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Openssl commands
OpenSSL is a cryptography toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) network protocols and related cryptography standards required by them. The openssl program is a […]
How to configure bonding on SuSE YaST Linux
Configure bonding on SuSE YaST Linux SuSE SLES 9’s networking configuration system does support bonding, however, at this writing, the YaST system configuration front end does not provide any means to work with bonding […]
Configuring Linux Bonding for High Availability
High Availability refers to configurations that provide maximum network availability by having redundant or backup devices, links or switches between the host and the rest of the world. The goal is to provide […]
Linux Bonding Options CentOS/RHEL 6
Options for the bonding driver are supplied as parameters to the bonding module at load time, or are specified via sysfs. Module options may be given as command line arguments to the insmod or […]
Linux bonding switch configurations Link Monitoring
Switch Configuration For this section, “switch” refers to whatever system the bonded devices are directly connected to (i.e., where the other end of the cable plugs into). This may be an actual […]
Configuring Linux Bonding via Sysfs
Channel Bonding may be configured via the sysfs interface. This interface allows dynamic configuration of all bonds in the system without unloading the module. It also allows for adding and removing bonds at runtime. Ifenslave […]
How to configure bonding on Centos/RHEL 6 linux
The Linux bonding driver provides a method for aggregating multiple network interfaces into a single logical “bonded” interface. The behavior of the bonded interfaces depends upon the mode; generally speaking, modes provide […]
/etc/sysconfig/network-scripts/ directory
/etc/sysconfig/network-scripts/ directory and its files /etc/sysconfig/network-scripts/ifup: /etc/sysconfig/network-scripts/ifdown: Symlinks to /sbin/ifup and /sbin/ifdown, respectively. These are the only two scripts “in” this directory that should be called directly; these two scripts call all the other […]
Linux /etc/sysconfig/ directory and its files
/etc/sysconfig/ directory contains files such as authconfig,clock, grub, keyboard, network, i18n,init, iptables. Will see usages of each files in /etc/sysconfig/ directory and basic configuration. /etc/sysconfig/authconfig Used by authconfig to store information about the system’s user information and authentication […]
How to assign static ip address on Linux RHEL CentOS
We will see how to assign static ip address on Linux step by step. Open terminal (CLI) Login as root Edit /etc/sysconfig/network-scripts/ifcfg-eth0 conf file add below lines: # vi /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=”eth0″ TYPE=”Ethernet” HWADDR=”00:0C:29:20:75:CC” NM_CONTROLLED=”yes” […]
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Configuring puppet4 server agent and puppetdb on ubuntu16.04
Here we are installing and configuring puppet 4 server, agent and puppetdb, Step 1: Install puppet4 server and agent Follow this link to Install puppet4 server and agent do not start puppetserver .Once […]
How to configure bonding on SuSE YaST Linux
Configure bonding on SuSE YaST Linux SuSE SLES 9’s networking configuration system does support bonding, however, at this writing, the YaST system configuration front end does not provide any means to work with bonding […]
Linux Bonding Options CentOS/RHEL 6
Options for the bonding driver are supplied as parameters to the bonding module at load time, or are specified via sysfs. Module options may be given as command line arguments to the insmod or […]
Configuring Linux Bonding via Sysfs
Channel Bonding may be configured via the sysfs interface. This interface allows dynamic configuration of all bonds in the system without unloading the module. It also allows for adding and removing bonds at runtime. Ifenslave […]
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Administration / DNS / Linux
Dig command examples
Virtualization
OpenVz(Kernel Base Open source Virtulization)
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Install Ansible on Linux
Puppet
Configuring puppet4 server agent and puppetdb on ubuntu16.04
Database
Installing postgresql on ubuntu 16.04
Puppet
opensource puppet4 installation on ubuntu16.04