Should this article appears to be applicable, please, check this other one and confirm it works in such a scenario so it can be merged
Applicable to:
- Plesk for Linux
Symptoms
-
Unable to upload a file to a website hosted in Plesk:
CONFIG_TEXT: 413 Request entity too large
CONFIG_TEXT: Request Entity Too Large
The requested resource
/upload-a-file/
does not allow request data with POST requests, or the amount of data provided in the request exceeds the capacity limit. -
ModSecurity Atomic ruleset is specified in Tools & Settings > Web Application Firewall (ModSecurity) > Settings
or
Imunify360 is installed in Extensions. -
Error in
/var/www/vhosts/example.com/logs/error_log:CONFIG_TEXT: ModSecurity: Request body no files data length is larger than the configured limit (1048576).. Deny with code (413) [hostname "www.example.com"] [uri "/wp-admin/admin-ajax.php"] [unique_id "Wakfj-fvNMmcLKLp-n8PjQAAAAE"]
Cause
Modsecurity limit defined by WAF_SECREQUESTBODYNOFILESLIMIT parameter value is reached.
Resolution
-
Log into the server via SSH.
-
Open
/etc/asl/configfile using the vi text editor. -
Increase the value for the
WAF_SECREQUESTBODYNOFILESLIMITdirective, for example to the value as below (specified in Bytes):CONFIG_TEXT: WAF_SECREQUESTBODYNOFILESLIMIT "10000000"
-
Execute the command below to update the rulesets:
# for i in daily weekly monthly; do /usr/local/psa/bin/sw-engine-pleskrun /usr/local/psa/admin/plib/DailyMaintainance/script.php -f UpdateModSecurityRuleSet --period "${i}"; done
This way the change will remain persistent after any updates/rulesets changes.
/etc/asl/config file:For Debian based systems (Ubuntu/Debian):
-
Check if SecRequestBodyNoFilesLimit is not defined in Apache configuration:
# grep -r SecRequestBodyNoFilesLimit /etc/apache2/
# - If it is defined, increase this value. If not, define SecRequestBodyNoFilesLimit by creating limits.conf file:
# printf "SecRequestBodyNoFilesLimit 10000000\n" > /etc/apache2/modsecurity.d/limits.conf
- Reload the service:
# service apache2 reload
For RHEL-based systems (CentOS/CloudLinux/AlmaLinux):
- Check if SecRequestBodyNoFilesLimit is defined in Apache configuration:
# grep -r SecRequestBodyNoFilesLimit /etc/httpd
# - If it is defined, increase its value. If not, define SecRequestBodyNoFilesLimit by creating limits.conf file:
# printf "SecRequestBodyNoFilesLimit 10000000\n" > /etc/httpd/conf/modsecurity.d/limits.conf
- Reload the service:
# service httpd reload
Comments
9 comments
Hi,
In CentOS 7 with Obsidian, the changes are working when modifying the file
/etc/httpd/conf/modsecurity.d/rules/tortix/modsec/tortix_waf.confThe file /etc/httpd/conf.d/mod_security.conf is no existan.
Regards
Hello Alejandro Betancor
I've checked this on my test server and agree with you.
I will pass this to the article author.
how can that be done on ubuntu?
Hello Shai, article updated and new instructions can be done on Ubuntu too.
/asl/config I don't have asl file then how will I proceed ?
Hello @sanjiv,
It is not /asl/config file, but /etc/asl/config. If this file is missing, try this solution:
Log in to the server via SSH.
Set the following in the
/etc/httpd/conf.d/modsec2.imunify.conffile with a vi text editor:SecResponseBodyLimit 546870912
SecRequestBodyNoFilesLimit 10485760
Note: it is specified in Bytes.
Restart Apache:
# systemctl restart httpd
If it does not help, check /var/www/vhosts/example.com/logs/error_log for detailed error that appears when issue is reproduced and search at support.plesk.com/hc using this error for another article.
There is no file with this name "modsec2.imunify.conf". Still I have an error 413 entity too large. Please suggest a working solution. I had already worked with each possible case to resolve the same.
Hi,
I customized it on the domain level: Websites & Domains > domain name > Apache & nginx Settings
<IfModule mod_security2.c>
SecRequestBodyLimit 546870912
</IfModule>
Hi All
I have the same problem. I have been managing this by increasing the limits in the
/etc/httpd/conf.d/modsec2.imunify.conffile. However, every time IM360 updates the chnages are deleted. Is there a more permenant location for increased server upload limits ?PS : regarding the /etc/httpd/conf/modsecurity.d/rules/tortix/modsec/tortix_waf.conf
I have this file in one of my production servers but not the other. They are configured almost identical- not sure why one has this file and the other has not
Lastly - would adding the /etc/httpd/conf/modsecurity.d/limits.conf file ( with higher limits) work? despite having the tortix_waf.conf?
any suggestion would be much appriciated
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