How To Check Error Logs In Linux Server
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2014 in Commands, File system, LinuxI am how to check logs in linux server a new Linux user. I would like to
Linux Log Files Explained
know where are the log files located under Debian/Ubuntu or CentOS/RHEL/Fedora Linux
Linux /var/log/messages
server? How do I open or view log files on Linux operating systems? Almost all logfiles are located under /var/log directory
How To View Logs In Linux Command Line
and its sub-directories on Linux. You can change to this directory using the cd command. You need be the root user to view or access log files on Linux or Unix like operating systems. You can use the following commands to see how to view log files in linux the log files:less commandmore commandcat commandgrep commandtail commandzcat commandzgrep commandzmore commandHow do I view log files on Linux?Open the Terminal or login as root user using ssh command. Go to /var/log directory using the following cd command: # cd /var/log
To list files use the following ls command: # ls Sample outputs from RHEL 6.x server:anaconda.ifcfg.log boot.log-20111225 cron-20131110.gz maillog-20111218 messages-20131103.gz secure-20131027.gz spooler-20131117.gz up2date-20131117.gz anaconda.log btmp cron-20131117.gz maillog-20111225 messages-20131110.gz secure-20131103.gz squid uptrack.log anaconda.program.log btmp-20120101 cups maillog-20120101 messages-20131117.gz secure-20131110.gz swinstall.d uptrack.log.1 anaconda.storage.log btmp-20131101.gz dkms_autoinstaller maillog-20131027.gz mysqld.log secure-20131117.gz tallylog uptrack.log.2 anaconda.syslog collectl dmesg maillog-20131103.gz ntpstats setroubleshoot UcliEvt.log varnish anaconda.yum.log ConsoleKit dmesg.old maillog-20131110.gz prelink spooler up2date wtmp arcconfig.xml cron dracut.log maillog-20131117.gz rhsm spooler-20111211 up2date-20111211 yum.log atop cron-20111211 dracut.log-20120101 messages sa spooler-20111218 up2date-20111218 yum.log-20120101 audit cron-20111218 dracut.log-20130101.gz messages-201112Computing Tutorials Open Source Pro LearnWhat is Linux? Training Certification Events Webinars CommunityParticipate linux log command Q&A Forums Blogs ResourcesNewsletter Distributions Publications Infographics Photos Videos what is /var/log/messages Jobs elsisi February 16, 2015 Command To Check Error Logs In SSH Forums:Command Line how to check log files in unix Hello i'am trying to instal a script on my site , but i have an error " Internal Server Error " and i don't http://www.cyberciti.biz/faq/linux-log-files-location-and-how-do-i-view-logs-files/ know what is this so,what's Command To Check Error Logs In SSH for specific user ? i'll usr root to accese , and want to know error logs for a user on my server what's Command To Check Error Logs please ? Print This Log in or register https://www.linux.com/forums/command-line/command-check-error-logs-ssh to post comments Like (0 likes) 1 Comments Comments RecommendedDate March 1, 2015 #2 matugm If you are using Apache then try tail -f /var/log/apache2/error.log Top Log in or register to post comments Like Leave this field blank Click Here! Advertisement Training See all LFD450 Embedded Linux Development October 24, 2016 Learn more LFS462 Linux KVM Virtualization October 24, 2016 Learn more LFD430 Developing Linux Device Drivers October 31, 2016 Learn more Newsletter NewsEnterprise Desktop Mobile & Embedded Open Source Linux Kernel DevOps Networking Cloud Computing Tutorials Open Source Pro LearnWhat is Linux? Training Certification Events Webinars CommunityParticipate Q&A Forums Blogs ResourcesNewsletter Distributions Publications Infographics Photos Videos Jobs About Linux.comTerms of Use Privacy Policy Editorial Policy Contact The Linux Foundation is a non-profit consortium enabling collaboration and innovation through an open source development model. Learn More © 2016 The Linux Foundation
and Logs Linux maintains several system logs that help you administer a Linux system by informing you of important events. Probably http://www.oreilly.com/openbook/debian/book/ch07_04.html the most important log is the file /var/log/messages, which records a variety of events, including system error messages, system startups, and system shutdowns. Like most other Linux files, the file contains ASCII text, so you can view it with a text editor or the text processing commands described in Chapter 13. A special command, how to dmesg, makes it easy to view the log messages related to the most recent system startup. If your system is behaving unusually, use dmesg to quickly see if something went wrong during the system startup sequence. Of course, you must have some way of determining what's usual and unusual among the many messages emitted during how to check system startup. The best way to do so is to print the output of the dmesg command and keep it on hand for comparison with suspicious output. If your system has an attached printer, you can print the output of dmesg by entering the following command: dmesg | lpr Other logs found in the /var/log directory include: apache A directory that contains two log files pertaining to the Apache web server, access.log and error.log. exim A directory that contains several log files pertaining to the exim mail transfer agent. nmb and smb Files that contain log entries pertaining to Samba, the Microsoft-compatible networking server. ppp.log A file the contains log entries pertaining to PPP. 7.3 Starting and Stopping the System and Services 7.5 Setting the System Time and Time Zone Back to: Learning Debian GNU/Linux oreilly.com Home | O'Reilly Bookstores | How to Order | O'Reilly Contacts International | About O'Reilly | Affiliated Companies | Privacy Policy © 2001, O'Reilly & Associates, Inc.