12 articles tagged "redhat"

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• How To Patch Running Linux Kernel Source Tree

  Yesterday, I wrote about a serious Linux kernel bug and fix. However, few readers like to know about patching running Linux kernel. Patching production kernel is a risky business. Following procedure will help you to fix the problem.
  Step # 1: Make sure your product is affected
  First find out if your product is affected by reported [...]

• Install PHP Pear Mail / SMTP package on CentOS / Red Hat Enterprise Linux

  Recently I’ve noticed that Redhat removed support for following php pear packages:
  a) NET/SMTP : An implementation of the SMTP protocol
  b) Mail : Class that provides multiple interfaces for sending emails
  c) Net/Socke : Network Socket Interface

  The simplest solution is downloading and installs these files from php pear repo.
  Step # 1: Download files
  Use wget command to [...]

• 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 Linux version 5.0.
  Please note that following instructions are tested on RHEL 4.5, 5.0 and CentOS Linux 5.0 only. You can [...]

• Linux rpm command no such file or directory error and solution

  New Linux user often get this error. Let us say you haved downloaded the RPM file from net and saved to /tmp, you may get error - no no such file or directory - when the file is really downloaded and ls command can show the same.
  Answer is pretty simple rpm command needs the full [...]

• Howto: Add a new yum repository to install software under CentOS / Redhat Linux

  CentOS / Fedora Core / RHEL 5 uses yum for software management. Yum allows you to add a new repository as a source to install binary software.
  Understanding yum repository
  yum repository configured using /etc/yum.conf file. Additional configuration files are also read from the directories set by the reposdir option (default is [...]

• Linux Postfix mail server SSL certificate installations and configuration

  One of our regular reader asks :
  How do I generate a CSR certificate for CA, to use with my postfix mail server? How do I install and configure postfix mail server SSL certificate under Redhat enterprise Linux 5 or CentOS 5 server?

  Procedure for creating a CSR on postfix MTA is just like web server. [...]

• How much RAM does my Ubuntu / Fedora Linux desktop PC have?

  Here is one of the most frequently asked questions from my mailbag:
  Hey I need to know how much ram memory I have in my Ubuntu Linux computer. Under Windows XP I can find out memory by visiting Start > Control Panels > System in control panel. So how do I find out RAM information under [...]

• Which Linux Desktop Distribution is the best for me?

  Almost all new Linux wanna be guru (read as users who want to switch to Linux) asks a question:
  I want to switch to Linux completely from Windows XP SP2. Which Linux version will be best - Redhat, SuSE, or other? I use my PC for:
  Browsing Internet
  Watching DVD / MP3
  Writing CD/DVD
  I’m also willing to spend a [...]

• Mount a Linux filesystem on a SAN from multiple nodes at the same time

  If you try to mount an ext3 Linux filesystem on a SAN from multiple nodes at the same time you will be in serious deep trouble.
  SAN based storage allows multiple nodes to connect to same devices at the same time. Ext3/2 are not cluster aware file system. They can lead to a disaster such as [...]

• No Route to Host error and solution

  I am getting error that read as No Route to Host. I am trying to ping my ISP gateway as well as DNS server but I am getting this error. How do I solve this problem?
  This problem indicate networking conflicts or some sort of networking configuration problem.
  Here are things to check:

  Can you ping to your [...]

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