We're testing out the Puppetlabs-Firewall module. And it seems I'm either
missing something fundamental or Logging/Accpet works/doesn't work in an
irregular way. I would be most grateful for some input.
*COMMON:*
firewall { '002 accept related established rules INPUT': proto => 'all',
state => ['RELATED', 'ESTABLISHED'], action => 'accept' }
firewall { '003 accept related established rules OUTPUT': chain =>
'OUTPUT', proto => 'all', state => ['RELATED', 'ESTABLISHED'], action =>
'accept' }
*This works for new inbound SSH connections:*
firewall { '007 fwd to ssh_in': chain => 'INPUT', iniface => 'eth0',
source => '10.x8.xx1.0/24', proto => 'tcp', state => 'NEW', port => '22',
action => 'accept' }
*This works for inbound SSH connections:* firewallchain {
'ssh_in:filter:IPv4': ensure => present, }
firewall { '008 fwd to ssh_in': chain => 'INPUT', iniface => 'eth0',
source => '10.x8.xx1.0/24', proto => 'tcp', state => 'NEW', port => '22',
jump => 'ssh_in' }
firewall { '009 ssh_in': chain => 'ssh_in', jump => 'LOG', log_prefix =>
'ssh_in ' }
firewall { '011 ssh_in': chain => 'ssh_in', action => 'accept' }
*This works for DNS:*
firewall { '016 fwd to dns_out': chain => 'OUTPUT', outiface => 'eth0',
destination => '10.x8.x0.x5', proto => 'udp', port => '53', action =>
'accept', }
firewall { '016 fwd to dns_out': chain => 'OUTPUT', outiface => 'eth0',
destination => '10.x8.x0.x5', proto => 'tcp', state => 'NEW', port => '53',
action => 'accept', }
firewall { '016 fwd to dns_out': chain => 'OUTPUT', outiface => 'eth0',
destination => '10.x8.x0.x6', proto => 'udp', port => '53', action =>
'accept', }
firewall { '016 fwd to dns_out': chain => 'OUTPUT', outiface => 'eth0',
destination => '10.x8.x0.x6', proto => 'tcp', state => 'NEW', port => '53',
action => 'accept', }
*This does NOT work for DNS:*
firewallchain { 'dns_out:filter:IPv4': ensure => present, }
firewall { '016 fwd to dns_out': chain => 'OUTPUT', outiface => 'eth0',
destination => '10.x8.x0.x5', proto => 'udp', port => '53', jump =>
'dns_out', }
firewall { '016 fwd to dns_out': chain => 'OUTPUT', outiface => 'eth0',
destination => '10.x8.x0.x5', proto => 'tcp', state => 'NEW', port => '53',
jump => 'dns_out', }
firewall { '016 fwd to dns_out': chain => 'OUTPUT', outiface => 'eth0',
destination => '10.x8.x0.x6', proto => 'udp', port => '53', jump =>
'dns_out', }
firewall { '016 fwd to dns_out': chain => 'OUTPUT', outiface => 'eth0',
destination => '10.x8.x0.x6', proto => 'tcp', state => 'NEW', port => '53',
jump => 'dns_out', }
firewall { '024 dns_out': chain => 'dns_out', jump => 'LOG', log_prefix
=> 'dns_out', }
firewall { '025 dns_out': chain => 'dns_out', action => 'accept', }
None of the above rules generates any errors.
My understanding of reading the doc is the default policy is 'accept' when
not specified (not sure about custom chains). When I try to connect to the
server, I don't see logs being generated.
Thanks,
Jim
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