How To Install rsyslog on CentOS 8
rsyslog is Enhanced system logging and kernel message trapping daemon
Introduction
In this tutorial we learn how to install rsyslog on CentOS 8.
What is rsyslog
Rsyslog is an enhanced, multi-threaded syslog daemon. It supports MySQL, syslog/TCP, RFC 3195, permitted sender lists, filtering on any message part, and fine grain output format control. It is compatible with stock sysklogd and can be used as a drop-in replacement. Rsyslog is simple to set up, with advanced features suitable for enterprise-class, encryption-protected syslog relay chains.
We can use yum or dnf to install rsyslog on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install rsyslog.
Install rsyslog on CentOS 8 Using dnf
Update yum database with dnf using the following command.
sudo dnf makecache --refresh
The output should look something like this:
CentOS Linux 8 - AppStream 43 kB/s | 4.3 kB 00:00
CentOS Linux 8 - BaseOS 65 kB/s | 3.9 kB 00:00
CentOS Linux 8 - ContinuousRelease 43 kB/s | 3.0 kB 00:00
CentOS Linux 8 - Extras 23 kB/s | 1.5 kB 00:00
CentOS Linux 8 - FastTrack 40 kB/s | 3.0 kB 00:00
CentOS Linux 8 - HighAvailability 36 kB/s | 3.9 kB 00:00
CentOS Linux 8 - Plus 24 kB/s | 1.5 kB 00:00
CentOS Linux 8 - PowerTools 50 kB/s | 4.3 kB 00:00
Extra Packages for Enterprise Linux Modular 8 - x86_64 13 kB/s | 9.2 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64 24 kB/s | 8.5 kB 00:00
Metadata cache created.
After updating yum database, We can install rsyslog using dnf by running the following command:
sudo dnf -y install rsyslog
Install rsyslog on CentOS 8 Using yum
Update yum database with yum using the following command.
sudo yum makecache --refresh
The output should look something like this:
CentOS Linux 8 - AppStream 43 kB/s | 4.3 kB 00:00
CentOS Linux 8 - BaseOS 65 kB/s | 3.9 kB 00:00
CentOS Linux 8 - ContinuousRelease 43 kB/s | 3.0 kB 00:00
CentOS Linux 8 - Extras 23 kB/s | 1.5 kB 00:00
CentOS Linux 8 - FastTrack 40 kB/s | 3.0 kB 00:00
CentOS Linux 8 - HighAvailability 36 kB/s | 3.9 kB 00:00
CentOS Linux 8 - Plus 24 kB/s | 1.5 kB 00:00
CentOS Linux 8 - PowerTools 50 kB/s | 4.3 kB 00:00
Extra Packages for Enterprise Linux Modular 8 - x86_64 13 kB/s | 9.2 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64 24 kB/s | 8.5 kB 00:00
Metadata cache created.
After updating yum database, We can install rsyslog using yum by running the following command:
sudo yum -y install rsyslog
How To Uninstall rsyslog on CentOS 8
To uninstall only the rsyslog package we can use the following command:
sudo dnf remove rsyslog
rsyslog Package Contents on CentOS 8
/etc/logrotate.d/syslog
/etc/pki/rsyslog
/etc/rsyslog.conf
/etc/rsyslog.d
/etc/sysconfig/rsyslog
/usr/bin/rsyslog-recover-qi.pl
/usr/lib/.build-id
/usr/lib/.build-id/00
/usr/lib/.build-id/00/64c7b62ef9eeeeafd574cfdf2200aebd13b93a
/usr/lib/.build-id/0d
/usr/lib/.build-id/0d/4665d438815407d92ca956998e513615423975
/usr/lib/.build-id/16
/usr/lib/.build-id/16/e062388cd1a9274f42762385f7a620ad7b8001
/usr/lib/.build-id/20
/usr/lib/.build-id/20/8a5446ed8dfbc6718c230c63329856ca0834e9
/usr/lib/.build-id/21
/usr/lib/.build-id/21/e18a116e4b3332a583e507850fd622f581360b
/usr/lib/.build-id/30
/usr/lib/.build-id/30/dd3d8d708b1c899711bd2090bfa57f7b9f15b2
/usr/lib/.build-id/34
/usr/lib/.build-id/34/398e7234113ba0102d67be0a42b49aaf2b40d1
/usr/lib/.build-id/3b
/usr/lib/.build-id/3b/c69c87fe110051b382768b56aecb1d4ef06c21
/usr/lib/.build-id/43
/usr/lib/.build-id/43/74b44b16f8e775410173b89c10b02cd4a69901
/usr/lib/.build-id/55
/usr/lib/.build-id/55/229bc3991cf1ddb06288ede94f878f72e27fcb
/usr/lib/.build-id/55/c29516ce876e59700605a46db8a13a3a86045c
/usr/lib/.build-id/84
/usr/lib/.build-id/84/df02d240c4cc032f025cab988b5edfce32ed8f
/usr/lib/.build-id/8c
/usr/lib/.build-id/8c/febf999fa692b7745e781d238a8bf28c46da5a
/usr/lib/.build-id/95
/usr/lib/.build-id/95/a90c67e60221cf41291ac030eb52698b8f3f93
/usr/lib/.build-id/9b
/usr/lib/.build-id/9b/4632a2d32b44d138e880cbb24352dd8e6a10c0
/usr/lib/.build-id/9e
/usr/lib/.build-id/9e/0b79cdccaede2fb3aa6aad4189066e45ba9903
/usr/lib/.build-id/9e/840c8ace8c655ddfc5ee04257c3027a621f2bc
/usr/lib/.build-id/a9
/usr/lib/.build-id/a9/4a9fbd839c726de2d7bfd3fc971e01dfe10498
/usr/lib/.build-id/ac
/usr/lib/.build-id/ac/9eb62823d64cd41b71e22cced89b02c1cbe7ec
/usr/lib/.build-id/b7
/usr/lib/.build-id/b7/3ea9d57ce80cd0a989e53fa3a990d34e0cfdd1
/usr/lib/.build-id/be
/usr/lib/.build-id/be/cac1ab4fd06210f62da7350b33301c2c7cd1e4
/usr/lib/.build-id/c1
/usr/lib/.build-id/c1/7e4304a41d7bc1f9965353091326ed5177ddc5
/usr/lib/.build-id/c2
/usr/lib/.build-id/c2/9b92e71c8b2d134c8536480c0421580fa494eb
/usr/lib/.build-id/c5
/usr/lib/.build-id/c5/ae5512188caba24ae061d3ebd1be87731f72de
/usr/lib/.build-id/ce
/usr/lib/.build-id/ce/38d563daca0f92d21fe4bbe4f20a8741a9721c
/usr/lib/.build-id/d2
/usr/lib/.build-id/d2/3c49dde53e3de32ba42121147b408e1078421d
/usr/lib/.build-id/d6
/usr/lib/.build-id/d6/d2f8b96a8817ecac3d38aa410c543f0d89e7fa
/usr/lib/.build-id/dc
/usr/lib/.build-id/dc/a6c168830ac3f27f09a05f3a0557c755d28944
/usr/lib/.build-id/e3
/usr/lib/.build-id/e3/faa030b5a93910a757daa805eafc326469f128
/usr/lib/.build-id/e6
/usr/lib/.build-id/e6/887ed0b81bae7bdca437270f3a85c816fac6a0
/usr/lib/.build-id/e8
/usr/lib/.build-id/e8/3dea777c06dd6961aa593903e3a772df62217b
/usr/lib/.build-id/fb
/usr/lib/.build-id/fb/5d75fe04e07a178aa679dcec5e56749e3e38c2
/usr/lib/.build-id/fb/8ea9936e7fe6782b7a7da63beab680366aff2f
/usr/lib/.build-id/fe
/usr/lib/.build-id/fe/626468d69bd08f15df8687291eec1e97a343c3
/usr/lib/.build-id/fe/e8fb60a464b0d94487c8a07a3985499dd1a8d4
/usr/lib/systemd/system/rsyslog.service
/usr/lib64/rsyslog
/usr/lib64/rsyslog/fmhash.so
/usr/lib64/rsyslog/fmhttp.so
/usr/lib64/rsyslog/imdiag.so
/usr/lib64/rsyslog/imfile.so
/usr/lib64/rsyslog/imjournal.so
/usr/lib64/rsyslog/imklog.so
/usr/lib64/rsyslog/immark.so
/usr/lib64/rsyslog/impstats.so
/usr/lib64/rsyslog/imptcp.so
/usr/lib64/rsyslog/imtcp.so
/usr/lib64/rsyslog/imudp.so
/usr/lib64/rsyslog/imuxsock.so
/usr/lib64/rsyslog/lmnet.so
/usr/lib64/rsyslog/lmnetstrms.so
/usr/lib64/rsyslog/lmnsd_ptcp.so
/usr/lib64/rsyslog/lmregexp.so
/usr/lib64/rsyslog/lmtcpclt.so
/usr/lib64/rsyslog/lmtcpsrv.so
/usr/lib64/rsyslog/lmzlibw.so
/usr/lib64/rsyslog/mmanon.so
/usr/lib64/rsyslog/mmcount.so
/usr/lib64/rsyslog/mmexternal.so
/usr/lib64/rsyslog/mmutf8fix.so
/usr/lib64/rsyslog/omhttp.so
/usr/lib64/rsyslog/omjournal.so
/usr/lib64/rsyslog/ommail.so
/usr/lib64/rsyslog/omprog.so
/usr/lib64/rsyslog/omstdout.so
/usr/lib64/rsyslog/omtesting.so
/usr/lib64/rsyslog/omuxsock.so
/usr/lib64/rsyslog/pmaixforwardedfrom.so
/usr/lib64/rsyslog/pmcisconames.so
/usr/lib64/rsyslog/pmlastmsg.so
/usr/lib64/rsyslog/pmsnare.so
/usr/sbin/rsyslogd
/usr/share/doc/rsyslog
/usr/share/doc/rsyslog/AUTHORS
/usr/share/doc/rsyslog/COPYING
/usr/share/doc/rsyslog/COPYING.ASL20
/usr/share/doc/rsyslog/COPYING.LESSER
/usr/share/doc/rsyslog/ChangeLog
/usr/share/man/man5/rsyslog.conf.5.gz
/usr/share/man/man8/rsyslogd.8.gz
/var/lib/rsyslog
/etc/logrotate.d/syslog
/etc/pki/rsyslog
/etc/rsyslog.conf
/etc/rsyslog.d
/etc/sysconfig/rsyslog
/usr/bin/rsyslog-recover-qi.pl
/usr/lib/.build-id
/usr/lib/.build-id/08
/usr/lib/.build-id/08/967c6dd0d58babcea73e5853852b78d62ba4c6
/usr/lib/.build-id/0f
/usr/lib/.build-id/0f/c441147b7ea825b2f9535e6e1384989133b4b1
/usr/lib/.build-id/1d
/usr/lib/.build-id/1d/71081ca20440b60ca21e771cdf407934dcccdd
/usr/lib/.build-id/1d/f605e1b4c9b9c7c4e5a165c74036ca4a273b65
/usr/lib/.build-id/21
/usr/lib/.build-id/21/93dfe1de2ed6fe5f66b9be899e979addab609e
/usr/lib/.build-id/21/f89cfdf04ac3f1cc7cef094f7556ecbeca4d6c
/usr/lib/.build-id/2b
/usr/lib/.build-id/2b/04560f107b73c3a40a97c699a77c73c1993222
/usr/lib/.build-id/39
/usr/lib/.build-id/39/ab2cf289a01b5043b8c0b7d776b6bde7fc1cc3
/usr/lib/.build-id/3d
/usr/lib/.build-id/3d/e30208ace95c6c27e2b277ed5b8ee12b94e108
/usr/lib/.build-id/3e
/usr/lib/.build-id/3e/58ff00be7dcde8d5b58d8e3c2f8bf8666acae0
/usr/lib/.build-id/44
/usr/lib/.build-id/44/f2f92c279f61965374f3b9d3e90509ef6118ee
/usr/lib/.build-id/49
/usr/lib/.build-id/49/1c52791fcf045d5fba6dacdd5a7d185dee828d
/usr/lib/.build-id/4d
/usr/lib/.build-id/4d/87e876c06f5daccd7452ef3c331b8a6a6e3bc3
/usr/lib/.build-id/55
/usr/lib/.build-id/55/f1aaba73617f728ce278334374579e2ca537f0
/usr/lib/.build-id/58
/usr/lib/.build-id/58/910d2d6700921d391e6dcb5342d5aad88900a0
/usr/lib/.build-id/76
/usr/lib/.build-id/76/71a433dbccdcd18356f3d8efe2c4b2d3475cb4
/usr/lib/.build-id/7a
/usr/lib/.build-id/7a/0cc2afc5bc81e70f6f76a0d85afde0c5391c35
/usr/lib/.build-id/7f
/usr/lib/.build-id/7f/a912f3cc2da71f6acd4da03e29e77da8a5a9cd
/usr/lib/.build-id/84
/usr/lib/.build-id/84/e45933cf19ce7b1ca0e0f8d3776e9e37f142d2
/usr/lib/.build-id/8e
/usr/lib/.build-id/8e/0b6dac41bf7e1269762305fc09ad698d09adb8
/usr/lib/.build-id/99
/usr/lib/.build-id/99/62302ea94131a41032e3aca5291285f937e5d3
/usr/lib/.build-id/9d
/usr/lib/.build-id/9d/64dfa5fbe84006b0f20b4731689de8e89812e5
/usr/lib/.build-id/9d/901af8eb8bc7e65a7c04333031fd77a093a1c5
/usr/lib/.build-id/af
/usr/lib/.build-id/af/674a1ec632534111da24c6e350375394bcf07c
/usr/lib/.build-id/b8
/usr/lib/.build-id/b8/1e9f2bc69dd17093b31b90d631ef25a6029a5d
/usr/lib/.build-id/bf
/usr/lib/.build-id/bf/0b308d55497d254bbcfade94cf5bd7ebc5275c
/usr/lib/.build-id/c3
/usr/lib/.build-id/c3/efa6ab65a107f4d4bd1e883b29519bc676a1c0
/usr/lib/.build-id/ce
/usr/lib/.build-id/ce/508fc6c0785263f00a92ac95b51fc2ef17bdba
/usr/lib/.build-id/cf
/usr/lib/.build-id/cf/4087ff22a31f77b9df699fbc5112566754a785
/usr/lib/.build-id/d3
/usr/lib/.build-id/d3/9977fc4d16c973c77254eaa5d44e19de32b047
/usr/lib/.build-id/d4
/usr/lib/.build-id/d4/666ccd4d5312b7f46cfd8a6238a8933f32cf1f
/usr/lib/.build-id/e8
/usr/lib/.build-id/e8/7ea51194ae5e96bcd4a88ed066d91bb61091f3
/usr/lib/.build-id/eb
/usr/lib/.build-id/eb/ced9a5bef92320e90167f8c00a3efc0d5c019e
/usr/lib/.build-id/ee
/usr/lib/.build-id/ee/479bb1f5665f5d3f21031874073f982543cefb
/usr/lib/.build-id/f4
/usr/lib/.build-id/f4/1122c232cd43d94b6445bd75b5fdb839cd9544
/usr/lib/systemd/system/rsyslog.service
/usr/lib64/rsyslog
/usr/lib64/rsyslog/fmhash.so
/usr/lib64/rsyslog/fmhttp.so
/usr/lib64/rsyslog/imdiag.so
/usr/lib64/rsyslog/imfile.so
/usr/lib64/rsyslog/imjournal.so
/usr/lib64/rsyslog/imklog.so
/usr/lib64/rsyslog/immark.so
/usr/lib64/rsyslog/impstats.so
/usr/lib64/rsyslog/imptcp.so
/usr/lib64/rsyslog/imtcp.so
/usr/lib64/rsyslog/imudp.so
/usr/lib64/rsyslog/imuxsock.so
/usr/lib64/rsyslog/lmnet.so
/usr/lib64/rsyslog/lmnetstrms.so
/usr/lib64/rsyslog/lmnsd_ptcp.so
/usr/lib64/rsyslog/lmregexp.so
/usr/lib64/rsyslog/lmtcpclt.so
/usr/lib64/rsyslog/lmtcpsrv.so
/usr/lib64/rsyslog/lmzlibw.so
/usr/lib64/rsyslog/mmanon.so
/usr/lib64/rsyslog/mmcount.so
/usr/lib64/rsyslog/mmexternal.so
/usr/lib64/rsyslog/mmutf8fix.so
/usr/lib64/rsyslog/omhttp.so
/usr/lib64/rsyslog/omjournal.so
/usr/lib64/rsyslog/ommail.so
/usr/lib64/rsyslog/omprog.so
/usr/lib64/rsyslog/omstdout.so
/usr/lib64/rsyslog/omtesting.so
/usr/lib64/rsyslog/omuxsock.so
/usr/lib64/rsyslog/pmaixforwardedfrom.so
/usr/lib64/rsyslog/pmcisconames.so
/usr/lib64/rsyslog/pmlastmsg.so
/usr/lib64/rsyslog/pmsnare.so
/usr/sbin/rsyslogd
/usr/share/doc/rsyslog
/usr/share/doc/rsyslog/AUTHORS
/usr/share/doc/rsyslog/COPYING
/usr/share/doc/rsyslog/COPYING.ASL20
/usr/share/doc/rsyslog/COPYING.LESSER
/usr/share/doc/rsyslog/ChangeLog
/usr/share/man/man5/rsyslog.conf.5.gz
/usr/share/man/man8/rsyslogd.8.gz
/var/lib/rsyslog
References
Summary
In this tutorial we learn how to install rsyslog on CentOS 8 using yum and dnf.