Question

Accidentally deleted /etc/modsecurity

Hi,

I had lots of issues with mod_security blocking my sites on Ubuntu 14.04, so I uninstalled it by running:

apt-get remove libapache2-mod-security2

But, this still left the /etc/modsecurity/ folder intact, so I manually removed it by running rm -rf /etc/modsecurity

I reinstalled modsecurity again and enabled it, but can’t proceed further with the configuration because, at /etc/modsecurity/, I can’t find the two files modsecurity.conf-recommended and unicode.mapping. All I get when I change to the directory /etc/modsecurity/ and do an ls -la is this:


root@host01:/etc/modsecurity# ls root@host01:/etc/modsecurity# ls -la total 8 drwxr-xr-x 2 root root 4096 Sep 7 02:02 . drwxr-xr-x 95 root root 4096 Sep 6 16:57 … root@host01:/etc/modsecurity#


The file modsecurity.conf-recommended at this path has to be renamed to modsecurity.conf for mod_security to work, but it’s just not there.

I think it was a mistake to manually delete the /etc/modsecurity folder and would greatly appreciate any pointers to fix this issue.


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I may have a solution for you. When you use apt-get remove apt will uninstall the program specified but retain all configuration and associated files it generated. On a re-install it attempts to continue to use these. To completely remove a program and all it’s configuration you can use apt-get purge instead. To start over fresh with mod_security I would recommend (from the current state where you have it installed but not working properly) doing this:

apt-get purge libapache2-mod-security2
apt-get install libapache2-mod-security2

This should force a complete removal and re-installation and should re-create the files in /etc/modsecurity if they were created by that package’s installation.