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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…

26Jul, 2016

Install PEAR/PHP Mail function

  PHP Mail function should be installed on your server if you want to send emails from your code, to install 1. Install Pear package (if it is not already installed) by…

22Jul, 2016

Clear cached memory in Linux

  Some times, you may notice that there is a lot of memory locked in CACHE     To remove the cached memory, login to the server as “root” and execute the below command /bin/sync…

13May, 2016

Install RPMFORGE Repo CentOS/Redhat

  RedHat/CentOS 5: 32Bit: wget http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el5.rf.i386.rpm rpm -ivh rpmforge-release-0.5.3-1.el5.rf.i386.rpm 64Bit: wget http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el5.rf.x86_64.rpm rpm -ivh rpmforge-release-0.5.3-1.el5.rf.x86_64.rpm RedHat/CentOS 6: 32Bit: wget http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el6.rf.i686.rpm rpm -ivh rpmforge-release-0.5.3-1.el6.rf.i686.rpm 64Bit: wget http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el6.rf.x86_64.rpm rpm -ivh rpmforge-release-0.5.3-1.el6.rf.x86_64.rpm RedHat/CentOS 7: wget http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el7.rf.x86_64.rpm rpm -ivh rpmforge-release-0.5.3-1.el7.rf.x86_64.rpm  …

12May, 2016

cPanel: The installation process was unable to synchronize cPanel & WHM

Sometimes you get the below error while installing cPanel (FATAL): The installation process was unable to synchronize cPanel & WHM. Verify that your network can connect to httpupdate.cpanel.net and rerun the…

11May, 2016

cPanel: SMTP error 535 Incorrect authentication data

Sometimes when sending emails on the website through SMTP scripts and Contact forms the following error is observed 535 Incorrect authentication data To fix this   1. Login to WHM with root credentials and…

11May, 2016

cPanel: Increase Easy-Tomcat Memory (Heap Size)

  By default the sizes are minimum 100MB and Maximum 200MB, to increase 1. Edit the following file and add the below lines vi /var/cpanel/tomcat.options Note: If the file does not exists, create…

30Apr, 2016

Installing Zimbra 8.6 on CentOS 7

1. Setup hostname 2. Add entry in hosts file 3. Install dependencies yum install nmap-ncat perl perl-core sysstat 4. Download Zimbra installation file for CentOS 7 wget https://files.zimbra.com/downloads/8.6.0_GA/zcs-8.6.0_GA_1153.RHEL7_64.20141215151110.tgz 5. Uncompress the file tar -xvf https://files.zimbra.com/downloads/8.6.0_GA/zcs-8.6.0_GA_1153.RHEL7_64.20141215151110.tgz 6. Enter the…

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