Multiple Error Log Directives
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necessary to get feedback about the activity and performance of the server as
Apache Access Log Format
well as any problems that may be occurring. The Apache HTTP Server apache access log location provides very comprehensive and flexible logging capabilities. This document describes how to configure its logging capabilities, and
Apache Log Format %d
how to understand what the logs contain. Overview Security Warning Error Log Per-module logging Access Log Log Rotation Piped Logs Virtual Hosts Other Log Files See alsoComments Overview apache log rotation Related ModulesRelated Directivesmod_log_configmod_log_forensicmod_logiomod_cgi The Apache HTTP Server provides a variety of different mechanisms for logging everything that happens on your server, from the initial request, through the URL mapping process, to the final resolution of the connection, including any errors that may have occurred in the process. In addition to this, third-party modules may apache error log format provide logging capabilities, or inject entries into the existing log files, and applications such as CGI programs, or PHP scripts, or other handlers, may send messages to the server error log. In this document we discuss the logging modules that are a standard part of the http server. Security Warning Anyone who can write to the directory where Apache httpd is writing a log file can almost certainly gain access to the uid that the server is started as, which is normally root. Do NOT give people write access to the directory the logs are stored in without being aware of the consequences; see the security tips document for details. In addition, log files may contain information supplied directly by the client, without escaping. Therefore, it is possible for malicious clients to insert control-characters in the log files, so care must be taken in dealing with raw logs. Error Log Related ModulesRelated DirectivescoreErrorLogErrorLogFormatLogLevel The server error log, whose name and location is set by the <
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Apache Access Log Example
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Apache Loglevel
Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Apache server — multiple directories, different error https://httpd.apache.org/docs/2.4/logs.html logs up vote 4 down vote favorite 1 I have two directories in /var/www (say, /var/www/app1 and /var/www/app2) whose error logs I want sent to different files. Both are under the same domain, so I think that I can't put them under different virtual hosts. So, for example, I would access them as: http://localhost/app1 http://localhost/app2 I came across this page: Generate access logs for different subdirectories in http://stackoverflow.com/questions/10395043/apache-server-multiple-directories-different-error-logs Apache whose solution works perfectly for the access logs. However, the "env" argument doesn't seem to work with the ErrorLog directive. Before this "discovery", I was working on this, which seems wrong:
Error Logs General Configuration Debian/Ubuntu/Linux Mint Configuration Redhat/Fedora/CentOS Configuration OpenSUSE Configuration Applicable Modules ↑ 0 Access and http://www.loggly.com/ultimate-guide/access-and-error-logs/ Error Logs Log Files An Apache log is a record https://www.digitalocean.com/community/tutorials/how-to-configure-logging-and-log-rotation-in-apache-on-an-ubuntu-vps of the events that have occurred on your Apache web server. Apache stores two kinds of logs: Access Log Contains information about requests coming in to the web server. This information can include what pages people are viewing, apache log the success status of requests, and how long the request took to respond. It looks something like this: 10.185.248.71 - - [09/Jan/2015:19:12:06 +0000] 808840 "GET /inventoryService/inventory/purchaseItem?userId=20253471&itemId=23434300 HTTP/1.1" 500 17 "-" "Apache-HttpClient/4.2.6 (java 1.5)" Error Log Contains information about errors that the web server encountered when processing requests, such as apache access log when files are missing. It looks something like this: [Thu Mar 13 19:04:13 2014] [error] [client 50.0.134.125] File does not exist: /var/www/favicon.ico Location Access and error log files are stored on individual web servers. The exact location of your Apache logs depends on your operating system: Debian/Ubuntu/Linux Mint Redhat/Fedora/CentOS Configuration OpenSUSE General Configuration The following general default logging configuration directives are specified in absence of specific virtual host container configuration. Log Level Directive This specifies log message severity. Default is “warn.” LogLevel warn Table of Level Severities Severity Description Example emerg Emergencies — system is unusable “Child cannot open lock file. Exiting” alert Immediate action required “getpwuid: couldn’t determine user name from uid” crit Critical conditions “socket: Failed to get a socket, exiting child” error Error conditions “Premature end of script headers” warn Warning conditions “child process 1234 did not exit, sending
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: Justin Ellingwood Subscribe Subscribed Share Contents Contents We hope you find this tutorial helpful. In addition to guides like this one, we provide simple cloud infrastructure for developers. Learn more → 10 How To Configure Logging And Log Rotation In Apache On An Ubuntu VPS Posted Aug 19, 2013 204.6k views Apache Logging Server Optimization Ubuntu Introduction The Apache web server can be configured to give the server administrator important information about how it is functioning and what issues, if any, need to be addressed. The main avenue for providing feedback to the administrator is through the use of log files. Apache has a very configurable logging mechanism that can be used to output messages to different places based on instructions. In this guide, we will look at how to utilize Apache's logging functionality to set up structured, easy-to-parse logs. We will be using a default Apache2 installation on an Ubuntu 12.04 VPS. Other distributions should operate in a similar fashion. Apache Log Levels Apache separates all informational messages into categories depending on how important it considers the information. For instance, for the most important messages, considered emergencies, Apache designates the log level as "emerg". The "info" tag, on the other hand, just shows helpful information that can be useful to look at occasionally. Here are the log levels that Apache recognizes, from most important to least: emerg: Emergency situations where the system is in an unusable state. alert: Severe situation where action is needed promptly. crit: Important problems that need to be addressed. error: An Error has occurred. Something was unsuccessful. warn: Something out of the ordinary happened, but not a cause for concern. notice: Something normal, but worth noting has happened. info: An informational message that might be nice to know. debug: Debugging information that can be useful to pinpoint where a problem is occurring. trace[1-8]: Tracing information of various levels of verbosity that produces a large amount of information. When you specify a log level, you are not choosing to log the messages labeled in that category, you are choosing the least im