我一直在试图让rsyslog通过TLS传输，目前还没有运气。
我的configuration似乎有些问题，但我无法确定。
这是我的服务器conf文件：
# rsyslog v5 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 #### $ModLoad imuxsock # provides support for local system logging (eg via logger command) $ModLoad imklog # provides kernel logging support (previously done by rklogd) $ModLoad immark # provides --MARK-- message capability $ModLoad imgssapi # provides GSSAPI syslog reception # Provides TCP syslog reception $ModLoad imtcp $InputTCPServerRun 10514 $InputTCPServerStreamDriverMode 1 # run driver in TLS-only mode $InputTCPServerStreamDriverAuthMode anon # client is NOT authenticated # make gtls driver the default $DefaultNetstreamDriver gtls # certificate files $DefaultNetstreamDriverCAFile /etc/pki/tls/private/ca-cert.pem $DefaultNetstreamDriverCertFile /etc/pki/tls/private/rslserver-cert.pem $DefaultNetstreamDriverKeyFile /etc/pki/tls/private/rslserver-key.pem # specify senders you permit to access $AllowedSender TCP, 127.0.0.1, 10.111.1.0/24, *.evoltek.test.com #add: define logfiles ## /var/log/secure $template Auth_log,"/var/log/secure.d/%fromhost%/%$year%-%$month%.secure" ## /var/log/messages $template Msg_log,"/var/log/secure.d/%fromhost%/%$year%-%$month%.messages" ## /var/log/maillog $template Mail_log,"/var/log/secure.d/%fromhost%/%$year%-%$month%.maillog" ## /var/log/cron $template Cron_log,"/var/log/secure.d/%fromhost%/%$year%-%$month%.cron" ## /var/log/spooler $template Spool_log,"/var/log/secure.d/%fromhost%/%$year%-%$month%.spooler" ## /var/log/boot.log $template Boot_log,"/var/log/secure.d/%fromhost%/%$year%-%$month%.boot.log" ## emergency messages "*.emerg" $template Emerg_log,"/var/log/secure.d/%fromhost%/%$year%-%$month%.emerg" #### GLOBAL DIRECTIVES #### # Use default timestamp format $ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat # Include all config files in /etc/rsyslog.d/ $IncludeConfig /etc/rsyslog.d/*.conf #### RULES #### # Log anything (except mail) of level info or higher. # Don't log private authentication messages! *.info;mail.none;authpriv.none;cron.none -?Msg_log # The authpriv file has restricted access. authpriv.* -?Auth_log # Log all the mail messages in one place. mail.* -?Mail_log # Log cron stuff cron.* -?Cron_log # Everybody gets emergency messages *.emerg -?Emerg_log # Save news errors of level crit and higher in a special file. uucp,news.crit -?Spool_log # Save boot messages also to boot.log local7.* -?Boot_log 这是我的客户端conf文件：
# rsyslog v5 configuration file # certificate files $DefaultNetstreamDriverCAFile /etc/pki/tls/private/ca-cert.pem $DefaultNetstreamDriverCertFile /etc/pki/tls/private/rslclient-cert.pem $DefaultNetstreamDriverKeyFile /etc/pki/tls/private/rslclient-key.pem $ModLoad imuxsock.so $ModLoad imklog.so $ModLoad imtcp $DefaultNetstreamDriver gtls $ActionSendStreamDriverAuthMode anon $ActionSendStreamDriverMode 1 # 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 * # 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 *.* @@10.111.1.151:10514
我已经按照本指南创build了证书： http : //kb.kristianreese.com/index.php?View=entry&EntryID=148
我的testing环境没有FQDN，所以我留下了空白的DN域和FQDN域，并填充了IP域。
在CentOS / RedHat中，您还可以在SElinux中启用SSL rsyslog端口。 像semanage port -a -t syslogd_port_t -p tcp 10514应该做的伎俩。
你可以用sudo semanage port -l| grep syslog来检查你当前的系统日志端口 sudo semanage port -l| grep syslog
你也可以尝试在debugging模式下运行rsyslog，看看发生了什么事情：然后停止rsyslog守护进程
export RSYSLOG_DEBUGLOG="/path/to/debuglog"
export RSYSLOG_DEBUG="Debug"
现在启动rsyslog：
rsyslogd -dn
要检查使用的语法是否有效，请使用：
rsyslogd -N 1
我找不到rsyslog 5.8的工作configuration（来自CentOS仓库）。
我已经安装，而不是官方的rsyslog回购，并得到了rsyslog 7.6.0启动并在几分钟内运行此configuration。
Rsyslog 5.8与Centos 6.9适合我
https://www.youtube.com/watch?v=pgcdHmsfmJM&t=3s
在CA（证书颁发机构）上创build证书
sudo mkidr /etc/ssl/rsyslog/ cd /etc/ssl/rsyslog/
安装gnutls-utils
sudo yum install -y gnutls-utils
生成CA私钥（保护这个KEY！）
sudo certtool --generate-privkey --outfile CA-key.pem sudo chmod 400 CA-key.pem
生成CA公钥
sudo certtool --generate-self-signed --load-privkey CA-key.pem --outfile CA.pem Common name: CA.EXAMPLE.COM The certificate will expire in (days): 3650 Does the certificate belong to an authority? (Y/N): y Will the certificate be used to sign other certificates? (Y/N): y Will the certificate be used to sign CRLs? (y/N): y
在CA（证书颁发机构）上创buildSERVERS私钥
sudo certtool --generate-privkey --outfile SERVER-key.pem --bits 2048
为SERVER创build证书请求
sudo certtool --generate-request --load-privkey SERVER-key.pem --outfile SERVER-request.pem Common name: SERVER.EXAMPLE.COM
签署SERVER密钥并允许密钥对由其他服务器信任
sudo certtool --generate-certificate --load-request SERVER-request.pem --outfile SERVER-cert.pem --load-ca-certificate CA.pem --load-ca-privkey CA-key.pem The certificate will expire in (days): 1000 Is this a TLS web client certificate? (Y/N): y Is this also a TLS web server certificate? (y/N): y Enter a dnsName of the subject of the certificate: SERVER.EXAMPLE.COM
在CA（证书颁发机构）上创buildCLIENT私钥
sudo certtool --generate-privkey --outfile CLIENT-key.pem --bits 2048
为CLIENT创build证书请求
sudo certtool --generate-request --load-privkey CLIENT-key.pem --outfile CLIENT-request.pem Common name: CLIENT.EXAMPLE.ORG
签署CLIENT密钥并允许密钥对被其他服务器信任
sudo certtool --generate-certificate --load-request CLIENT-request.pem --outfile CLIENT-cert.pem --load-ca-certificate CA.pem --load-ca-privkey CA-key.pem The certificate will expire in (days): 1000 Is this a TLS web client certificate? (Y/N): y Is this also a TLS web server certificate? (y/N): y Enter a dnsName of the subject of the certificate: CLIENT.EXAMPLE.ORG
删除请求密钥
sudo rm *-request.pem
Scp SERVER专用/密钥和CA.pem到SERVER.EXAMPLE.COM用scp或USBencryption复制证书
sudo -u root scp -i ~/.ssh/id_rsa CA.pem SERVER-* [email protected]:/etc/ssl/rsyslog/
Scp CLIENT私钥/和CA.pem到CLIENT.EXAMPLE.COM
sudo -u root scp -i ~/.ssh/id_rsa CA.pem CLIENT-* [email protected]:/etc/ssl/rsyslog/
在SERVER和CLIENT上安装gtls驱动程序
sudo yum install rsyslog-gnutls -y
configurationSERVER
sudo vi /etc/rsyslog.d/rsyslog-tls.conf # Add # Listen for TCP $ModLoad imtcp # Set gtls driver $DefaultNetstreamDriver gtls # Certs $DefaultNetstreamDriverCAFile /etc/ssl/rsyslog/CA.pem $DefaultNetstreamDriverCertFile /etc/ssl/rsyslog/SERVER-cert.pem $DefaultNetstreamDriverKeyFile /etc/ssl/rsyslog/SERVER-key.pem # Auth mode $InputTCPServerStreamDriverAuthMode x509/name # Only allow EXAMPLE.COM domain $InputTCPServerStreamDriverPermittedPeer *.EXAMPLE.COM # Only use TLS $InputTCPServerStreamDriverMode 1 # Listen on port 6514 # If you want to use other port configure selinux $InputTCPServerRun 6514
在防火墙上打开端口6514
sudo vi /etc/sysconfig/iptables -A INPUT -m state --state NEW -m tcp -p tcp --dport 6514 -j ACCEPT sudo /etc/init.d/iptables reload
重新启动rsyslog守护进程
sudo /etc/init.d/rsyslog restart
configurationCLIENT
sudo vi /etc/rsyslog.d/rsyslog-tls.conf # Add # Set gtls driver $DefaultNetstreamDriver gtls # Certs $DefaultNetstreamDriverCAFile /etc/ssl/rsyslog/CA.pem $DefaultNetstreamDriverCertFile /etc/ssl/rsyslog/CLIENT-cert.pem $DefaultNetstreamDriverKeyFile /etc/ssl/rsyslog/CLIENT-key.pem # Auth mode $ActionSendStreamDriverAuthMode x509/name # Only send log to SERVER.EXAMPLE.COM host $ActionSendStreamDriverPermittedPeer SERVER.EXAMPLE.COM # Only use TLS $ActionSendStreamDriverMode 1 # Forward everithing to SERVER.EXAMPLE.COM # If you use hostnames instead of IP configure DNS or /etc/hosts *.* @@SERVER.EXAMPLE.COM:6514
重新启动rsyslog守护进程
sudo /etc/init.d/rsyslog restart
要在SERVER上testing，请运行tcpdump并从CLIENT发送日志
sudo yum install tcpdump -y sudo tcpdump -i eth0 tcp port 6514 -X -s 0 -nn