Red Hat Bugzilla – Bug 249430
hosts.allow 255.255.255.255 netmask broken for localhost
Last modified: 2012-06-20 09:22:55 EDT
Description of problem:
hosts.allow net/mask pattern does not work as expected, at least while using
Version-Release number of selected component (if applicable):
# rpm -qa | grep tcp_wrappers
Steps to Reproduce:
1. add "ALL: ALL" to /etc/hosts.deny
2. add "sendmail: 127.0.0.1/255.255.255.255" to /etc/hosts.allow
3. #chkconfig sendmail on; service sendmail start
4. #echo "testing" | mail -s "Test" email@example.com
5. check /var/log/maillog
Jul 24 11:48:38 __ sendmail: ____________: tcpwrappers (___________,
tcpwrappers to allow sendmail: 127.0.0.1
does NOT work either
if 126/254 succeeds, why does neither 127/255 nor 126/255 work?
The fix is really simple, but won't make it to 4.6. Please, use just "127.0.0.1"
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