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Description of problem:
snmptrap can't create (or write to) /var/lib/net-snmp/snmpapp.conf if isn't run under root

/var/lib/net-snmp/snmpapp.conf doesn't exist by default. When unprivileged user run snmptrap it can't write to /var/lib/net-snmp/.

[root@pes-guest-72 ~]# ls /var/lib/net-snmp/
cert_indexes/   mib_indexes/    snmptrapd.conf 
[root@pes-guest-72 ~]# su - test
[test@pes-guest-72 ~]$ id
uid=1000(test) gid=1000(test) groups=1000(test) context=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023
[test@pes-guest-72 ~]$ /usr/bin/snmptrap -v2c -c public localhost '' FREERADIUS-NOTIFICATION-MIB::serverStart
read_config_store open failure on /var/lib/net-snmp/snmpapp.conf
read_config_store open failure on /var/lib/net-snmp/snmpapp.conf
read_config_store open failure on /var/lib/net-snmp/snmpapp.conf



Version-Release number of selected component (if applicable):
net-snmp-5.7.2-18.el7

How reproducible:
always

Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:

I pushed a fix upstream: https://sourceforge.net/p/net-snmp/code/ci/53ee5f1d240ac90adae935538bdc2ca13a8caa32/

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHSA-2015-2345.html