Posts by: ckaraca
You are reading this article, most probably you faced trouble booting your Linux. Follow the steps below to fully chroot into your system as you booted regularly. Please note that we offer you to take a disk clone before doing anything in your boot configuration. To do so, you can use dd or dd_rescue to [...]
Continue Reading →If you want to show console output from a Serial device such as RS-232 interface, you need to make minor modifications in pfsense 2.0 distro.
Switch to shell by pressing 8 from the pfsense console menu and edit the file /boot/loader.conf by typing:
vi /boot/loader.conf
Add the below lines to the file after pressin “i” [...]
Continue Reading →In the beginning of the year 2011, we decided to apply IPv6 configuration to our data center (VeriTeknik) and requested our IPv6 block from RIPE. RIRs give out /32 blocks to LIRs at the first assignment.
The Preperation Steps Request your IPv6 Addresses from your RIR or LIR Add IPv6 Route [...]
Continue Reading →Using LINUX as a server?, if so please read below
Most of the Linux distros released as CD or DVD media for installing and if you install Linux with defualy options you get a nice user interface and a bunch of applications that you will never use in a server environment. Also default [...]
Continue Reading →Running /tmp partition makes great performance enhancements as soon as you store temprorary information, please be aware that you mustn’t store valuable data as a reboot will flush all the data inside.
/tmp & /var/tmp runs faster from RAM, to do so:
vi /etc/fstab Switch to Insert mode by pressing I [...]
Continue Reading →Vi is the one of the mostly used editor in Linux via terminal. In most cases where Linux is used as a server operating system, admins use the terminal, where GUI uses more system resources & network bandwidth. Since Vi is used from the terminal, the lack of GUI force the user to learn function [...]
Continue Reading →Updating RedHat & CentOS with Yum
If you are using RedHat & its clones like CentOS or CloudLinux etc. you can use Yum or up2date to upgrade your current system.
Please note that is you have a RedHat Enterprise Linux Subscription we offer you to use the command up2date, to upgrade your server with [...]
Continue Reading →You can use du command to see the folder size in LINUX including subfolders.:
With du
du -h # including subfolders (-h means human readable format in MB, GB or TB)
If you want to exclude subfolders, type:
du -h –max-depth=1
If you want to know a specific folders size (easy to remember) type:
[...]
Continue Reading →In default LINUX installation IPv6 is enabled. IPv6 might use system resources.
Run this command as root:
echo “alias net-pf-10 off” >> /etc/modprobe.conf echo “alias ipv6 off” >> /etc/modprobe.conf
You need to restart your server after this command.
Continue Reading →LINUX Version Info
To learn the architecture and kernel version info use the shell command below:
less /etc/redhat-release
The output will be like
CentOS release 5.6 (Final)
To learn the architecture & kernel version:
uname -a
you can use the command above, the last numbers marked as red below is your architecture:
Linux [...]
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