# rsyslog configuration file # For more information see /usr/share/doc/rsyslog-*/rsyslog_conf.html # If you experience problems, see http://www.rsyslog.com/doc/troubleshoot.html #### MODULES #### ####模块#### # The imjournal module bellow is now used as a message source instead of imuxsock #加载输入模块(消息来源) $ModLoad imuxsock # provides support for local system logging (e.g. via logger command)(提供对本地系统日志的支持(例如通过记录器命令)) $ModLoad imjournal # provides access to the systemd journal(提供对systemd日志的访问) #$ModLoad imklog # reads kernel messages (the same are read from journald)(读取内核消息(从日志读取相同的消息)) #$ModLoad immark # provides --MARK-- message capability(提供--MARK--消息功能) # Provides UDP syslog reception #接收使用UDP 协议转发过来的日志 $ModLoad imudp $UDPServerRun # Provides TCP syslog reception #接收使用TCP 协议转发过来的日志 #$ModLoad imtcp #$InputTCPServerRun #注意:两个协议可以同时监听 #### GLOBAL DIRECTIVES ####
#定义日志格式默认模板 # Where to place auxiliary files $WorkDirectory /var/lib/rsyslog # Use default timestamp format $ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat $template myFormat,"%timestamp% %fromhost-ip% %msg%\n" #定义模板 $template tplname, string/list/subtree/plugin $ActionFileDefaultTemplate myFormat #默认使用myFormat模板 # File syncing capability is disabled by default. This feature is usually not required, #默认情况下禁用文件同步功能。 通常不需要此功能 # not useful and an extreme performance hit #$ActionFileEnableSync on # Include all config files in /etc/rsyslog.d/ #将所有配置文件包含在/etc/rsyslog.d/ $IncludeConfig /etc/rsyslog.d/*.conf # Turn off message reception via local log socket; #通过本地日志socket,关闭信息接收 # local messages are retrieved through imjournal now. $OmitLocalLogging on # File to store the position in the journal #文件存储在日志中的位置 $IMJournalStateFile imjournal.state #### RULES #### #定义规则 # Log all kernel messages to the console. # Logging much else clutters up the screen. #kern.* /dev/console #关于内核的所有日志都放到/dev/console(控制台)
# Log anything (except mail) of level info or higher. # Don't log private authentication messages! *.info;mail.none;authpriv.none;cron.none /var/log/messages #记录所有日志类型的info级别以及大于info级别的信息到/var/log/messages, #但是mail邮件信息,authpriv验证方面的信息和cron时间任务相关的信息除外 # The authpriv file has restricted access. #authpriv验证相关的所有信息存放在/var/log/secure authpriv.* /var/log/secure # Log all the mail messages in one place. #邮件的所有信息存放在/var/log/maillog; 这里有一个-符号, 表示是使用异步的方式记录, 因为日志一般会比较大 mail.* -/var/log/maillog # Log cron stuff #计划任务有关的信息存放在/var/log/cron cron.* /var/log/cron # Everybody gets emergency messages #记录所有的大于等于emerg级别信息, 以wall方式发送给每个登录到系统的人 *.emerg :omusrmsg:* # Save news errors of level crit and higher in a special file. #记录uucp,news.crit等存放在/var/log/spooler uucp,news.crit /var/log/spooler # Save boot messages also to boot.log #启动的相关信息存放在 /var/log/boot.log local7.* /var/log/boot.log # ### begin forwarding rule ### #转发规则 # The statement between the begin ... end define a SINGLE forwarding #begin ... end之间的语句定义了一个SINGLE转发 # rule. They belong together, do NOT split them. If you create multiple #规则。 他们属于一起,不要分裂。 如果你创建多个 # forwarding rules, duplicate the whole block! #转发规则,重复整个块 # Remote Logging (we use TCP for reliable delivery) #远程日志记录(我们使用TCP可靠的传送) # An on-disk queue is created for this action. If the remote host is #为此操作创建一个磁盘队列。 如果远程主机是down掉,消息被假脱机到磁盘,并在重新启动时发送。 # down, messages are spooled to disk and sent when it is up again. #$ActionQueueFileName fwdRule1 # unique name prefix for spool files #假脱机文件的唯一名称前缀 #$ActionQueueMaxDiskSpace 1g # 1gb space limit (use as much as possible) #1gb空间限制(尽可能多使用) #$ActionQueueSaveOnShutdown on # save messages to disk on shutdown #关闭时将消息保存到磁盘 #$ActionQueueType LinkedList # run asynchronously #使用链接列表模式 #$ActionResumeRetryCount -1 # infinite retries if host is down #如果主机关闭,则会无限重试 # remote host is: name/ip:port, e.g. 192.168.0.1:514, port optional #*.* @@remote-host:514 *.* @@localhost:5000 #@@表示通过tcp协议发送 @表示通过udp进行转发 # ### end of the forwarding rule ###
延伸知识点:
1. 假脱机
在信息学中,假脱机(外部设备联机并行操作,SPOOL,Simultaneous Peripheral Operations On-line)是一种数据缓冲,指传输数据的过程中,将数据存放在临时工作区中。其它程序可以在之后的任意时间点对其存取。通常英语动词spool可以指储存设备的行为,具体表现为物理意义上的缠或卷,就比如说磁带机。最常见的假脱机的应用是打印缓存,即把打印任务加入到队列。