Error Log Location Linux
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FreeBSD, HP-UX Unix, Linux, Openbsd, RedHat and Friends, Solaris-Unix, Suse, Ubuntu LinuxQ. How do I find out Apache http
Httpd Logs Location
server log files location? How do I change the location of linux /var/log/messages Apache log file under Linux / UNIX operating system? A. There are two type of apache linux log files explained httpd server log files:
Apache Error Log FileAll apache errors / diagnostic information other errors found during serving requests are logged to this file. Location ofHow To Check Logs In Linux Server
error log is set using ErrorLog directive. If there is any problem, you should first take a look at this file using cat, grep or any other UNIX / Linux text utilities. This apache log file often contain details of what went wrong and how to fix it. Default error log file location:RHEL
How To View Logs In Linux Command Line
/ Red Hat / CentOS / Fedora Linux Apache error file location - /var/log/httpd/error_logDebian / Ubuntu Linux Apache error log file location - /var/log/apache2/error.logFreeBSD Apache error log file location - /var/log/httpd-error.logTo find exact apache log file location, you can use grep command: # grep ErrorLog /usr/local/etc/apache22/httpd.conf
# grep ErrorLog /etc/apache2/apache2.conf
# grep ErrorLog /etc/httpd/conf/httpd.conf Sample output:# ErrorLog: The location of the error log file. # If you do not specify an ErrorLog directive within a ErrorLog "/var/log/httpd-error.log" Apache Access Log FileApache server records all incoming requests and all requests processed to a log file. The format of the access log is highly configurable. The location and content of the access log are controlled by the CustomLog directive. Default apache access log file location:RHEL / Red Hat / CentOS / Fedora Linux Apache access file location - /var/log/httpd/access_logDebian / Ubuntu Linux Apache access log file location - /var/log/apache2/access.logFreeBSD Apache access log file location - /var/log/httpd-access.logTo find
know where the log files are located, and what is contained in each and every log file. When your systems are running smoothly, take some what is /var/log/messages time to learn and understand the content of various log files, which will help
Linux Log Command
you when there is a crisis and you have to look though the log files to identify the issue. /etc/rsyslog.conf how to view log files in linux controls what goes inside some of the log files. For example, following is the entry in rsyslog.conf for /var/log/messages. $ grep "/var/log/messages" /etc/rsyslog.conf *.info;mail.none;authpriv.none;cron.none /var/log/messages In the above output, *.info indicates that all http://www.cyberciti.biz/faq/apache-logs/ logs with type INFO will be logged. mail.none,authpriv.none,cron.none indicates that those error messages should not be logged into the /var/log/messages file. You can also specify *.none, which indicates that none of the log messages will be logged. The following are the 20 different log files that are located under /var/log/ directory. Some of these log files are distribution specific. For example, you'll see dpkg.log on Debian http://www.thegeekstuff.com/2011/08/linux-var-log-files based systems (for example, on Ubuntu). /var/log/messages - Contains global system messages, including the messages that are logged during system startup. There are several things that are logged in /var/log/messages including mail, cron, daemon, kern, auth, etc. /var/log/dmesg - Contains kernel ring buffer information. When the system boots up, it prints number of messages on the screen that displays information about the hardware devices that the kernel detects during boot process. These messages are available in kernel ring buffer and whenever the new message comes the old message gets overwritten. You can also view the content of this file using the dmesg command. /var/log/auth.log - Contains system authorization information, including user logins and authentication machinsm that were used. /var/log/boot.log - Contains information that are logged when the system boots /var/log/daemon.log - Contains information logged by the various background daemons that runs on the system /var/log/dpkg.log - Contains information that are logged when a package is installed or removed using dpkg command /var/log/kern.log - Contains information logged by the kernel. Helpful for you to troubleshoot a custom-built kernel. /var/log/lastlog - Displays the recent login information for all the users. This is not an ascii file. You should use last
In submit Tutorials Questions Projects Meetups Main Site logo-horizontal DigitalOcean Community Menu Tutorials Questions Projects Meetups Main Site Sign Up Log In submit View All Results By: Sadequl Hussain Subscribe Subscribed Share Contents https://www.digitalocean.com/community/tutorials/how-to-view-and-configure-linux-logs-on-ubuntu-and-centos Contents We hope you find this tutorial helpful. In addition to guides like this one, we provide simple cloud infrastructure for developers. Learn more → 9 How To View and Configure Linux Logs on Ubuntu and http://ask.xmodulo.com/apache-error-log-location-linux.html Centos Posted Dec 17, 2013 164.4k views Logging Linux Basics CentOS Ubuntu Debian Introduction Linux system administrators often need to look at log files for troubleshooting purposes. In fact, this is the first thing any how to sysadmin would do. Linux and the applications that run on it can generate all different types of messages, which are recorded in various log files. Linux uses a set of configuration files, directories, programs, commands and daemons to create, store and recycle these log messages. Knowing where the system keeps its log files and how to make use of related commands can therefore help save valuable time during troubleshooting. In logs in linux this tutorial, we will have a look at different parts of the Linux logging mechanism. Disclaimer The commands in this tutorial were tested in plain vanilla installations of CentOS 6.4, Ubuntu 12 and Debian 7. Default Log File Location The default location for log files in Linux is /var/log. You can view the list of log files in this directory with a simple ls -l /var/log command. This is what I see in my CentOS system: [root@TestLinux ~]# ls -l /var/log total 1472 -rw-------. 1 root root 4524 Nov 15 16:04 anaconda.ifcfg.log -rw-------. 1 root root 59041 Nov 15 16:04 anaconda.log -rw-------. 1 root root 42763 Nov 15 16:04 anaconda.program.log -rw-------. 1 root root 299910 Nov 15 16:04 anaconda.storage.log -rw-------. 1 root root 40669 Nov 15 16:04 anaconda.syslog -rw-------. 1 root root 57061 Nov 15 16:04 anaconda.xlog -rw-------. 1 root root 1829 Nov 15 16:04 anaconda.yum.log drwxr-x---. 2 root root 4096 Nov 15 16:11 audit -rw-r--r-- 1 root root 2252 Dec 9 10:27 boot.log -rw------- 1 root utmp 384 Dec 9 10:31 btmp -rw-------. 1 root utmp 1920 Nov 28 09:28 btmp-20131202 drwxr-xr-x 2 root root 4096 Nov 29 15:47 ConsoleKit -rw------- 1 root root 2288 Dec 9 11:01 cron -rw-------. 1 root root 8809 Dec 2 17:09 cron-20131202 -
a comment Question: I am trying to troubleshoot Apache web server errors on my Linux system. Where is the Apache error log file located on [insert your Linux distro]? Error log and access log files are a useful piece of information for system admins, for example to troubleshoot their web server, protect it from various malicious activities, or just to run various analytics for HTTP server monitoring. Depending on your web server setup, its error/access logs may be found in different places on your system. This post may help you find Apache error log location on Linux. Apache Error Log Location on Debian, Ubuntu or Linux Mint Default Error Log On Debian-based Linux, the system-wide default location of Apache error log is /var/log/apache2/error.log. The default location can be customized by editing Apache configuration file. Custom Error Log To find a custom error log location, open /etc/apache2/apache2.conf with a text editor, and look for a line that starts with ErrorLog. This line specifies a custom location of Apache error log file. For example, the unmodified Apache configuration file has the following line: ErrorLog ${APACHE_LOG_DIR}/error.log In this case, the location is configured using APACHE_LOG_DIR environment variable, which is defined in /etc/apache2/envvars. export APACHE_LOG_DIR=/var/log/apache2$SUFFIX In reality, ErrorLog may point to any arbitrary path on your Linux system. Custom Error Log with VirtualHost If VirtualHost is used in Apache web server, ErrorLog directive can be specified within VirtualHost container, in which case the system-wide error log location described above will be ignored. With VirtualHost enabled, each VirtualHost can define its own custom error log location. To find out the error log location of a particular VirtualHost, you can op