diff options
| author | Guilhem Moulin <guilhem@fripost.org> | 2014-07-11 22:39:48 +0200 |
|---|---|---|
| committer | Guilhem Moulin <guilhem@fripost.org> | 2015-06-07 02:53:03 +0200 |
| commit | 42140bf82da25565e7653afbcef2cc8aa7a8538a (patch) | |
| tree | 53a8256c2f88d7d54b231b6dca41e9b06b424027 /roles/common/templates | |
| parent | 1422d37b350428b1524016026290ad80724b016d (diff) | |
Fix NTP configuration.
We've yet to get authenticated time, though.
Diffstat (limited to 'roles/common/templates')
| -rw-r--r-- | roles/common/templates/etc/iptables/services.j2 | 4 | ||||
| -rw-r--r-- | roles/common/templates/etc/ntp.conf.j2 | 14 |
2 files changed, 12 insertions, 6 deletions
diff --git a/roles/common/templates/etc/iptables/services.j2 b/roles/common/templates/etc/iptables/services.j2 index 3a470fa..db7edf1 100644 --- a/roles/common/templates/etc/iptables/services.j2 +++ b/roles/common/templates/etc/iptables/services.j2 @@ -7,8 +7,10 @@ out tcp 80,443 # HTTP/HTTPS out udp 53 # DNS out udp 67 # DHCP - {% if 'NTP-master' in group_names %} +in udp 123 # NTP +out udp 123 # NTP +{% else %} out udp 123 123 # NTP {% endif %} diff --git a/roles/common/templates/etc/ntp.conf.j2 b/roles/common/templates/etc/ntp.conf.j2 index 96cc16c..d46ba18 100644 --- a/roles/common/templates/etc/ntp.conf.j2 +++ b/roles/common/templates/etc/ntp.conf.j2 @@ -22,9 +22,13 @@ server ntp2.gbg.netnod.se iburst server ntp1.sth.netnod.se iburst server ntp2.sth.netnod.se iburst {% else %} -# Sychronize to our (stratum 2) NTP server through IPSec, to ensure our -# network has a consistent time. -server ntp.fripost.org iburst +# Sychronize to our (stratum 2) NTP server, to ensure our network has a +# consistent time. +# TODO: use to pubkey authentication to unsure an attacker doesn't +# impersonate our NTP server and gives us incorrect time. +server ntp.fripost.org iburst +server 0.se.pool.ntp.org iburst +server 1.se.pool.ntp.org iburst {% endif %} @@ -37,8 +41,8 @@ server ntp.fripost.org iburst # up blocking replies from your own upstream servers. # By default, exchange time with everybody, but don't allow configuration. -restrict -4 default kod notrap nomodify nopeer noquery -restrict -6 default kod notrap nomodify nopeer noquery +restrict -4 default limited kod nomodify notrap nopeer noquery +restrict -6 default limited kod nomodify notrap nopeer noquery # Local users may interrogate the ntp server more closely. restrict 127.0.0.1 |