help！ 急！

[weixin_38060792]

哪位大哥大姐知道怎么回事啊？

Apr 13 05:58:44 rdmailserver sshd(pam_unix)[7390]: authentication failure; logname= uid=0 euid=0 tty=ssh ruser
= rhost=222.90.77.158  user=htt
Apr 13 06:44:49 rdmailserver sshd(pam_unix)[9691]: authentication failure; logname= uid=0 euid=0 tty=ssh ruser
= rhost=219.149.211.40  user=htt

Apr 20 17:20:42 rdmailserver httpd: no listening sockets available, shutting down
Apr 20 17:20:42 rdmailserver httpd: Unable to open logs
Apr 20 17:20:42 rdmailserver httpd: httpd startup failed
Apr 20 17:20:52 rdmailserver httpd: httpd shutdown failed
Apr 20 17:20:57 rdmailserver httpd: httpd: Could not determine the server's fully qualified domain name, using
127.0.0.1 for ServerName
Apr 20 17:20:57 rdmailserver httpd: (9Address already in use: make_sock: could not bind to address [::]:80
Apr 20 17:20:57 rdmailserver httpd: no listening sockets available, shutting down
Apr 20 17:20:57 rdmailserver httpd: Unable to open logs
Apr 20 17:20:57 rdmailserver httpd: httpd startup failed
Apr 21 08:46:49 rdmailserver smartd[2484]: Home page is http://smartmontools.sourceforge.net/
Apr 21 08:46:51 rdmailserver iiim: htt startup succeeded
Apr 21 08:46:51 rdmailserver htt_server[2578]: started.
Apr 21 20:07:47 rdmailserver smartd[2599]: Home page is http://smartmontools.sourceforge.net/
Apr 21 20:07:51 rdmailserver iiim: htt startup succeeded
Apr 21 20:07:51 rdmailserver htt_server[2840]: started.
Apr 22 18:47:12 rdmailserver su(pam_unix)[15263]: session opened for user htt by admin(uid=0)
Apr 22 18:47:12 rdmailserver su(pam_unix)[15263]: session closed for user htt


这是日志文件里面记录的，请哥哥姐姐们指点指点，这是怎么回事啊？