【Linux】/etc/hosts.deny与/etc/hosts.allow

最新推荐文章于 2025-03-01 00:15:00 发布

转载最新推荐文章于 2025-03-01 00:15:00 发布 · 309 阅读

本文介绍如何通过配置/etc/hosts.deny和/etc/hosts.allow文件来控制SSH登录，具体包括禁止所有IP地址的SSH连接以及允许特定IP地址进行SSH登录的方法。

[root@app toolsqldir]# more /etc/hosts.deny
#
# hosts.deny This file contains access rules which are used to
# deny connections to network services that either use
# the tcp_wrappers library or that have been
# started through a tcp_wrappers-enabled xinetd.
#
# The rules in this file can also be set up in
# /etc/hosts.allow with a 'deny' option instead.
#
# See 'man 5 hosts_options' and 'man 5 hosts_access'
# for information on rule syntax.
# See 'man tcpd' for information on tcp_wrappers
#
sshd: ALL ----禁止所有登陆
[root@app toolsqldir]# more /etc/hosts.allow
#
# hosts.allow This file contains access rules which are used to
# allow or deny connections to network services that
# either use the tcp_wrappers library or that have been
# started through a tcp_wrappers-enabled xinetd.
#
# See 'man 5 hosts_options' and 'man 5 hosts_access'
# for information on rule syntax.
# See 'man tcpd' for information on tcp_wrappers
#
sshd: 125.208.12.124 60.12.157.77 182.254.152.182 放开这些ip 也可以是ip段！

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