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CentOS 发布时间：2022-04-02 发布网站：大佬教程 code.js-code.com

大佬教程收集整理的这篇文章主要介绍了centos 7.0 修改ssh默认连接22端口和添加防火墙firewalld 通过端口，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。

概述

首先先做的就是修改ssh的默认端口22 需要修改文件 /etc/ssh/sshd_config 使用命令 vi /etc/ssh/sshd_config 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 4

首先先做的就是修改ssh的默认端口22

需要修改文件

/etc/ssh/sshd_config

使用命令

vi /etc/ssh/sshd_config

 
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       @H_616_102@
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@H_@R_696_11277@_118@ 43

@H_801_120@ 44

[root@localhost ~]# vi /etc/ssh/sshd_config

# $OpenBSD: sshd_config,v 1.90 2013/05/16 04:09:14 dtucker Exp $

@H_502_21@

# This is the sshd server system-wide configuration file. See

# sshd_config(5) for more information.

# This sshd was compiled with PATH=/usr/local/bin:/usr/bin

# The strategy used for options in the default sshd_config shipped with

# OpenSSH is to specify options with their default value where

# possible,but leave them commented. Uncommented options override the

# default value.

# If you want to change the port on a SELinux system,you have to tell

# SELinux about this change.

# semanage port -a -t ssh_port_t -p tcp #PORTnumbER

#

Port 48489

#AddressFamily any

#ListenAddress 0.0.0.0

#ListenAddress ::

# The default requires explicit activation of protocol 1

#Protocol 2

# HostKey for protocol version 1

#HostKey /etc/ssh/ssh_host_key

# HostKeys for protocol version 2

HostKey /etc/ssh/ssh_host_rsa_key

#HostKey /etc/ssh/ssh_host_dsa_key

HostKey /etc/ssh/ssh_host_ecdsa_key

# Lifetime and size of ephemeral version 1 server key

#KeyRegenerationInterval 1h

@H_616_102@ #ServerKeyBits 1024

# Ciphers and keying

#RekeyLimit default none

# Logging

# obsoletes QuietMode and FascistLogging

#SyslogFacility AUTH

@H_@R_696_11277@_118@ SyslogFacility authprIV

@H_801_120@ #LogLevel INFO

# Authentication:

#LoginGraCETime 2m

#PermitRootLogin yes

#StrictModes yes

#MaxAuthTries 6

#MaxSessions 10

#RSAAuthentication yes

#PubkeyAuthentication yes

# The default is to check both .ssh/authorized_keys and .ssh/authorized_keys2

# but this is overridden so installations will only check .ssh/authorized_keys

AuthorizedKeysFile .ssh/authorized_keys

#AuthorizedPrincipalsFile none

#AuthorizedKeysCommand none

centos 7.0 修改ssh默认连接22端口 和 添加防火墙firewalld 通过端口

概述

大佬总结

centos 7.0 修改ssh默认连接22端口和添加防火墙firewalld 通过端口