Troubleshoot - by Hostrare
cPanel log file areas and Basic troubleshooting, the most famous activity that follows on a server to log data, so that you can go back and analyze log records for difficulties, instead of having to be on the server at the period of the following.
Path : /var/log/dmesg
Use the command ” dmesg ” in the root shell to display all the kernel ring defensedefense (last 64 K) stored in the memory. Just use ” dmesg > boot. messages ” to store the logs in a separate file, and if you want to clear the dmesg just type ” dmesg -c “.
Path : /var/log/messages
Use “ tail -f /var/log/message ” to list what is working on with your policy and with your DNS. This log helps the admin to find any form of tcp/udp and other forms of attacks.
Path : /var/log/btmp
Stores all the bad login and logout attempts with each loser or success. Just practice the lastb facility to list all the records in a clear form with date/time etc to track and block the crime source. This kind of ssh attack is regularly done doing a script with Brute force password crackers.
Path : /var/log/wtmp
Similar to the bad login/logout this log property the good/authorized system login and logout can be listed doing the” last “ command.
Path : /var/log/lastlog
Database times of earlier user logins. The lastlog file is a database that checks info on the last login of each user. Use the ” lastlog ” command to retrieve the data from the reports.
Path : /var/log/secure
Logs all daemons which require PAM Authentication.
cPanel/WHM Initial Installation Errors
Path : /var/log/cpanel*install*
Logs use to record the missing dependency or any error which is encounter during the cpanel connection process including the hardware driver failures/mismatches.
Path : /usr/local/cpanel/logs/license_log
License and its updated information are saved here, if you are encountering any license issue just execute the command /usr/local/cpanel/cpkeyclt to update the license from the Cpanel.
Holds a list of accounting gatherings offered through WHM, including account removal and creation. So the administrator can make of these logs to check who removed the account and from which IP etc.
Separate logs for the cpanel’s chkservd daemon which logs the service failure and information.
Path : /usr/local/cpanel/logs/stats_log
The stats daemon (cpanellogd) logs the output from all stats generators (Awstats, Webalizer, Analog) here.
Path : /usr/local/cpanel/logs/access_log
All the login attempts and logins will be logged in these logs which helps the administrator to check who logged in to the panel on which time/IP address etc.
Path : /var/cpanel/bandwidth
Files contain a list of the bandwidth history for each account. Each named after their respective user.
Path : /usr/local/cpanel/logs/tailwatchd_log
Logs for daemon configured under tailwatchd ie. cPBandwd, Eximstats, Antirelayd.
Ftp General login and Failure
Path : /var/log/messages
FTP Data Transactions log
Path : /var/log/xferlog
Is a symbolic link in most cases to /usr/local/apache/domlogs/ftpxferlog, which contains a history of the transactions made by FTP users.
FTP account Raw logs.
Path : /usr/local/apache/domlogs/ftp.domainname-ftp_log
Store all the ftp login/transfers ftp commands, client connection status etc.
Path : /var/log/pureftpd.log
It will be disabled by default and only works if you enable it in the /etc/pure-ftpd.conf .
Path : /var/log/pro-ftpd.log
It will be disabled by default and only works if you enable it in the /etc/pro-ftpd.conf
MySQL General Information and Errors
Path : /var/lib/mysql/$(hostname).err
This path could vary but is usually located in /var/lib/mysql. Could also be located at /var/log/mysqld.log.
Apache Access Logs:
Path : /usr/local/apache/logs/access_log
The complete web server access log records of all applications prepared by the server.
General Error and Auditing Logs
Path : /usr/local/apache/logs/error_log
All differences caught by httpd along with official error output from CGI applications are logged here, including apache crash, etc.
Apache SuExec Logs
Path : /usr/local/apache/logs/suexec_log
Auditing data is reported by suexec each time a CGI administration is produced. Useful for debugging internal server failures, with no related information being recorded to the Apache error_log, check here for potential suexec policy crimes.
Domain Access & error logs
Indefinite access and error log file for any domain configured with cPanel.
Mail Receive and Delivery
Path : /var/log/exim_mainlog or /var/log/exim/mainlog(FreeBSD)
Receives an entry every time a message is received or delivered.
ACLs/Policies based RejectLog
Path : /var/log/exim_rejectlog
An entry is written to this log every time a message is rejected based on either ACLs or other policies eg: aliases configured to : fail
Panic/Fatal Errors :
Path : /var/log/exim_paniclog
Logs any records Exim doesn’t know how to manage. It’s commonly a really bad thing when log records are being signed here, and they should be accurately investigated
Path : /var/log/maillog & /var/log/messages
The IMAP, POP, and SpamAssassin duties all log here. This involves all general logging data (login attempts, transactions, spam scoring), along with fatal errors.
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