Set Time Zone on CentOS 7 Rumi, January 14, 2020 Checking the Current Timezone In CentOS and other modern Linux distros, you can use the timedatectl command to display and set the current system’s time and timezone. timedatectl The output below shows that the system’s timezone is set to UTC: Local time: Wed 2019-02-06 22:43:42 UTC Universal time: Wed 2019-02-06… Continue Reading
Install ZFS on CentOS 7 Rumi, January 1, 2020 Installing ZFS File System ZFS File System support is not enabled by default on CentOS 7. That is not the only problem. ZFS is not available in the official package repository of CentOS 7. You have to install it from the official package repository of ZFS. I am installing this… Continue Reading
Disable FirewallD and Enable Iptables on CentOS 7 Rumi, December 28, 2019 Download and Install the Iptables Service To begin your server’s transition, you need to download and install the iptables-service package from the CentOS repositories. Download and install the service files by typing: sudo yum install iptables-services This will download and install the systemd scripts used to manage the iptables service…. Continue Reading
Zimbra 8.8 on CentOS 7 Rumi, December 17, 2019 Before we proceed with Zimbra Collaboration Suite installation process, first login to your server console with root privileges and install the following packages: # yum -y install unzip net-tools sysstat openssh-clients perl-core libaio nmap-ncat libstdc++.so.6 perl perl-core ntpl nmap sudo libidn gmp libaio libstdc++ unzip sqlite dnsmasq Next, issue getenforce command to check… Continue Reading
Add a New Disk Larger Than 2TB to An Existing Linux Rumi, December 13, 2019December 11, 2020 I am using fdisk and parted utilities to do this configuration. First list the current partition details using fdisk command as shown. # fdisk -l List Linux Partition Table For the purpose of this article, I am attaching a hard disk of 20GB capacity, which can be followed for disk larger than 2TB as well. Once… Continue Reading
Install ionCube Loader on a CentOS 7 Rumi, December 8, 2019 1. Log in to your CentOS 7 VPS via SSH as user root # ssh root@IP_Address and update all installed services # yum update 2. Run the ‘arch’ command in the terminal to check if your system is 32-bit (i686) or 64-bit (x86_64) # arch x86_64 3. In our case… Continue Reading
Install VirtualBox on Centos 6 / 7 Rumi, September 6, 2019 Step 1 – Add Required Yum Repositories Firstly you are required to add VirtualBox yum repository in your system. Download repository file from its official site and place it under at /etc/yum.repos.d/virtualbox.repo .First navigate to /etc/yum.repos.d/ directory and use one of below commands as per your operating system. cd /etc/yum.repos.d/ wget http://download.virtualbox.org/virtualbox/rpm/rhel/virtualbox.repo… Continue Reading
Allow firewalld for webmin access after post installation Rumi, August 4, 2019 FirewallD is an IPv6 compatible firewall mechanism used in recent Linux distributions (RedHat/Fedora/CentOS) replacing good old iptables. Continue Reading
Install Poppassd in CentOS 7 Rumi, July 19, 2019November 15, 2019 Steps for configuration change password plugin for squirrelmail/Horde/Rainloop using poppassd are: Download poppassd.c from https://netwinsite.com/poppassd/ Look at poppassd.c and make sure it looks safe yum -y install gcc gcc poppassd.c -o poppassd -lcrypt mv poppassd /usr/local/bin/ yum -y install xinetd cp /etc/xinetd.d/time-stream /etc/xinetd.d/poppassd nano /etc/xinetd.d/poppassd Update “service time” to “service… Continue Reading
Set Hostname in Centos 7 Rumi, May 11, 2019 CentOS 7 only allows Fully Qualified Domain Names (FQDN’s). Acceptable values include lower-case letters a to z, numbers 0 to 9, the period, and the hyphen, and between 2 and 63 characters. At the console, type: hostnamectl set-hostname my.new-hostname.server NOTE: Replace my.new-hostname.server with your chosen hostname. Check the Hostname hostnamectl Continue Reading