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* Replace IPSec tunnels by app-level ephemeral TLS sessions.Guilhem Moulin2015-06-071
| | | | | For some reason giraff doesn't like IPSec. App-level TLS sessions are less efficient, but thanks to ansible it still scales well.
* Fix syntax error.Guilhem Moulin2015-06-071
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* Generate certs for Dovecot and Nginx if they are not there.Guilhem Moulin2015-06-071
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* Make genkeypair.sh able to display TXT record for DKIM signatures.Guilhem Moulin2015-06-071
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* Add support for CSR and subjectAltName in genkeypair.sh.Guilhem Moulin2015-06-071
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* Don't require a PKI for IPSec.Guilhem Moulin2015-06-071
| | | | | | | | | | | Instead, generate a server certificate for each host (on the machine itself). Then fetch all these certs locally, and copy them over to each IPSec peer. That requires more certs to be stored on each machines (n vs 2), but it can be done automatically, and is easier to deploy. Note: When adding a new machine to the inventory, one needs to run the playbook on that machine (to generate the cert and fetch it locally) first, then on all other machines.
* wibbleGuilhem Moulin2015-06-071
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* Postfix master (nullmailer) configurationGuilhem Moulin2015-06-071
| | | | We use a dedicated instance for each role: MDA, MTA out, MX, etc.
* Don't start daemons when there is a triggered handler.Guilhem Moulin2015-06-071
| | | | This is pointless since the service will be restarted anyway.
* Flush pending handlers between each include.Guilhem Moulin2015-06-071
| | | | | | | | | In particular, run 'apt-get update' right after configured APT, and restart daemon right after configured them. The advantage being that if ansible crashes in some "task", the earlier would already be restarted if neeeded. (This may not happen in the next run since the configuration should already be up to date.)
* Autostart daemons.Guilhem Moulin2015-06-071
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* Prohibit binding against the IP reserved for IPSec.Guilhem Moulin2015-06-071
| | | | | | | | | Packets originating from our (non-routable) $ipsec are marked; there is no xfrm lookup (i.e., no matching IPSec association), the packet will retain its mark and be null routed later on, thanks to ip rule add fwmark "$secmark" table 666 priority 666 ip route add blackhole default table 666
* Use a dedicated, non-routable, IPv4 for IPSec.Guilhem Moulin2015-06-071
| | | | | | | At the each IPSec end-point the traffic is DNAT'ed to / MASQUERADE'd from our dedicated IP after ESP decapsulation. Also, some IP tables ensure that alien (not coming from / going to the tunnel end-point) is dropped.
* Configure IPSec.Guilhem Moulin2015-06-071