本篇文章給大家分享的是有關(guān)Linux遠(yuǎn)程服務(wù)器無法登錄的解決方法,小編覺得挺實用的,因此分享給大家學(xué)習(xí),希望大家閱讀完這篇文章后可以有所收獲,話不多說,跟著小編一起來看看吧。
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1.問題說明
Linux遠(yuǎn)程服務(wù)器突然無法SSH登錄了,
登陸報錯:
ssh_exchange_identification: read: Connection reset by peer。
2.問題原因
var目錄的權(quán)限不正確
3.解決辦法
將SSH相關(guān)文件的權(quán)限改回來,確保權(quán)限為755,屬主為root:root。
這里可以使用vps服務(wù)器的svn功能,進(jìn)行登錄系統(tǒng),vps提供商都會提供vnc登錄功能。
3.1.查看sshd狀態(tài)
service sshd status
Redirecting to /bin/systemctl status sshd.service ● sshd.service - OpenSSH server daemon Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; vendor preset: enabled) Active: active (running) since 二 2019-04-09 23:36:09 CST; 18h ago Docs: man:sshd(8) man:sshd_config(5) Process: 1357 ExecStart=/usr/sbin/sshd $OPTIONS (code=exited, status=0/SUCCESS) Main PID: 1358 (sshd) CGroup: /system.slice/sshd.service ├─ 1358 /usr/sbin/sshd ├─20443 sshd: root@pts/1 ├─20445 sshd: root@notty ├─20447 /usr/libexec/openssh/sftp-server ├─20594 -bash ├─23794 sshd: MySQL [priv] ├─23796 sshd: mysql@pts/0 ├─23797 sshd: mysql [priv] ├─23799 sshd: mysql@notty ├─23800 /usr/libexec/openssh/sftp-server ├─23991 -bash ├─25381 vim /etc/init.d/mysqld └─25739 /bin/systemctl status sshd.service 4月 10 17:59:47 dap229-156 sshd[21516]: pam_unix(sshd:session): session closed for user mysql 4月 10 18:00:05 dap229-156 sshd[23794]: Accepted password for mysql from 10.43.163.30 port 54797 ssh3 4月 10 18:00:05 dap229-156 sshd[23794]: pam_unix(sshd:session): session opened for user mysql by (uid=0) 4月 10 18:00:05 dap229-156 sshd[23797]: Accepted password for mysql from 10.43.163.30 port 54798 ssh3 4月 10 18:00:05 dap229-156 sshd[23797]: pam_unix(sshd:session): session opened for user mysql by (uid=0) 4月 10 18:26:00 dap229-156 sshd[25579]: fatal: /var/empty/sshd must be owned by root and not group or world-writable. 4月 10 18:26:12 dap229-156 sshd[25580]: fatal: /var/empty/sshd must be owned by root and not group or world-writable. 4月 10 18:26:29 dap229-156 sshd[25581]: fatal: /var/empty/sshd must be owned by root and not group or world-writable. 4月 10 18:26:46 dap229-156 sshd[25590]: fatal: /var/empty/sshd must be owned by root and not group or world-writable. 4月 10 18:30:11 dap229-156 sshd[25622]: fatal: /var/empty/sshd must be owned by root and not group or world-writable.
3.2.修復(fù)文件權(quán)限
chmod 755 /var/empty/sshd
如果屬主不對,還需要修改屬主:
chown root:root /var/empty/sshd
3.3.重啟sshd服務(wù)
service sshd restart
3.4.再次查看sshd狀態(tài)
service sshd status
Redirecting to /bin/systemctl status sshd.service ● sshd.service - OpenSSH server daemon Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; vendor preset: enabled) Active: active (running) since 三 2019-04-10 18:35:01 CST; 3s ago Docs: man:sshd(8) man:sshd_config(5) Process: 25768 ExecStart=/usr/sbin/sshd $OPTIONS (code=exited, status=0/SUCCESS) Main PID: 25769 (sshd) CGroup: /system.slice/sshd.service ├─20443 sshd: root@pts/1 ├─20445 sshd: root@notty ├─20447 /usr/libexec/openssh/sftp-server ├─20594 -bash ├─23794 sshd: mysql [priv] ├─23796 sshd: mysql@pts/0 ├─23797 sshd: mysql [priv] ├─23799 sshd: mysql@notty ├─23800 /usr/libexec/openssh/sftp-server ├─23991 -bash ├─25381 vim /etc/init.d/mysqld ├─25769 /usr/sbin/sshd └─25770 /bin/systemctl status sshd.service 4月 10 18:35:01 dap229-156 systemd[1]: Starting OpenSSH server daemon... 4月 10 18:35:01 dap229-156 systemd[1]: PID file /var/run/sshd.pid not readable (yet?) after start. 4月 10 18:35:01 dap229-156 sshd[25769]: Server listening on 0.0.0.0 port 22. 4月 10 18:35:01 dap229-156 sshd[25769]: Server listening on :: port 22. 4月 10 18:35:01 dap229-156 systemd[1]: Started OpenSSH server daemon.
這個時候檢查沒有錯誤了,服務(wù)器可以SSH登錄了,
以上就是Linux遠(yuǎn)程服務(wù)器無法登錄的解決方法,小編相信有部分知識點可能是我們?nèi)粘9ぷ鲿姷交蛴玫降?。希望你能通過這篇文章學(xué)到更多知識。更多詳情敬請關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道。