ConfigServer Security and Firewall (CSF)
How to use CSF Firewall Firewall Configuration Restart csf Block an IP Whitelist an IP
Linux
nf_conntrack: table full, dropping packet
On a CentOS server, i get following error in /var/log/messages Jan 17 03:40:02 ss1 kernel: nf_conntrack: table full, dropping packet Jan 17…
lsof
umount /home device is busy To see all Open files lsof To see all network activity lsof -i See the connections on…
Install PHP 7.2 on CentOS from yum
First you need to install Remi repository https://rpms.remirepo.net Enable epel repo with yum install epel-release -y On CentOS 7 rpm -ivh https://rpms.remirepo.net/enterprise/remi-release-7.rpm…
haproxy
To install haproxy on Ubuntu, run Haproxy config file is located at Enable HTTP_X_FORWARDED_FOR in HaproxyShow X-Forwarded-For IP in ApacheHaproxy Site With…
chrome
Install Google Chrome on CentOS 7 64 bit Install Google Chrome in Ubuntu Enable Native Notification in Google Chrome Disable Native Notification…
Install Google Chrome on CentOS 7 64 bit
To install Google Chrome on CentOS 7 (Chrome won’t work on CentOS 6 as it is using older version of libraries required…
screen
screen allows you to run commands in the remote server even after you disconnect. disconnect from a session Press CTRL + A,…
OVH VPS Configure failover IP in Ubuntu
On Ubuntu Default config look like root@zecurecode:~# cat /etc/network/interfaces # This file describes the network interfaces available on your system # and…
ssh-keygen
To generate SSH key, run If you need RSA key, run To create an SSH key in the current folder, run This…