昨天公司的服務器升級硬件，只升級了CPU和 內存，然后重啟過后，線上運行的東西就運行不了，查了一下，所有端口和服務有沒有開放，防火牆那些，結果發現端口和服務，防火牆允許的端口都開了
還是運行不了，帶到晚上１０點，突然有一個哥們說了一句，要不把防火牆關了試一下，結果就好了，忘了查看防火牆信息
目前我們只用到了的端口是
cat: /etc/sysconfig/iptables: Permission denied [dev@chttl-8a6e210a8d27536a ~]$ sudo cat /etc/sysconfig/iptables # Firewall configuration written by system-config-firewall # Manual customization of this file is not recommended. *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT -A INPUT -p icmp -j ACCEPT -A INPUT -i lo -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 21 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT-A INPUT -m state --state NEW -m tcp -p tcp --dport 25 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 3306 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 27017 -j ACCEPT -A INPUT -j REJECT --reject-with icmp-host-prohibited -A FORWARD -j REJECT --reject-with icmp-host-prohibited
只有這些，
結果后面查了一下防火牆信息發現還ＴＭ用到了smb 這個我真的就搞不明白了
ack) Jul 17 09:08:32 chttl-8a6e210a8d27536a smbd[1567]: failed to retrieve printer list: NT_STATUS_UNSUCCESSFUL Jul 17 09:21:32 chttl-8a6e210a8d27536a smbd[28014]: [2015/07/17 09:21:32.803089, 0] printing/print_cups.c:151(cups_connect) Jul 17 09:21:32 chttl-8a6e210a8d27536a smbd[28014]: Unable to connect to CUPS server localhost:631 - Connection refused Jul 17 09:21:32 chttl-8a6e210a8d27536a smbd[1567]: [2015/07/17 09:21:32.803424, 0] printing/print_cups.c:528(cups_async_callback) Jul 17 09:21:32 chttl-8a6e210a8d27536a smbd[1567]: failed to retrieve printer list: NT_STATUS_UNSUCCESSFUL Jul 17 09:34:33 chttl-8a6e210a8d27536a smbd[31824]: [2015/07/17 09:34:33.385856, 0] printing/print_cups.c:151(cups_connect) Jul 17 09:34:33 chttl-8a6e210a8d27536a smbd[31824]: Unable to connect to CUPS server localhost:631 - Connection refused Jul 17 09:34:33 chttl-8a6e210a8d27536a smbd[1567]: [2015/07/17 09:34:33.386165, 0] printing/print_cups.c:528(cups_async_callback) Jul 17 09:34:33 chttl-8a6e210a8d27536a smbd[1567]: failed to retrieve printer list: NT_STATUS_UNSUCCESSFUL Jul 17 09:47:34 chttl-8a6e210a8d27536a smbd[3272]: [2015/07/17 09:47:34.017469, 0] printing/print_cups.c:151(cups_connect) Jul 17 09:47:34 chttl-8a6e210a8d27536a smbd[3272]: Unable to connect to CUPS server localhost:631 - Connection refused Jul 17 09:47:34 chttl-8a6e210a8d27536a smbd[1567]: [2015/07/17 09:47:34.017824, 0] printing/print_cups.c:528(cups_async_callback) Jul 17 09:47:34 chttl-8a6e210a8d27536a smbd[1567]: failed to retrieve printer list: NT_STATUS_UNSUCCESSFUL Jul 17 10:00:34 chttl-8a6e210a8d27536a smbd[7256]: [2015/07/17 10:00:34.651162, 0] printing/print_cups.c:151(cups_connect) Jul 17 10:00:34 chttl-8a6e210a8d27536a smbd[7256]: Unable to connect to CUPS server localhost:631 - Connection refused Jul 17 10:00:34 chttl-8a6e210a8d27536a smbd[1567]: [2015/07/17 10:00:34.651720, 0] printing/print_cups.c:528(cups_async_callback) Jul 17 10:00:34 chttl-8a6e210a8d27536a smbd[1567]: failed to retrieve printer list: NT_STATUS_UNSUCCESSFUL Jul 17 10:13:35 chttl-8a6e210a8d27536a smbd[11582]: [2015/07/17 10:13:35.362361, 0] printing/print_cups.c:151(cups_connect) Jul 17 10:13:35 chttl-8a6e210a8d27536a smbd[11582]: Unable to connect to CUPS server localhost:631 - Connection refused Jul 17 10:13:35 chttl-8a6e210a8d27536a smbd[1567]: [2015/07/17 10:13:35.362682, 0] printing/print_cups.c:528(cups_async_callback) Jul 17 10:13:35 chttl-8a6e210a8d27536a smbd[1567]: failed to retrieve printer list: NT_STATUS_UNSUCCESSFUL Jul 17 10:26:35 chttl-8a6e210a8d27536a smbd[15564]: [2015/07/17 10:26:35.823554, 0] printing/print_cups.c:151(cups_connect) Jul 17 10:26:35 chttl-8a6e210a8d27536a smbd[15564]: Unable to connect to CUPS server localhost:631 - Connection refused Jul 17 10:26:35 chttl-8a6e210a8d27536a smbd[1567]: [2015/07/17 10:26:35.823862, 0] printing/print_cups.c:528(cups_async_callback) Jul 17 10:26:35 chttl-8a6e210a8d27536a smbd[1567]: failed to retrieve printer list: NT_STATUS_UNSUCCESSFUL Jul 17 10:39:36 chttl-8a6e210a8d27536a smbd[19370]: [2015/07/17 10:39:36.439927, 0] printing/print_cups.c:151(cups_connect) Jul 17 10:39:36 chttl-8a6e210a8d27536a smbd[19370]: Unable to connect to CUPS server localhost:631 - Connection refused Jul 17 10:39:36 chttl-8a6e210a8d27536a smbd[1567]: [2015/07/17 10:39:36.440280, 0] printing/print_cups.c:528(cups_async_callback) Jul 17 10:39:36 chttl-8a6e210a8d27536a smbd[1567]: failed to retrieve printer list: NT_STATUS_UNSUCCESSFUL
始終就沒有明白這個631這個端口是搞什么的
查了一下是
samba服務器Unable to connect to CUPS server localhost:631 – 拒絕連接
這個就坑到家了本來，我就沒有用samba 這個的，后來想了一下，應該是亞馬迅雲服務器可能用到了，所以導致的問題
總結，最后還是多看日志，看了一下apache 日志 php 日志，就是忘了看防火牆日志.原本以為我想要的端口都是開的，結果，還是錯了，永遠都不要以為以為，要去實際做了