我无法在运行Ubuntu 12.10的开发机器上启动新的apache2安装。
michal@ubuntudesktop:~$ sudo service apache2 start * Starting web server apache2 no listening sockets available, shutting down Unable to open logs Action 'start' failed. The Apache error log may have more information. [fail] 用netstat：
michal@ubuntudesktop:~$ sudo netstat -lnp | grep '80' unix 2 [ ACC ] SEQPACKET LISTENING 6801 359/udevd /run/udev/control unix 2 [ ACC ] STREAM LISTENING 14537 2180/dbus-daemon @/tmp/dbus-9uSpG5NRQ5
lsof的：
michal@ubuntudesktop:~$ sudo lsof -i :80 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME ubuntu-ge 2425 michal 11u IPv4 17679 0t0 TCP ubuntudesktop.local:42280->mistletoe.canonical.com:http (CLOSE_WAIT) opera 3278 michal 19u IPv4 156420 0t0 TCP ubuntudesktop.local:56934->s3-1-w.amazonaws.com:http (ESTABLISHED) opera 3278 michal 78u IPv4 126955 0t0 TCP ubuntudesktop.local:53709->69.59.197.29:http (ESTABLISHED) opera 3278 michal 82u IPv4 128928 0t0 TCP ubuntudesktop.local:53725->69.59.197.29:http (ESTABLISHED) opera 3278 michal 83u IPv4 128632 0t0 TCP ubuntudesktop.local:53718->69.59.197.29:http (ESTABLISHED) chrome 3708 michal 69u IPv4 149458 0t0 TCP ubuntudesktop.local:53771->69.59.197.29:http (ESTABLISHED) chrome 3708 michal 119u IPv4 146963 0t0 TCP ubuntudesktop.local:46290->we-in-f139.1e100.net:http (ESTABLISHED) chrome 3708 michal 120u IPv4 146964 0t0 TCP ubuntudesktop.local:46291->we-in-f139.1e100.net:http (ESTABLISHED) chrome 3708 michal 146u IPv4 147990 0t0 TCP ubuntudesktop.local:36624->muc03s01-in-f31.1e100.net:http (ESTABLISHED)
来自Apache的ports.conf：
NameVirtualHost *:80 Listen 80 <IfModule mod_ssl.c> Listen 443 </IfModule> <IfModule mod_gnutls.c> Listen 443 </IfModule>
任何帮助都感激不尽。
更新：这是来自/var/log/apache2/error.log的错误日志的内容：
[Mon Nov 05 06:13:28 2012] [notice] Apache/2.2.22 (Ubuntu) configured -- resuming normal operations [Mon Nov 05 06:13:44 2012] [notice] caught SIGTERM, shutting down
更新＃2：唯一的Listen指令是在ports.conf中列出的指令，见上文。
更新＃3： strace输出： sudo strace -f /etc/init.d/apache2 start http://paste.ubuntu.com/1346460/
试试这个命令来查看apache尝试使用的端口：
strace -f /etc/init.d/apache2 start 2>&1 | grep bind
你可能想看看你的Apacheconfiguration，也许有一个重复的Listen指令。
如果你提供了你的Apache的错误日志的输出，这也是有帮助的。