I apologise in advance for asking questions which I feel I should have been able to answer from sources on the internet. If you could possibly give me some pointers on where to look it would be so much appreciated. My system is centos 6.2 – Linux MyHostName 2.6.32-220.el6.x86_64 #1 SMP Tue Dec 6 19:48:22 GMT 2011 x86_64 x86_64 x86_64 GNU/Linux SELinux mode is set ‘enforced’. I have a proprietary telnet daemon which upon a telnet to port 52000, is started OK when SELinux is disabled. But when it is enabled the same telnet results in /var/log/audit/audit.log showing: type=USER_LOGIN msg=audit(1343048458.345:69): user pid=2536 uid=0 auid=799 ses=7 subj=system_u:system_r:inetd_t:s0-s0:c0.c1023 msg='op=login id=799 exe="/bin/login" hostname=0.0.0.0 addr=0.0.0.0 termi nal=pts/2 res=success' A normal telnet gives a message similar to above, my telnet adds the following: type=AVC msg=audit(1343048458.353:70): avc: denied { entrypoint } for pid=2543 comm="login" path="/bin/bash" dev=sda2 ino=135083 scontext=unconfined_u:system_r:qmail_tcp_env_t:s0-s0:c0.c1023 tconte xt=system_u:object_r:shell_exec_t:s0 tclass=file I believe I can create a policy to overcome this using audit2allow, i.e. it comes up with: module mypola 1.0; require { type qmail_tcp_env_t; type shell_exec_t; class file entrypoint; } #============= qmail_tcp_env_t ============== allow qmail_tcp_env_t shell_exec_t:file entrypoint; But it seems to me what I ought to be doing is somehow to get my daemon to run with a domain of ‘remote_logon_t’ as is used by the standard telnet daemon, as here: type=USER_LOGIN msg=audit(1343058924.928:212): user pid=3759 uid=0 auid=799 ses=29 subj=system_u:system_r:remote_login_t:s0-s0:c0.c1023 msg='op=login id=799 exe="/bin/login" hostname=localhost addr=:: 1 terminal=pts/2 res=success' This is unfamiliar territory and any hints or pointers would really be appreciated. Dave. Principal Systems Architect This email is sent on behalf of Northgate Information Solutions Limited and its associated companies ("Northgate") and is strictly confidential and intended solely for the addressee(s). If you are not the intended recipient of this email you must: (i) not disclose, copy or distribute its contents to any other person nor use its contents in any way or you may be acting unlawfully; (ii) contact Northgate immediately on +44 (0)1442 232424 quoting the name of the sender and the addressee then delete it from your system. Northgate has taken reasonable precautions to ensure that no viruses are contained in this email, but does not accept any responsibility once this email has been transmitted. You should scan attachments (if any) for viruses. Northgate Information Solutions
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