Where can I find error log files?

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Where can I find error log files? I need to check them for solving an internal server error shown after installing suPHP.

You can use "lsof" to find open logfiles on your system. lsof just gives you a list of all open files.

Use grep for "log" ... use grep again for "php" (if the filename contains the strings "log" and "php" like in "php_error_log" and you are root user you will find the files without knowing the configuration).

        root@lnx-work:~# lsof |grep log
        ... snip
        gmain     12148 12274       user   13r      REG              252,1    32768     661814 /home/user/.local/share/gvfs-metadata/home-11ab0393.log
        gmain     12148 12274       user   21r      REG              252,1    32768     662622 /home/user/.local/share/gvfs-metadata/root-56222fe2.log
        gvfs-udis 12246             user  mem       REG              252,1    55384     790567 /lib/x86_64-linux-gnu/libsystemd-login.so.0.7.1
==> apache 12333             user  mem       REG              252,1    55384     790367 /var/log/http/php_error_log**
        ... snip 

        root@lnx-work:~# lsof |grep log |grep php 
        **apache 12333             user  mem       REG              252,1    55384     790367 /var/log/http/php_error_log**
        ... snip 

Also see this article on finding open logfiles: Find open logfiles on a linux system

Access and Error Logs - The Ultimate Guide To Logging, Location. Access and error log files are stored on individual web servers. The exact location of your Apache logs depends on your operating system:. Error logs from the Sysprep command reside here; %WINDIR%\System32\Sysprep\Panther Reading Error Log Files. Error files are saved with the .log or .dmp file extension..dmp files are memory dump files and can most easily be read and understood with a free Nirosoft tool called BlueScreenView. It can give you a fairly good analysis of the dump file.

Works for me. How log all php errors to a log fiie?

Just add following line to /etc/php.ini to log errors to specified file – /var/log/php-scripts.log

vi /etc/php.ini

Modify error_log directive

error_log = /var/log/php-scripts.log

Make sure display_errors set to Off (no errors to end users)

display_errors = Off

Save and close the file. Restart web server:

/etc/init.d/httpd restart

How do I log errors to syslog or Windows Server Event Log?

Modify error_log as follows :

error_log = syslog

How see logs?

Login using ssh or download a log file /var/log/php-scripts.log using sftp:
$ sudo tail -f /var/log/php-scripts.log

Understanding the PHP Error Log File, In computer science, the PHP error log file is a record which keeps the all the information about your critical website errors. This includes wrong  The SQL Server Error Log is a great place to find information about what is happening on your database server. You can execute the below TSQL command which uses the XP_READERRORLOG extended stored procedure to read the SQL Server Error Log to find the location of SQL Server Error Log file used by the instance of SQL Server.

On CentoS with cPanel installed my logs were in:

/usr/local/apache/logs/error_log

To watch: tail -f /usr/local/apache/logs/error_log

Error log files, Error log files are deleted after five days. Depending on your operating system, the location for the log file varies. For any Windows operating system, you can go to  Your log files are accessible from the 'logs' directory of your Grid hosting service. The system path for this is /home/00000/logs/, which can be accessed through the File Manager, FTP, or SSH. You can also view them from within your Grid Control Panel. Be sure to replace 00000 with your Grid site number.

What OS you are using and which Webserver? On Linux and Apache you can find the apache error_log in /var/log/apache2/

Log Files, How do I find out where the SQL Server Error Log file is located for a specific SQL Server instance? In this tip we look at different ways a DBA  Log on to the Web server computer as Administrator. Click Start, point to Settings, and then click Control Panel. Double-click Administrative Tools, and then double click Internet Services Manager. In the left pane, click the Web site in the list of served sites. Right-click the Web site, and then point to Properties.

I am using Cent OS 6.6 with Apache and for me error log files are in

/usr/local/apache/log

Identify location of the SQL Server Error Log file, You can use "lsof" to find open logfiles on your system. lsof just gives you a list of all open files. Use grep for "log" use grep again for "php" (if  While on the Home page, press F2 or Ctrl+1 to open the Product Information window. Press F3 or Ctrl+2 to open the Tech Help window, then select Open File tab. Select QBWin.log, then choose Open File.Quick tip: Press Ctrl+F, then enter “Begin Verify” to find the last entry of Begin Verify on your log file.

Where can I find error log files?, ini file and the ini_set command. How to enable and check PHP error logs. PHP can be set up to log errors in a variety of different ways: two of  Windows log files location. Log files in Windows XP are stored in system disk (C:) and the path most probably looks like this: C:\WINDOWS\system32\config\. In the last “config” folder you may find event viewer files with “evt” extension, such as antivirus.evt, application.evt, security.evt, etc.

PHP error logs, View the SQL Server error log to ensure that processes have completed successfully (for example, backup and restore operations, batch  You can use "lsof" to find open logfiles on your system. lsof just gives you a list of all open files. Use grep for "log" use grep again for "php" (if the filename contains the strings "log" and "php" like in "php_error_log" and you are root user you will find the files without knowing the configuration).

The Location Of SQL Server Errorlog Files, htaccess File. If you don't use Hostinger, PHP error logging can also be enabled by editing the .htaccess file. Read 

Comments
  • It depends on your logging settings :) CO
  • my server is centos but it doesnt show anything under var/log/httpd
  • Check if error_log path is set in php.ini. If not set it will be usually logged in the web server's error log.
  • Look for error_log in php.ini, if you use php-fpm, you might also wanted to check error_log in php-fpm conf file
  • Why should I make sure display_errors is off? Surely this shouldn't affect error logging, does it?
  • As stated in the answer, display_errors determines whether errors are displayed to the end-user (e.g. on the rendered webpage), so no, it doesn't affect logging. php.net/manual/en/…
  • under /var/log there is no any folder or files named apache2 or apache. My server is centos - apache
  • under /var/log/httpd ? You can config the log location of apache in the apache.conf file. this should be located somewhere at /etc/httpd/