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21Oct, 2016

Adding Persistent Routes in CentOS 7 Servers

  Persistent routes should be added in the route file, if your interface name is ens001, then you need to create the following file vi  /etc/sysconfig/network-scripts/route-ens001 and add routes in the following format 10.10.20.0/24…

21Oct, 2016

Adding Temporary Routes in CentOS 7 Servers

  Temporary routes can be added using the following command on CentOS7 Simple route: ip route 10.10.20.0/32 via 192.168.20.1   Device based simple route: ip route 10.10.20.0/32 via 192.168.20.1 dev ens1002   Device based simple route with specified…

21Oct, 2016

Routes on CentOS 7 Servers

  What is routing: Routing informs the kernel how to transfer a packet from one IP to another IP. Lets say you have the the following routers (gateways) 192.168.20.1 192.168.20.2 and the second level of…

20Aug, 2016

Using find command in Linux

Find is a very useful utility available in all the Linux server across all the variants, in this post let’s discuss some of the use cases of the command “find“. You…

20Aug, 2016

Generating a CSR for a domain

Let’s generate a CSR for the domain hostingdada.net using OpenSSL Login to your linux server as “root” via SSH through Putty On the prompt type the following command to generate…

19Aug, 2016

EasyApache is currently upgrading your Apache and PHP installation

  Some times you will not be able to change PHP/SuPHP settings, Add Java Servlet’s. We get the following error while doing it through WHM EasyApache is currently upgrading your Apache and…

10Aug, 2016

Change Linux Servers HOSTNAME

  RHEL7/CentOS7 Servers: Temporary Change (will not sustain a reboot) Servers hostname can be changed temporarily by running the following command hostname new.hostname.here Permanent Change (Will sustain even after a reboot) Change the hostname of…

10Aug, 2016

Bi-Directional File Sync Using UNISON

  UNISON File Synchronizer can be used to perform bi-directional sync between two directories (local or remote) Installation: CentOS: UNISON file synchronizer can be install through yum by the below command yum install unison -y Note:

09Aug, 2016

CentOS Key Based SSH Login

SSH Key based authentication is very useful for transferring data and for some data sync applications to work, to configure the key based login on a CentOS Server 1. Generate SSH…

26Jul, 2016

Configure NATing on Linux Servers

  If you want to configure NAT to share the internet access to the other clients on the network that share the same private network 1. Edit the following file vi /etc/sysctl.conf 2. change…

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