Archivo de la categoría: CentOS

SendMail

$ sudo vim /etc/mail/sendmail.mc Sendmail slow to start It was all about the hostname for some reason. I was using aFQDN in the host file but for some reason sendmail couldn’t resolvethat name. I put it back to localhost and everything seems to have goneback to normal. «Open Mouth, Insert Foot and Chew!»

Java Centos 64BIt cd /

Well I have Sun’s JDK installed, so I will provide instructions on this.Download the jdk-6u1-linux-amd64-rpm.bin file: http://java.sun.com/javase/downloads/index.jspWhen the download is completed and from where the file resides type as root type: chmod u+x jdk-6u1-linux-amd64-rpm.bin./jdk-6u1-linux-amd64-rpm.bin Press the space a number of times and answer yes at the end. Next you will want to follow the instructions… Leer más »

hp high performance mouse

   1:hpmouse                ########################################### [100%]Please read the Licence Agreement for this software at         /opt/hp/hpmouse/licenseBy not removing this package, you are accepting the termsof the «HP Proliant Essentials Software End User License Agreement».**********  NOTICE *************Please follow the steps below to configure this system.cd /opt/hp/hpmouseRun «sh ./hpmouse activate»… Leer más »

compat-libstdc++-33–

compat-libstdc++-33–   sudo ./install Loading…/home/user/rpms/dpx/v3.10-sp4/lin/x86_64/dplincin: error while loading shared libraries: libstdc++.so.5: cannot open shared object file: No such file or directory  $ yum install compat-libstdc++-33–

[Xen-users] Slow network solved.

The solution was as simple as «ethtool -K eth0 tx off» on the domU’s and «ethtool -K eth0 tx on» on the dom0’s. After turning the tx checksumming off the network speed is faster and doesn’t seem to be dropping packets at all anymore. I hope this saves people some time and I was not… Leer más »

Virtualization Guide

http://www.redhat.com/docs/manuals/enterprise/RHEL-5-manual/Virtualization-en-US/index.html  

Partition Xen Server

Install Linux OS and Additional Packages Most of the Linux installation is straightforward, except for the disk configuration. This is explained in some detail. 1. Boot the first Linux CD/DVD and start the installation. 2. The installation procedure will help you partition the disk. We suggest that the disk be partitioned using LVM. Put Linux… Leer más »

Quick Tip: Send Ctr + Alt + Del to XEN Vps / Guest os

  If you hit CTRL+ALT+Delete your host will go down under CentOS Linux 5.x. The solution is hit CTRL key thrice. Now it will disable CTRL+ALT+Del for host. Next just hit alt+del to complete guest CTRL+ALT+Del cycle. Alternatively, you can type the following on host to shutdown vps:xm shutdown myGuestVpsOsName

Linux Disable the Ctrl-Alt-Delete shutdown keys

On a production system it is recommended that you disable the [Ctrl]-[Alt]-[Delete] shutdown. It is configured using /etc/inittab (used by sysv-compatible init process) file. The inittab file describes which processes are started at bootup and during normal operation. You need to open this file and remove (or comment it) ctrlaltdel entry. Ctrlaltdel specifies the process… Leer más »