There is a ton of reasons why you would use SSH keys to log into your Linux/Unix systems automatically : – Faster than entering password – More secure than password – Automate login for backup using Rsync – And a lot more ! Actually, this is pretty easy to do – so let’s start generating… Read More »
To install VMware Tools from the ESX repository on RedHat/CentOS Linux guests using YUM, you need first to install the public key : rpm –import http://packages.vmware.com/tools/keys/VMWARE-PACKAGING-GPG-RSA-KEY.pub [Updated 06/03/12 : key URL has changed. Old location : http://packages.vmware.com/tools/VMWARE-PACKAGING-GPG-KEY.pub)] Now, you need to create the repository file located in /etc/yum.repos.d : vi /etc/yum.repos.d/vmware-tools.repo And then, paste the… Read More »
Experiencing this error on Dell rack mount server? PCIe Training Error: Slot X (or Embedded I/O Bridge device X) System Halted Try removing any add-in card and boot the server. If the server is booting correctly, then it’s probably the add-in card! If the problem persist, try to completely remove the riser card. Now it should… Read More »
Got this error trying to adjust time on a VPS from the host node? [root@server ~]# vzctl set 111 –capability sys_timen –save Unable to set capability on running container WARNING: Some of the parameters could not be applied to a running container. Please consider using –setmode option There is two possible solutions : 1. Stop… Read More »
Here are the few steps to generate the private key, certificate signed request, self-signed certificate and how to get rid of the passphrase request when starting you’re application . Okay, let’s start. Go to the directory you want to store you’re certificate stuff. This example will assume you’re common name (aka : host name) will… Read More »
Getting this error trying to send e-mail with Postfix MTA? postdrop: warning: unable to look up public/pickup: No such file or directory Simply do the following as root : mkfifo /var/spool/postfix/public/pickup And then, restart the service : service postfix restart
Get this error running “wget” on FreeBSD 8.2? /libexec/ld-elf.so.1: Shared object “libz.so.6” not found, required by “wget” Simply go to the library directory and create a symbolic link like this to get it working : cd /usr/lib/ ln -s libz.so libz.so.6
This error occur when the virtual floppy auto install did not unmounted properly. Simply do the following : 1. Shutdown the virtual machine 2. Disconnect the virtual floppy drive or set the drive to use the system floppy instead of image 3. Then, boot you’re guest and try again to install VMware Tools If theses… Read More »
First, avoid any problem by getting two identical hard drive (or at least, same size and speed at least if not from same manufacturer). This tutorial assume both your hard disk are “da0” and “da1“. If you don’t know you’re devices name, simply use “dmesg” or “df -h” command to find out. First, let’s temporary… Read More »
To search and replace across multiple text file on a Linux/Unix system, use the following command : find . -name “*.extension” -print | xargs sed -i ‘s/search_for_text/replace_with_text/g’ So, as example, let’s assume you want to replace an IP address in multiple Bind zone file (using the extension .hosts) and replace IP address 10.10.1.1 for 192.168.1.1… Read More »