4 FAQ tagged "port 22"

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Monit: Monitor SSHD Server and Auto Restart SSH If It Does Not Respond :
This FAQ is part 2 of 2 in the series Linux Server Monitor
Q. How do I monitor my ssh server with monit? How do I restart ssh server if it does not respond or dead due to any issues under Linux?
Iptables is not sending LOG to syslog file :
Q. I am running SSH/MySQL/Webserver and setup iptables based firewall. But my logs are send to console rather than the system log files. How do make sure that iptables LOG target messages are send to /var/log/messages file?
A. IPTABLES LOG module turns on kernel logging of matching packets. When this option is set for a [...]
Restrict ssh access using tcpd (TCPWrapper) :
tcpd is use to access control facility for internet services. The tcpd program can be set up to monitor incoming requests for telnet, finger, ftp, exec, rsh, rlogin, tftp, sshd and other services that have a one-to-one mapping onto executable files. Your sshd server must be configuring (compiled [...]
Restrict ssh access using Iptable :
Q. How do I stop or restrict access to my OpenSSH (SSHD) server using Linux iptables based firewall?
A. Linux iptables firewall can be use to block or restrict access to ssh server. Iptables command is used to set up, maintain, and inspect the tables of IP packet filter rules in the Linux kernel. However, you [...]

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