Apache Error Log Configuration
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the requests made to the server Status:Base Module Identifier:log_config_module Source File:mod_log_config.c Summary This module provides for flexible logging of client requests. Logs are written in a customizable
Apache Config Error Log
format, and may be written directly to a file, or to an external httpd log levels program. Conditional logging is provided so that individual requests may be included or excluded from the logs based on apache error log client denied by server configuration characteristics of the request. Three directives are provided by this module: TransferLog to create a log file, LogFormat to set a custom format, and CustomLog to define a log file
Apache Access Log Configuration
and format in one step. The TransferLog and CustomLog directives can be used multiple times in each server to cause each request to be logged to multiple files. Topics Custom Log Formats Security Considerations Directives BufferedLogs CustomLog GlobalLog LogFormat TransferLog Bugfix checklisthttpd changelogKnown issuesReport a bugSee also Apache Log Files Comments Custom Log Formats The format argument to the LogFormat and CustomLog directives
Apache Log4j Configuration
is a string. This string is used to log each request to the log file. It can contain literal characters copied into the log files and the C-style control characters "\n" and "\t" to represent new-lines and tabs. Literal quotes and backslashes should be escaped with backslashes. The characteristics of the request itself are logged by placing "%" directives in the format string, which are replaced in the log file by the values as follows: FormatString Description %% The percent sign. %a Client IP address of the request (see the mod_remoteip module). %{c}a Underlying peer IP address of the connection (see the mod_remoteip module). %A Local IP-address. %B Size of response in bytes, excluding HTTP headers. %b Size of response in bytes, excluding HTTP headers. In CLF format, i.e. a '-' rather than a 0 when no bytes are sent. %{VARNAME}C The contents of cookie VARNAME in the request sent to the server. Only version 0 cookies are fully supported. %D The time taken to serve the request, in microseconds. %{VARNAME}e The contents of the environment variable VARNAME. %f Filename. %h Remote hostname. Will log the IP address if Hostna
Basics Access and Error Logs General Configuration Debian/Ubuntu/Linux Mint Configuration Redhat/Fedora/CentOS Configuration OpenSUSE Configuration Applicable Modules where are apache error logs ubuntu ↑ 0 Apache Logging Basics Log Files An Apache
Where Are Apache Error Logs Located
log is a record of the events that have occurred on your Apache web where are apache error logs stored server. Apache stores two kinds of logs: Access Log Contains information about requests coming in to the web server. This information can include what http://httpd.apache.org/docs/current/mod/mod_log_config.html pages 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" 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 https://www.loggly.com/ultimate-guide/apache-logging-basics/ 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 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 I
Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring http://serverfault.com/questions/267036/is-it-possible-to-create-custom-error-log-in-apache-2 developers or posting ads with us Server Fault Questions Tags Users Badges Unanswered Ask Question _ Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute: Sign up Here's http://unix.stackexchange.com/questions/38978/where-are-apache-file-access-logs-stored how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Is it possible to create Custom Error Log in Apache 2? up vote 8 down vote favorite I'd error log like to prepend the vhost name in my ErrorLog and then pipe it into a program I wrote. Is it possible to write Custom Error log format as it is with Access log? logging httpd apache-2.2 errors share|improve this question edited May 6 '11 at 16:37 Hangin on in quiet desperation 88k9113199 asked May 6 '11 at 15:35 JohnT 55113 Depending on your setup, you can have an ErrorLog for each of your virtual hosts. It's not the apache error log same as a unified parsable logfile, but it's something. –muffinista May 6 '11 at 16:31 add a comment| 4 Answers 4 active oldest votes up vote 7 down vote For piping see the ErrorLog directive and Piped Logs official manual entries which explain it pretty well. Getting a custom error log format is more difficult. You can customize the access log easily with LogFormat but there is nothing built in for modifying the error log format. I did come across CGI::Carp which is a Perl module for outputting to the error log. Finally, there is always modifying the Apache source code directly depending on how badly you want this feature. share|improve this answer answered May 6 '11 at 16:27 uesp 2,9441911 add a comment| up vote 6 down vote In Apache 2.2 you cannot change the format of error_log easily - see http://httpd.apache.org/docs/2.2/logs.html#errorlog. Apache 2.4 adds this support. See http://httpd.apache.org/docs/2.4/logs.html#errorlog. share|improve this answer edited Sep 17 '12 at 14:35 Community♦ 1 answered Sep 13 '12 at 13:59 Yishai 6111 add a comment| up vote 4 down vote With Apache 2.4 you can use the ErrorLogFormat directive. Syntax: ErrorLogFormat [connection|request] format Simple example ErrorLogFormat "[%t] [%l] [pid %P] %F: %E: [client %a] %M" Example (default format for threaded MPMs) ErrorLogFormat "[%{u}t] [%-m:%l] [pid %P:tid %T] %7F: %E: [client\ %a] %M% ,\ referer\ %{Referer}i" Example (similar to the 2.2.x format) ErrorLogFormat "[%t] [%l] %7F: %E: [client\ %a] %M% ,\
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads 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 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 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 CustomLog –Radu 7 hours ago add a comment| up vote 20 down vote If you can't find the log with Gilles's answer, there are a couple more things you can try. Look in /var/log/httpd. Run sudo locate access.log as well as sudo locate access_log. The logs on my system were not visible excep