Johnny Hughes wrote: > On 09/20/2017 07:19 AM, hw wrote: >> hw wrote: >>> >>> Hi, >>> >>> how do I allow CGI programs to print (using 'lpr -P some-printer >>> some-file.pdf') when >>> lighttpd is being used for a web server? >>> >>> When selinux is permissive, the printer prints; when it´s enforcing, >>> the printer >>> does not print, and I´m getting the log message '/bin/lpr: Permission >>> denied'. >>> >>> 'getsebool -a | grep http' doesn´t show any boolean I could make out >>> to be responsible >>> for this. >>> >>> Any idea what I need to do/change to allow printing without disabling >>> selinux? >>> _______________________________________________ >>> CentOS mailing list >>> CentOS at centos.org >>> https://lists.centos.org/mailman/listinfo/centos >> >> Nobody knows? > > > Look in your audit logs while in permissive mode and you should see the > issue in there, the wiki has details: > > https://wiki.centos.org/HowTos/SELinux#head-798c98ef37cb8a00425a048152113b7a7dc14f1b Thanks! I´m guessing I´m supposed to use ausearch to search for something, and I don´t know what to search for. So far, lighttpd can not print and can not send emails (using MIME::Lite) unless selinux is permissive. Using 'ausearch -c "httpd" -m AVC,USER_AVC,SELINUX_ERR,USER_SELINUX_ERR -i' , I only get type=PROCTITLE msg=audit(09/21/2017 14:08:40.569:559) : proctitle=/usr/sbin/lighttpd -D -f /etc/lighttpd/lighttpd.conf type=SYSCALL msg=audit(09/21/2017 14:08:40.569:559) : arch=x86_64 syscall=open success=no exit=EACCES(Permission denied) a0=0x559fc8094740 a1=O_WRONLY|O_CREAT|O_EXCL|O_NOCTTY|O_TRUNC|O_CLOEXEC a2=0644 a3=0x7 items=0 ppid=1 pid=14081 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=lighttpd exe=/usr/sbin/lighttpd subj=system_u:system_r:httpd_t:s0 key=(null) type=AVC msg=audit(09/21/2017 14:08:40.569:559) : avc: denied { write } for pid=14081 comm=lighttpd name=www dev="sda2" ino=64608 scontext=system_u:system_r:httpd_t:s0 tcontext=system_u:object_r:httpd_sys_content_t:s0 tclass=dir Any idea what I would need to search for, or how to figure out what I would need to allow?