时间:2023-06-02 16:16:41 来源: 人气:
VPS是3个人合租共用的,不知道谁操作了什么导致SSH启动失败,一直连接不上刚开始以为系统坏了呢,后面通过VPS终端登陆上去发现SSH服务没在运行,于是尝试运行SSHD发现出现如下错误:, Starting sshd:, @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@, @ WARNING: UNPROTECTED PRIVATE KEY FILE! @, @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@, Permissions 0777 for ‘/etc/ssh/ssh_host_rsa_key’ are too open., It is recommended that your private key files are NOT accessible by others., This private key will be ignored., bad permissions: ignore key: /etc/ssh/ssh_host_rsa_key, Could not load host key: /etc/ssh/ssh_host_rsa_key, @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@, @ WARNING: UNPROTECTED PRIVATE KEY FILE! @, @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@, Permissions 0777 for ‘/etc/ssh/ssh_host_dsa_key’ are too open., It is recommended that your private key files are NOT accessible by others., This private key will be ignored., bad permissions: ignore key: /etc/ssh/ssh_host_dsa_key, Could not load host key: /etc/ssh/ssh_host_dsa_key, Disabling protocol version 2. Could not load host key, sshd: no hostkeys available — exiting., [FAILED], 解决方法:, #chmod 600 sshd_config ssh_host_dsa_key ssh_host_key ssh_host_rsa_key, #chmod 620 moduli, #chmod 644 ssh_config ssh_host_dsa_key.pub ssh_host_key.pub ssh_host_rsa_key.pub, #service sshd start, 再次出现如下错误:, [root@bailongjun ssh]# service sshd restart, Stopping sshd: [FAILED], Starting sshd: /var/empty/sshd must be owned by root and not group or world-writable., [FAILED], 在终端上直接登录,问题显示如下:, /var/empty/sshd must be owned by root and not group or world-writable., 问题:, Linux上的SSH无法启动, 报告/var/empty/sshd must be owned by root and not group or world-writable., 解决办法:, 首先通过物理终端进入到linux上,手工检查ssh发现没运行, -bash-2.05b# /etc/init.d/sshd status, sshd is stopped, 手工启动服务,发现报告权限错误。, -bash-2.05b# /etc/init.d/sshd start, Starting sshd:/var/empty/sshd must be owned by root and not group or world-writable., [FAILED], -bash-2.05b#, 使用rpm -V 命令可检查到ssh的软件包正常,但某个目录的属主错误。, -bash-2.05b# rpm -V openssh-server, S.5….. c /etc/ssh/sshd_config, …..U.. /var/empty/sshd, -bash-2.05b#, 经查看发现这个目录的属主不是root,所以启动ssh报错, -bash-2.05b# ls -ld /var/empty/sshd/, d–x–x–x 2 vu00106 root 1024 Feb 2 2005 /var/empty/sshd/, -bash-2.05b#, 修改为root属主,启动成功, -bash-2.05b# chown root /var/empty/sshd/, -bash-2.05b# /etc/init.d/sshd start, Starting sshd: [ OK ], -bash-2.05b#, 至此问题修复。, 另外,还可以尝试:, 这个是权限的问题, 可采取以下两步解决, chown -R root.root /var/empty/sshd, chmod 744 /var/empty/sshd, service sshd restart, 就可以解决上述的问题。,