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How does one limit the number of SSH password attempts in Linux?

Source: Internet
Author: User
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Article Title: how to limit the number of SSH password attempts in Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.

1. Configure/etc/security/limits. conf, or configure/etc/sshd_config.

2. Use fail2ban.

There are other programs that can implement features similar to fail2ban.

In Debian, you can

Apt-get install fail2ban

Shutdown-r now

You can. The default number of accesses is 6, which can be changed through/etc/fail2ban/jail. conf.

Fail2ban can also be used in other services such as apache and ftp. Easy to use.

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