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机器情况:
1、系统 FreeBSD 6.1
2、FTP服务端 vsftpd-2.0.5
3、服务器在私网,通过带路由器映射
问题:
1、远程无法登录
2、任何服务都无法正常访问,但服务端口有监听
信息:
1、/var/log/messages 中有较多此类信息
Dec 31 23:00:02 kernel: kern.maxfiles limit exceeded by uid 80, please see tuning(7).
Dec 31 23:00:03 kernel: kern.maxfiles limit exceeded by uid 0, please see tuning(7).
2、netstat -an 的结果如下:
Active Internet connections (including servers)
Proto Recv-Q Send-Q Local Address Foreign Address (state)
tcp4 0 0 192.168.1.252.21 59.61.151.252.3987 ESTABLISHED
tcp4 0 22 192.168.1.252.21 61.136.223.75.2413 ESTABLISHED
tcp4 0 0 192.168.1.252.21 60.191.8.57.11483 ESTABLISHED
tcp4 0 0 192.168.1.252.21 219.138.30.228.3479 ESTABLISHED
tcp4 0 34 192.168.1.252.21 122.7.80.188.2415 ESTABLISHED
tcp4 0 34 192.168.1.252.21 222.191.151.172.4947 ESTABLISHED
tcp4 0 22 192.168.1.252.21 218.0.13.193.2886 ESTABLISHED
....
....
....
tcp4 0 0 192.168.1.252.21 59.61.151.252.3679 ESTABLISHED
tcp4 0 14 192.168.1.252.21 219.144.154.43.3395 FIN_WAIT_1
tcp4 0 14 192.168.1.252.21 59.38.97.246.51171 FIN_WAIT_1
tcp4 0 14 192.168.1.252.21 124.114.70.229.4323 FIN_WAIT_1
tcp4 0 14 192.168.1.252.21 218.23.169.91.20869 FIN_WAIT_1
....
....
....
tcp4 0 14 192.168.1.252.21 121.68.181.230.1972 FIN_WAIT_1
tcp4 0 14 192.168.1.252.21 220.232.127.136.31151 FIN_WAIT_1
tcp4 0 14 192.168.1.252.21 59.52.63.113.1102 FIN_WAIT_1
tcp4 0 14 192.168.1.252.21 222.85.88.166.37268 FIN_WAIT_1
tcp4 0 14 192.168.1.252.21 59.40.58.128.2032 FIN_WAIT_1
tcp4 0 14 192.168.1.252.21 59.40.58.128.1789 FIN_WAIT_1
tcp4 0 0 *.80 *.* LISTEN
tcp4 0 0 *.3306 *.* LISTEN
tcp4 0 0 *.6160 *.* LISTEN
tcp4 0 0 *.21 *.* LISTEN
tcp4 0 0 127.0.0.1.25 *.* LISTEN
tcp4 0 0 *.22 *.* LISTEN
tcp6 0 0 *.22 *.* LISTEN
udp4 0 0 192.168.1.252.53060 61.152.96.117.6060
udp4 0 0 *.514 *.*
udp6 0 0 *.514 *.*
Active UNIX domain sockets
Address Type Recv-Q Send-Q Inode Conn Refs Nextref Addr
c1f59dac stream 0 0 0 c2b43af0 0 0
....
....
....
c2413000 stream 0 0 0 c1f588c0 0 0
c1f588c0 stream 0 0 0 c2413000 0 0
c1fcc4ec stream 0 0 c22cdaa0 0 0 0 /tmp/ssh-wDupxXKfxe/agent.83874
c253c834 stream 0 0 0 c1eadb7c 0 0
c1eadb7c stream 0 0 0 c253c834 0 0
c1b25ec4 stream 0 0 c1c45770 0 0 0 /tmp/mysql.sock
c1b25000 stream 0 0 c1b23110 0 0 0 /var/run/devd.pipe
c21b21a4 dgram 0 0 0 c1b24d20 0 c2c2208c
....
....
....
c1ead230 dgram 0 0 0 c1b24d20 0 c1b24b7c
c1b24af0 dgram 0 0 0 c1b24dac 0 0
c1b24b7c dgram 0 0 0 c1b24d20 0 0
c1b24d20 dgram 0 0 c1adb880 0 c21b21a4 0 /var/run/logpriv
c1b24dac dgram 0 0 c1adb990 0 c1b24af0 0 /var/run/log |
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