pam_limits(sshd:session)：could not sent limit for ‘nofile’

ssh 无法登陆, 日志如下

pam_limits(sshd:session)：could not sent limit for 'nofile'

原因是因为, /etc/security/limits.conf nofile 大于 fs.nr_open

 # cat /etc/security/limits.conf | grep nofile
* soft nofile 65535
* hard nofile 65535

 # sysctl -a | grep fs.nr_open
fs.nr_open = 65500

调整 fs.nr_open 即可

 # sysctl -w fs.nr_open=655000

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