ConfigServer Security and Firewall (CSF)
Install CSF Firewall Install CSF firewall on Ubuntu Server Unban an IP from CSF Firewall Block Country in CSF firewall
sysctl
nf_conntrack: table full, dropping packet MariaDB Change Open Files Limit Elasticsearch
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
lsof
umount /home device is busy To see all Open files To see all network activity See the connections on port
Install PHP 7.2 on CentOS from yum
First you need to install Remi repository https://rpms.remirepo.net Enable epel repo with On CentOS 7 On CentOS 6 Enable PHP
CentOS
CentOS 8 CentOS 7 CentOS 6
haproxy
To install haproxy on Ubuntu, run Enable HTTP_X_FORWARDED_FOR in Haproxy Show X-Forwarded-For IP in Apache Haproxy Site With SSL Enable
chrome
Install Google Chrome on CentOS 7 64 bit Install Google Chrome in Ubuntu Enable Native Notification in Google Chrome Disable
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
screen
screen allow you to run commands in remote server even after you disconnect. disconnect from a session You can just
OVH VPS Configure failover IP in Ubuntu
On Ubuntu Default config look like /etc/network/interfaces.d/50-cloud-init.cfg is used to auto configure network interface with dhcp. First find the gateway
ssh-keygen
To generate SSH key, run If you need RSA key, run To create an SSH key in current folder, run