Apache2 Error Logging
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necessary to get feedback about the activity and performance of the server as well as any problems that may be occurring. The
Apache2 Error Log Format
Apache HTTP Server provides very comprehensive and flexible logging capabilities. This document describes apache2 error log path how to configure its logging capabilities, and how to understand what the logs contain. Overview Security Warning Error Log Per-module
Apache2 Error Logs Ubuntu
logging Access Log Log Rotation Piped Logs Virtual Hosts Other Log Files See alsoComments Overview Related ModulesRelated Directivesmod_log_configmod_log_forensicmod_logiomod_cgi The Apache HTTP Server provides a variety of different mechanisms apache2 error log location ubuntu 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 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 ubuntu apache2 error log file location 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 ErrorLog directive, is the most important log file. This is the place where Apache httpd will send diagnostic information and record any errors that it encounters in processing requests. It is the first place to look when a problem occurs with starting the server or with the operation of the server,
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Php Error Logging
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Linux Apache Error Log
with us Unix & Linux Questions Tags Users Badges Unanswered Ask Question _ Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD https://httpd.apache.org/docs/2.4/logs.html and other Un*x-like operating systems. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Where are Apache file access logs stored? up vote 81 down vote favorite 20 Does anyone know where file access http://unix.stackexchange.com/questions/38978/where-are-apache-file-access-logs-stored logs are stored, so I can run a tail -f command in order to see who is accessing a particular file. I have XAMPP, which is an Apache server installed on my machine, which automatically logs the accesses. It is stored in my installation folder. files logs syslog share|improve this question edited May 19 '12 at 12:50 Gilles 368k666671117 asked May 18 '12 at 21:51 AkshaiShah 9912108 On what distribution, or with what hosting provider? Logs are typically under /var/log, but some systems have them elsewhere. –Gilles May 19 '12 at 12:51 add a comment| 3 Answers 3 active oldest votes up vote 91 down vote accepted Ultimately, this depends on your Apache configuration. Look for CustomLog directives in your Apache configuration, see the manual for examples. A typical location for all log files is /var/log and subdirectories. Try /var/log/apache/access.log or /var/log/apache2/access.log. If the logs aren't there, try running locate access.log. share|improve this answer answered May 19 '12 at 12:54 Gilles 368k666671117 +1 for CustomLo
Basics Access and Error Logs General Configuration Debian/Ubuntu/Linux Mint Configuration Redhat/Fedora/CentOS Configuration OpenSUSE Configuration Applicable Modules ↑ 0 Apache Logging Basics Log Files An Apache log is a record of the events https://www.loggly.com/ultimate-guide/apache-logging-basics/ 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 http://www.cyberciti.biz/faq/error_log-defines-file-where-script-errors-logged/ people are viewing, the success status of requests, and how long the request took to respond. It looks something like this: Apache 10.185.248.71 - - [09/Jan/2015:19:12:06 +0000] 808840 "GET /inventoryService/inventory/purchaseItem?userId=20253471&itemId=23434300 HTTP/1.1" error log 500 17 "-" "Apache-HttpClient/4.2.6 (java 1.5)" 1 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 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 1 [Thu Mar apache2 error log 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 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 another SIGHUP” notice Normal but significant condition “httpd: caught SIGBUS, attempting to dump core in …” info Informational “Server seems busy…” debug Debug-level messages “opening config file …” trace1-8 Trace messages “proxy: FTP: … ” Note regarding a particular level: Levels are listed in order of descending severity. When triggered, a configured log level will log all events o
RedHat and Friends, Security, Suse, TroubleshootingI‘m running CentOS 5.x server with Apache 2.2 + PHP 5.x server. Can you tell me exact location for php error log file? Generally, on all production web servers displaying error to end users via a web browser is turned off using php.ini file settings. Open /etc/php.ini file and find out line that read as follows:
error_logOR use the grep command as follows:grep error_log /etc/php.ini grep ^error_log /etc/php.iniSample outputs:error_log = /var/log/httpd/php_error_logThe error_log directive defines the name of the file where script errors should be logged. The file should be writable by the web server's user. If the special value syslog is used, the errors are sent to the system logger instead. On Unix, this means syslogd and on Windows NT it means the event log. The system logger is not supported on Windows 95. If this directive is not set, errors are sent to the SAPI error logger. For example, it is an error log in Apache (/var/log/httpd/error_log file) or stderr in command line (CLI).This line define exact location for each php instance. If error_log set to syslog, open /var/log/messages file to view log. For example if error_log is set to /var/log/apache/php.errors, type the following to display error log: $ tail -f /var/log/apache/php.errors$ grep something /var/log/apache/php.errors
$ vi /var/log/apache/php.errorsSee also:PHP Log All Errors to a Log File to Get Detailed Information php.ini directives Share this tutorial on:TwitterFacebookGoogle+Download PDF version Found an error/typo on this page?About the author: Vivek Gite is a seasoned sysadmin and a trainer for the Linux/Unix & shell scripting. Follow him on Twitter. OR read more like this:Apache Log FilesHow do I find out syntax errors in my Apache web server configuration file?Apache 2: Reload HTTPD Configuration File Without Restarting Apache Config…PHP: Stop Notice and Variable Warnings in Error Log FilesHowTo: UNIX Restart Apache ServerApache 403 Forbidden Error and SolutionApache Name Based VirtualHost ExampleLinux Redirect Error Output To FileApache2 NameVirtualHost *:80 has no VirtualHosts Error and SolutionDisplay or view the perl cgi errors in a web browser{ 9 comment