Does anyone have OSSEC running on a Debian 10 server with ISPConfig? It looks like OSSEC needs sendmail while I am running postfix and postfix-mysql. Installing sendmail isn't a good idea as it will remove postfix, postfix-mysql which is required for running my mail server. Code: os_maild/sendmail.c:12:10: fatal error: event.h: No such file or directory #include <event.h> ^~~~~~~~~ compilation terminated. make: *** [Makefile:930: os_maild/sendmail.o] Error 1 Error 0x5. Building error. Unable to finish the installation.
I do not have ossec (its the first time I hear about it ), but: You don't need sendmail. The postfix package usually provides a sendmail replacement. In a quick search I found that guide and there is nothing about sendmail mentioned: https://kifarunix.com/install-ossec-agent-on-debian-10-buster/
