SSH连接服务器时很慢的解决办法

[root@localhost ~]# cp /etc/ssh/sshd_config /etc/ssh/sshd_config.default && cp /etc/ssh/sshd_config /etc/ssh/sshd_config.bak
[root@localhost ~]# vim /etc/ssh/sshd_config
……………此处省略内容若干……………
#UseLogin no
#UsePrivilegeSeparation sandbox
#PermitUserEnvironment no
#Compression delayed
#ClientAliveInterval 0
#ClientAliveCountMax 3
#ShowPatchLevel no
#UseDNS yes
# 禁用SSH连接的DNS反向解析,以提高连接速度和避免潜在的网络问题
UseDNS no
#PidFile /var/run/sshd.pid
#MaxStartups 10:30:100
#PermitTunnel no
#ChrootDirectory none
#VersionAddendum none
……………此处省略内容若干……………
[root@localhost ~]#

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