Install Poppassd in CentOS 7

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/poppassdUpdate “service time” to “service poppassd”

disable = no
id = poppasswd
type = UNLISTED
user = root
group = root
server = /usr/local/bin/poppassd
port = 106
systemctl restart xinetd
systemctl enable xinetd

Test by doing “telnet localhost 106” that service is started properly or not.

Your poppassd is now installed on Centos 7 system.

Src: https://www.sbarjatiya.com/notes_wiki/index.php/CentOS_7.x_Configure_change_password_plugin_for_squirrelmail_using_poppassd

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Set Hostname in Centos 7

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
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Install LAMP on Centos 7 with PHP 5.x/7.0/7.1/7.2

In this tutorial, I use the hostname server1.example.com with the IP p 192.168.1.100. These settings might differ for you, so you have to replace them where appropriate.

I will add the EPEL repo here to install latest phpMyAdmin as follows:

rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY*
yum -y install epel-release

To edit files on the shell, I’ll install the nano editor. If you prefer vi for file editing, then skip this step.

yum -y install nano

Installing MySQL / MariaDB

MariaDB is a MySQL fork of the original MySQL developer Monty Widenius. MariaDB is compatible with MySQL and I’ve chosen to use MariaDB here instead of MySQL. Run this command to install MariaDB with yum:

yum -y install mariadb-server mariadb

Then we create the system startup links for MySQL (so that MySQL starts automatically whenever the system boots) and start the MySQL server: Continue reading “Install LAMP on Centos 7 with PHP 5.x/7.0/7.1/7.2” »

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Install MariaDB on CentOS 7

MariaDB is an open source relational database management system, backward compatible, binary drop-in replacement of MySQL. It is developed by some of the original developers of the MySQL and by many people in the community. With the release of CentOS 7, MySQL was replaced with MariaDB as the default database system.

If you, for any reason need to install MySQL, check the How to Install MySQL on CentOS 7 tutorial. If your application does not have any specific requirements, you should stick with MariaDB, the default database system in CentOS 7.

In this tutorial we will show you how to install the latest version of MariaDB on CentOS 7 using the official MariaDB repositories.

Prerequisites
Make sure you are logged in as a user with sudo privileges before proceeding with the tutorial. Continue reading “Install MariaDB on CentOS 7” »

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Vesta- How to set up master-slave DNS cluster

If you are looking for the options to avoid any DNS-related downtime or the way to manage dns across all server you have, you might consider to set up dns cluster.

Create user dns-cluster on a server which will be used as dns slave

On the second server (slave) with vestacp you should create new user with name dns-cluster (via gui or cli)Code: 

v-add-user dns-cluster passowrd yourmail@example.tld

On the first server (master) you should run this command: Continue reading “Vesta- How to set up master-slave DNS cluster” »

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Install Vesta Control Panel (vestacp) on Centos 7 with PHP-FPM and PHP 7.2

I had few issues on my container and KVM on installing vestacp. Issues were like quite weird, such as-

  1. Post installation on KVM- it moved into emergency maintenance mode
  2. Post installation on LXC container- DNS resolution halted

After hours and hours of search, found few root causes-

  1. I have to withdraw quota with vestacp installation package
  2. No firewall on LXCcontainer

So let’s start.

Download installation script

curl -O http://vestacp.com/pub/vst-install.sh

Run it

bash vst-install.sh --nginx yes --phpfpm yes --apache no --named yes --remi yes --vsftpd yes --proftpd no --iptables no --fail2ban no --quota no --exim yes --dovecot yes --spamassassin yes --clamav yes --softaculous yes --mysql yes --postgresql no --hostname yourdomain.com --email yourmail@yourdomain.com --password yourpassword

You can also generate your installation command from vesta website: Continue reading “Install Vesta Control Panel (vestacp) on Centos 7 with PHP-FPM and PHP 7.2” »

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Install Cacti 1.1 on CentOS 7

Cacti is a free and open source network monitoring and graphing tool written in PHP. With the help of RRDtool (Round-Robin database tool), Cacti can be used to provide various useful features, including remote and local data collectors, graph templating, network discovery, device management automation, etc.

Prerequisites
A fresh CentOS 7 x64 server instance. Say its IP address is 1.2.3.4.
A sudo user.
The server instance has been updated to the latest stable status using the EPEL YUM repo.

Step 1: Setup an up to date LAMP stack
Before you can properly install and run Cacti, you need to setup a LAMP stack or an equivalent web operating environment.

The following will set up an up to date LAMP stack for Cacti, which consists of CentOS 7, Apache 2.4, MariaDB 10.2, and PHP 7.1

# Install Apache 2.4
sudo yum install httpd -y
sudo sed -i 's/^/#&/g' /etc/httpd/conf.d/welcome.conf
sudo sed -i "s/Options Indexes FollowSymLinks/Options FollowSymLinks/" /etc/httpd/conf/httpd.conf
sudo systemctl start httpd.service
sudo systemctl enable httpd.service

Continue reading “Install Cacti 1.1 on CentOS 7” »

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Webmin installation on Centos

Installing the RPM

If you are using the RPM version of Webmin, first download the file from the downloads page, or run the command :

wget http://prdownloads.sourceforge.net/webadmin/webmin-1.870-1.noarch.rpm

then install optional dependencies with :

yum -y install perl perl-Net-SSLeay openssl perl-IO-Tty perl-Encode-Detect

and then run the command :

rpm -U webmin-1.870-1.noarch.rpm

Continue reading “Webmin installation on Centos” »

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