Run the following commands to install Fail2ban.<\/p>\n

sudo apt-get update\r\nsudo apt-get install fail2ban\r\n<\/code><\/pre>\n
Configuring<\/h3>\n
The the default configuration file is located as follows.<\/p>\n
\/etc\/fail2ban\/jail.conf\r\n<\/code><\/pre>\n
To avoid possible conflict, you should make a copy of it. For this example, we will call it\u00a0jail.local<\/code>.<\/p>\n
sudo cp \/etc\/fail2ban\/jail.conf \/etc\/fail2ban\/jail.local\r\n<\/code><\/pre>\n
Now that we have a backup, let’s begin editing. Open the\u00a0jail.local<\/code>\u00a0file in your favorite text editor.<\/p>\n
sudo vi \/etc\/fail2ban\/jail.local\r\n<\/code><\/pre>\n
You may use my config example below. It is configured for SSH. There are some settings that you may want to tweak, such as:<\/p>\n
\n
Adding email notifications for when someone is trying to access the server.<\/li>\n
The length of the ban.<\/li>\n
The max number of retries before a ban is executed.<\/li>\n
Include your static IP in “ignoreip” (if you have one).<\/li>\n<\/ul>\n
Example config<\/h4>\n
[DEFAULT]\r\nignoreip = 127.0.0.1\/8\r\nbantime = 1800\r\nmaxretry = 4\r\n\r\n[ssh-route]\r\nmaxretry = 3\r\naction = iptables[name=SSH, port=ssh, protocol=tcp]\r\n         sendmail-whois[name=SSH, dest=root, sender=fail2ban@your-domain.com]\r\n<\/code><\/pre>\n
Once you have made any configuration changes, restart Fail2ban and you’re good to go.<\/p>\n
sudo service fail2ban restart<\/code><\/pre>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","manualknowledgebasecat":[245,247],"manual_kb_tag":[505],"_links":{"self":[{"href":"https:\/\/support.aklwebhost.com\/wp-json\/wp\/v2\/manual_kb\/3030"}],"collection":[{"href":"https:\/\/support.aklwebhost.com\/wp-json\/wp\/v2\/manual_kb"}],"about":[{"href":"https:\/\/support.aklwebhost.com\/wp-json\/wp\/v2\/types\/manual_kb"}],"author":[{"embeddable":true,"href":"https:\/\/support.aklwebhost.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/support.aklwebhost.com\/wp-json\/wp\/v2\/comments?post=3030"}],"version-history":[{"count":1,"href":"https:\/\/support.aklwebhost.com\/wp-json\/wp\/v2\/manual_kb\/3030\/revisions"}],"predecessor-version":[{"id":3031,"href":"https:\/\/support.aklwebhost.com\/wp-json\/wp\/v2\/manual_kb\/3030\/revisions\/3031"}],"wp:attachment":[{"href":"https:\/\/support.aklwebhost.com\/wp-json\/wp\/v2\/media?parent=3030"}],"wp:term":[{"taxonomy":"manualknowledgebasecat","embeddable":true,"href":"https:\/\/support.aklwebhost.com\/wp-json\/wp\/v2\/manualknowledgebasecat?post=3030"},{"taxonomy":"manual_kb_tag","embeddable":true,"href":"https:\/\/support.aklwebhost.com\/wp-json\/wp\/v2\/manual_kb_tag?post=3030"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}