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How to: Linux flush or remove all iptables rules
Here is small script that does this. Debian or Ubuntu GNU/Linux does not comes with any SYS V init script (located in /etc/init.d directory) . You create a script as follows and use it to stop or flush...
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How do I install Oracle database server on CentOS Enterprise Linux 5?
This is a nice and step by step guide for installing Oracle database server under CentOS Linux. The guide has plenty of screenshots: During OS install both GNOME and KDE desktops were selected as well...
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Force BIND DNS Server to take full advantage of Dual Core Multiple Intel /...
One of my client runs dedicated NS1 and NS2 to host more than 3000+ domains. Recently they upgraded their servers to latest Dual Core Dual AMD server with CentOS 5.0 and BIND server. By default BIND /...
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How to: Upgrade VMWARE Server under Linux
Build 56528 is a release build of VMware Server 1.0.4. It is a maintenance bug fix release to address security issues. Upgrading VMWare server is a piece of cake under Redhat Enterprise Linux / CentOS...
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How to: Install and Setup XEN Virtualization Software on CentOS Linux 5
Xen is a free open source software virtual machine monitor for Intel / PowerPC architectures. It is software that runs on a host operating system and allows several guest operating systems to be run on...
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CentOS / Redhat Enterprise Linux Setup Lighttpd in Chroot Jail
Many people asked me to write about setting up Lighttpd under CentOS or RHEL 5 Linux using chroot() call. The instructions are almost same but you need to make little modification as compare to Debian...
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Lighttpd / Apache : Run Xcache in Chrooted Jail
Recently I wrote about installing and running Xcache under Red hat enterprise Linux and CentOS Linux. By default Xcache use /dev/zero for caching. All you have to do is create /dev/zero in chrooted...
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CentOS 5 Apache 2.2.3 files failing to download or corrupted download file issue
Recently, I noticed something strange about Apache 2.2.3 version running on CentOS Linux 5 64 bit version. We have centralized NFS server and all 3 web server load balanced using hardware front end...
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CentOS 4 / Redhat Enterprise Linux 4 iSCSI Installation and Configuration (...
Explains how to setup iSCSI under CentOS / Red Hat Enterprise Linux (ES) 4 server.Read post: "CentOS 4 / Redhat Enterprise Linux 4 iSCSI Installation and Configuration ( iscsi initiators )"
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How To Upgrade CentOS Linux To Version 5.2
CentOS Linux 5.2 has been released and available for immediate update via yum command. You can also download DVD / ISO images.Read post: "How To Upgrade CentOS Linux To Version 5.2"
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dnsmasq Dns Cache Software Security Update To Fix DNS Spoofing Attacks
Red Hat has shipped a new version of its dnsmasq caching software to plug source UDP port bug. This could have made DNS spoofing attacks (CVE-2008-1447) easier. Dnsmasq is lightweight ultra fast dns...
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Postfix Mail Server Security Update [moderate security impact]
Postfix MTA updated to fix security vulnerabilities such as incorrectly checks the ownership of a mailbox. In some configurations, this allows for appending data to arbitrary files as root. This...
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Red Hat / CentOS Linux 5.x: Perl Performance Bug Fix Available
Perl version supplied with RHEL has bug, which will result code running at least 100 times slower than expected speed. Now, Red Hat updated perl packages that fix a performance issue. Earlier only...
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VMWare Image Clone Problem: eth0 Renamed As eth1
After cloning a VMWare image I had noticed that my CentOS Linux server renamed eth0 as eth1, eth1 as eth2 and so on. This is due to wrong or duplicate mac address. To fix this problem login to your...
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Download CentOS 6 CD / DVD ISO
CentOS Linux version 6 has been released. It is a community-supported operating system based on Red Hat Enterprise Linux (RHEL) version 6. CentOS Linux is considered as the most popular Linux...
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