap space be? ]]> http://www.cyberciti.biz/tips/linux-swap-space.html/feed 58 http://www.cyberciti.biz/tips/download-64-bit-linux-flash-player.html http://www.cyberciti.biz/tips/download-64-bit-linux-flash-player.html#comments Mon, 17 Nov 2008 17:09:18 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=3566 Finally, Adobe has released 64 bit preview version of its most popular flash player today for Linux / Solaris UNIX operating system. There is no Windows or Mac 64 bit version exists but Linux / UNIX is the first OS to get it. Indeed a good news; now we have both Java and Flash plyaer for 64 bit platforms. No need to use nspluginwrapper.]]> http://www.cyberciti.biz/tips/download-64-bit-linux-flash-player.html/feed 10 http://www.cyberciti.biz/tips/linux-unix-commands-cheat-sheets.html http://www.cyberciti.biz/tips/linux-unix-commands-cheat-sheets.html#comments Wed, 05 Nov 2008 18:17:26 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=3380 Cheat sheet act as a reference tool which provides cut and paste kind of commands to complete a specific task. I often recommend following set of best cheat sheets to students and IT professionals. It include Linux / UNIX command and shell scripting.]]> http://www.cyberciti.biz/tips/linux-unix-commands-cheat-sheets.html/feed 19 http://www.cyberciti.biz/tips/linux-community-afraid-of-opensolaris.html http://www.cyberciti.biz/tips/linux-community-afraid-of-opensolaris.html#comments Mon, 20 Oct 2008 13:17:52 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=3114 It's about time someone wrote this article. I know the headline is a little bit provoking. But when you think about some comments from Linux proponents you could think so.]]> http://www.cyberciti.biz/tips/linux-community-afraid-of-opensolaris.html/feed 4 http://www.cyberciti.biz/tips/is-sun-solaris-on-its-deathbed.html http://www.cyberciti.biz/tips/is-sun-solaris-on-its-deathbed.html#comments Thu, 25 Sep 2008 08:23:48 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=2955 Jim Zemlin is executive director of the Linux Foundation claims Solaris UNIX is irrelevant and Linux is future. Is Sun Solaris on its deathbed? Linux backers claim Solaris is irrelevant; Sun of course disagrees.]]> http://www.cyberciti.biz/tips/is-sun-solaris-on-its-deathbed.html/feed 10 http://www.cyberciti.biz/tips/when-the-bourne-shell-found-its-identity.html http://www.cyberciti.biz/tips/when-the-bourne-shell-found-its-identity.html#comments Fri, 30 May 2008 12:30:00 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=2330 http://www.cyberciti.biz/tips/when-the-bourne-shell-found-its-identity.html/feed 0 http://www.cyberciti.biz/tips/hcl-for-opensolaris.html http://www.cyberciti.biz/tips/hcl-for-opensolaris.html#comments Thu, 22 May 2008 17:41:51 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=2311 http://www.cyberciti.biz/tips/hcl-for-opensolaris.html/feed 0 http://www.cyberciti.biz/tips/download-opensolaris-unix-cd-iso-images.html http://www.cyberciti.biz/tips/download-opensolaris-unix-cd-iso-images.html#comments Mon, 05 May 2008 14:12:06 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=2263 http://www.cyberciti.biz/tips/download-opensolaris-unix-cd-iso-images.html/feed 0 http://www.cyberciti.biz/tips/opensolaris-unix-nas-storage-server.html http://www.cyberciti.biz/tips/opensolaris-unix-nas-storage-server.html#comments Thu, 01 May 2008 17:10:47 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=2252 http://www.cyberciti.biz/tips/opensolaris-unix-nas-storage-server.html/feed 1 http://www.cyberciti.biz/tips/sun-looks-to-free-up-the-rest-of-java.html http://www.cyberciti.biz/tips/sun-looks-to-free-up-the-rest-of-java.html#comments Wed, 23 Apr 2008 22:07:06 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=2227 http://www.cyberciti.biz/tips/sun-looks-to-free-up-the-rest-of-java.html/feed 0 http://www.cyberciti.biz/tips/mysql-51.html http://www.cyberciti.biz/tips/mysql-51.html#comments Sat, 19 Apr 2008 10:29:25 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=2216 http://www.cyberciti.biz/tips/mysql-51.html/feed 0 http://www.cyberciti.biz/tips/sun-touts-big-plans-for-opensolaris.html http://www.cyberciti.biz/tips/sun-touts-big-plans-for-opensolaris.html#comments Wed, 16 Apr 2008 17:22:57 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=2203 http://www.cyberciti.biz/tips/sun-touts-big-plans-for-opensolaris.html/feed 0 http://www.cyberciti.biz/tips/x86-linux-server.html http://www.cyberciti.biz/tips/x86-linux-server.html#comments Wed, 19 Mar 2008 19:12:47 +0000 Vivek Gite http://www.cyberciti.biz/tips/sun-to-offer-ubuntu-linux-based-servers.html http://www.cyberciti.biz/tips/x86-linux-server.html/feed 0 http://www.cyberciti.biz/tips/sun-to-acquire-mysql-open-source-database.html http://www.cyberciti.biz/tips/sun-to-acquire-mysql-open-source-database.html#comments Wed, 16 Jan 2008 13:49:23 +0000 Vivek Gite http://www.cyberciti.biz/tips/sun-to-acquire-mysql-open-source-database.html http://www.cyberciti.biz/tips/sun-to-acquire-mysql-open-source-database.html/feed 2 http://www.cyberciti.biz/tips/zfs-for-mac-osx-source-code-available.html http://www.cyberciti.biz/tips/zfs-for-mac-osx-source-code-available.html#comments Mon, 14 Jan 2008 04:34:30 +0000 Vivek Gite http://www.cyberciti.biz/tips/zfs-for-mac-osx-source-code-available.html http://www.cyberciti.biz/tips/zfs-for-mac-osx-source-code-available.html/feed 3 http://www.cyberciti.biz/tips/download-opensolaris-developer-preview-iso.html http://www.cyberciti.biz/tips/download-opensolaris-developer-preview-iso.html#comments Thu, 01 Nov 2007 14:37:40 +0000 Vivek Gite http://www.cyberciti.biz/tips/download-opensolaris-developer-preview-iso.html http://www.cyberciti.biz/tips/download-opensolaris-developer-preview-iso.html/feed 0 http://www.cyberciti.biz/tips/monitor-unix-user.html http://www.cyberciti.biz/tips/monitor-unix-user.html#comments Wed, 24 Oct 2007 03:34:03 +0000 Vivek Gite http://www.cyberciti.biz/tips/monitor-unix-user.html http://www.cyberciti.biz/tips/monitor-unix-user.html/feed 0