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我已经设置了一个远程 rsyslog 服务器进行测试，但我似乎无法让它从远程系统登录。我的桌面（Windows）上有一个名为“Syslog Test Message Utility 1.0”的应用程序，它在 UDP 514 上发送测试系统日志消息。我看到该消息出现在端口 514 上的 Centos 框上（使用 Wireshark 界面），但没有相应的行出现在/var/log/messages 正如我所料。

我已经验证了日志记录确实有效（例如记录器测试），但不是来自远程系统。这是我的 etc/rsyslog.conf 文件..

# 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 ####

# The imjournal module bellow is now used as a message source instead of imuxsock.
$ModLoad imuxsock # provides support for local system logging (e.g. via logger command)
$ModLoad imjournal # provides access to the systemd journal
$ModLoad imklog # reads kernel messages (the same are read from journald)
$ModLoad immark  # provides --MARK-- message capability

# Provides UDP syslog reception
$ModLoad imudp
$UDPServerRun 514

# Provides TCP syslog reception
$ModLoad imtcp
$InputTCPServerRun 514

#### GLOBAL DIRECTIVES ####

# Where to place auxiliary files
$WorkDirectory /var/lib/rsyslog

# Use default timestamp format
$ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat

# File syncing capability is disabled by default. This feature is usually not required,
# not useful and an extreme performance hit
#$ActionFileEnableSync on

# Include all config files in /etc/rsyslog.d/
$IncludeConfig /etc/rsyslog.d/*.conf

# Turn off message reception via local log socket;
# local messages are retrieved through imjournal now.
#$OmitLocalLogging on

# File to store the position in the journal
$IMJournalStateFile imjournal.state


#### RULES ####

# Log all kernel messages to the console.
# Logging much else clutters up the screen.
kern.*                                                 /dev/console

# 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

# The authpriv file has restricted access.
authpriv.*                                              /var/log/secure

# Log all the mail messages in one place.
mail.*                                                  -/var/log/maillog


# Log cron stuff
cron.*                                                  /var/log/cron

# Everybody gets emergency messages
*.emerg                                                 :omusrmsg:*

# Save news errors of level crit and higher in a special file.
uucp,news.crit                                          /var/log/spooler

# Save boot messages also to boot.log
local7.*                                                /var/log/boot.log


# ### begin forwarding rule ###
# The statement between the begin ... end define a SINGLE forwarding
# rule. They belong together, do NOT split them. If you create multiple
# forwarding rules, duplicate the whole block!
# Remote Logging (we use TCP for reliable delivery)
#
# An on-disk queue is created for this action. If the remote host is
# down, messages are spooled to disk and sent when it is up again.
#$ActionQueueFileName fwdRule1 # unique name prefix for spool files
#$ActionQueueMaxDiskSpace 1g   # 1gb space limit (use as much as possible)
#$ActionQueueSaveOnShutdown on # save messages to disk on shutdown
#$ActionQueueType LinkedList   # run asynchronously
#$ActionResumeRetryCount -1    # infinite retries if host is down
# remote host is: name/ip:port, e.g. 192.168.0.1:514, port optional
# ### end of the forwarding rule ###

并且我已经验证主机正在按预期监听端口 514

tcp        0      0 0.0.0.0:514             0.0.0.0:*               LISTEN      15273/rsyslogd      
tcp6       0      0 :::514                  :::*                    LISTEN      15273/rsyslogd      
udp        0      0 0.0.0.0:514             0.0.0.0:*                           15273/rsyslogd      
udp6       0      0 :::514                  :::*                                15273/rsyslogd

我什至不确定接下来要查找什么。我似乎无法弄清楚为什么来自 Syslog 应用程序的消息没有在我的消息文件中创建日志条目。

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1 回答 1

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事实证明，CentOS 7（我假设是 RHEL 7）除了 iptables 之外还有一个名为 firewalld 的防火墙。在我的开发环境中禁用此防火墙后，我能够成功地将系统日志记录到 514。

systemctl disable firewalld systemctl stop firewalld systemctl status firewalld

禁用防火墙无疑是矫枉过正，因为我确信您可以为 514 创建规则，但由于我的服务器在实验室中……在我的情况下是可以接受的。

于 2015-01-29T04:16:53.670 回答