linux下qmail配置问题集锦
1、指定的内存使用限度是可以依赖于你是用的的硬件平台和操作系统作适当提高的. 当用telnet连接到110端口失败或者POP3连接以难以理解的方式失败情况下, 或者你查看到如下错误信息: tcpserver: error while loading shared libraries: libc.so.6: failed to map segment from shared object: Cannot allocate memory 考虑是否softlimit命令引起
可能需要根据你的操作系统和硬件平台的不同, 调整softlimit命令的的内存限制参数.
即，/var/qmail/supervise/qmail-smtpd/run 文件中的2000000加大到3000000或5000000或其他
#!/bin/sh QMAILDUID=`id -u qmaild` NOFILESGID=`id -g qmaild` MAXSMTPD=`cat /var/qmail/control/concurrencyincoming` LOCAL=`head -1 /var/qmail/control/me` if [ -z "$QMAILDUID" -o -z "$NOFILESGID" -o -z "$MAXSMTPD" -o -z "$LOCAL" ]; then echo QMAILDUID, NOFILESGID, MAXSMTPD, or LOCAL is unset in echo /var/qmail/supervise/qmail-smtpd/run exit 1 fi if [ ! -f /var/qmail/control/rcpthosts ]; then echo "No /var/qmail/control/rcpthosts!" echo "Refusing to start SMTP listener because it'll create an open relay" exit 1 fi exec /usr/local/bin/softlimit -m 2000000 \ /usr/local/bin/tcpserver -v -R -l "$LOCAL" -x /etc/tcp.smtp.cdb -c "$MAXSMTPD" \ -u "$QMAILDUID" -g "$NOFILESGID" 0 smtp /var/qmail/bin/qmail-smtpd 2>&1
2、Sorry,_no_mailbox_here_by_that_name I added | /var/vpopmail/bin/vdelivermail '' bounce-no-mailbox to /var/qmail/control/defaultdelivery. (don't know if this helped or is even necessary)
Then deleted the contents of /var/qmail/control/locals restarted svscan and everything began to work again.
3、deferral: Uh-oh:_.qmail_has_prog_delivery_but_has_x_bit_set._(#4.7.0) cd /home/vpopmail/domains chmod 700 yuming.cn cd yuming.cn chmod -R 777 * chmod 600 .qmail-default
4、vpopmail与mysql断开连接 authvchkpw: trying this module vmysql: sql error[3]: MySQL server has gone away vchkpw: user does not exist authvchkpw: REJECT - try next module
步骤1：加大mysql的wait_time和interactive_timeout（两者保持一致），如： 进入mysql set wait_time=604800 set interactive_timeout=604800
步骤2： 加入vpopmail的补丁vmysql.patch： diff -u vpopmail-5.4.13.org/vmysql.c vpopmail-5.4.13/vmysql.c --- vpopmail-5.4.13.org/vmysql.c 2004-12-16 23:57:34.000000000 +0800 +++ vpopmail-5.4.13/vmysql.c 2006-03-31 09:42:45.000000000 +0800 @@ -188,7 +188,7 @@ { unsigned int timeout = 2;
- if ( update_open != 0 ) return(0); + if ( update_open && (mysql_ping(&mysql_update)==0) ) return(0); update_open = 1;
verrori = load_connection_info(); @@ -238,7 +238,7 @@ int vauth_open_read() { /* if we are already connected, just return */ - if ( read_open != 0 ) return(0); + if ( read_open && (mysql_ping(&mysql_read)==0) ) return(0); read_open = 1;
/* connect to mysql and set the database */
5、courier-authlib模块自动启动 cp courier-authlib.sysvinit /etc/rc.d/init.d/courier-authlib注意要在courier-authlib安装目录 chmod 755 /etc/rc.d/init.d/courier-authlib /sbin/chkconfig --level 0123456 courier-authlib on
6、courier-imap模块自动启动 cp courier-imap.sysvinit /etc/rc.d/init.d/courier-imap chmod 755 /etc/rc.d/init.d/courier-imap /sbin/chkconfig --level 0123456 courier-imap on