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11 Best Free Linux Logfile Viewers

Submitted by Roy Schestowitz on Thursday 25th of April 2019 03:45:36 PM Filed under
Software

A server log is a log file which is created and updated by a server. A common example is an access log generated by Apache (open source web server software), which provides a history of web page requests. However, Apache does not only capture information to that access log. There is also information captured in its error log as well as a process id file, script log and a rewrite log.

These log files are everywhere. Applications capture an enormous amount of information to log files, especially as a server may generate multiple logs. It is important to review log files to obtain feedback about the activity and performance of the server, and to identify hints to solve any problems that may arise. However, the administrator of the system can suffer from information overload, and reviewing the log files in an efficient way can be a very time consuming task.

Here steps in the trusty logfile viewer; a small utility which filters out extraneous information generated in logfiles, identifying specific strings in real time. Logfile viewers used in conjunction with logfile analyzers make a powerful combination.

For many years system and kernel logs were handled by a utility called syslogd. Most Linux-based operating systems have since moved to systemd, which has a journal. It’s a giant log file for the whole system. Various software and services write their log entries into systemd’s journalctl

To provide an insight into the quality of software that is available, we have compiled a list of 11 useful Linux logfile viewers. Hopefully, there will be something of interest for anyone needing to examine and process logfile data.

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