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Configure ElasticEmail with Postfix
To configure ElasticEmail with postfix, first install sasl support On Debian/Ubuntu apt-get install libsasl2-modules On RHEL/CentOS yum install cyrus-sasl-plain Edit postfix config…
fail2ban
To install fail2ban on Deban/Ubuntu, run To enable fail2ban start on boot and start it To view the status To resart fail2ban
Install fail2ban on CentOS
To install fail2ban on CentOS, first, enable the epel repo by running Now install fail2ban with Enable fail2ban with Basck to fail2ban
Setting up Mail Forwarding in Postfix
To setup mail forward in postfix, Edit postfix config file vi /etc/postfix/main.cf Add virtual_alias_domains = /etc/postfix/virtual_alias_domains virtual_alias_maps = hash:/etc/postfix/virtual_alias_maps Create file /etc/postfix/virtual_alias_domains…
Fix Cpanel SSH Service in WHM
You may need to restart SSH on Cpanel server with default settings to get SSH access. This may needed when you work…
mailgun
Configure Postfix to sent emails using MailGun Transnational Email Providers SASL authentication no mechanism available
Configure Postfix to sent emails using MailGun
First install requirements apt-get update && apt-get install postfix libsasl2-modules -y Run sed -i “s/default_transport = error/# default_transport = error/g” /etc/postfix/main.cf sed…
Installing OpenSSH from Source on Ubuntu 16.04
PCI Compliance report from COMMODO complain about OpenSSH version available in Ubuntu 16.04. SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu2.4 This version have all security updates back…
htpasswd
Create a password file To change the password for an existing user You can use -b option to specify the password as…
api
Testing API https://extendsclass.com/rest-client-online.html https://insomnia.rest/ https://www.getpostman.com/