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* Install amavisd-new on the outgoing SMTP proxy.Guilhem Moulin2015-06-073
| | | | For DKIM signing and virus checking.
* More logcheck-database tweaks.Guilhem Moulin2015-06-072
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* Remove IPSec related files.Guilhem Moulin2015-06-071
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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.
* Outgoing SMTP proxy.Guilhem Moulin2015-06-071
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* More logcheck-database tweaks.Guilhem Moulin2015-06-072
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* Log SASL usernames for longer, but don't include mail.log into syslog.Guilhem Moulin2015-06-072
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* Don't install 'unhide.rb'.Guilhem Moulin2015-06-071
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* Don't use generic maps.Guilhem Moulin2015-06-071
| | | | | | | | | | | | | | | | | In fact we want to only rewrite the envelope sender: :/etc/postfix/main.cf # Overwrite local FQDN envelope sender addresses sender_canonical_classes = envelope_sender propagate_unmatched_extensions = sender_canonical_maps = cdb:$config_directory/sender_canonical :/etc/postfix/sender_canonical @elefant.fripost.org admin@fripost.org However, when canonical(5) processes a mail sent vias sendmail(1), it rewrites the envelope sender which seems to *later* be use as From: header.
* 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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* More logcheck-database tweaks.Guilhem Moulin2015-06-073
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* logcheck-database tweaks.Guilhem Moulin2015-06-073
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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.
* Replace mktemp's deprecated -t option by --tmpdir.Guilhem Moulin2015-06-071
| | | | | But not in the installer, as busybox's implementation of mktemp didn't deprecate -t/-p.
* Make use of Ansible 1.5 new features.Guilhem Moulin2015-06-072
| | | | Most notably pipelining=True and sysctl_set=yes.
* wibbleGuilhem Moulin2015-06-071
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* Fix the catch-all resolution again.Guilhem Moulin2015-06-071
| | | | | | | | | | | | | | | | | | | | We introduce a limitation on the domain-aliases: they can't have children (e.g., lists or users) any longer. The whole alias resolution, including catch-alls and domain aliases, is now done in 'virtual_alias_maps'. We stop the resolution by returning a dummy alias A -> A for mailboxes, before trying the catch-all maps. We're still using transport_maps for lists. If it turns out to be a bottleneck due to the high-latency coming from LDAP maps, (and the fact that there is a single qmgr(8) daemon), we could rewrite lists to a dummy subdomain and use a static transport_maps instead: virtual_alias_maps: mylist@example.org -> mylist#example.org@mlmmj.localhost.localdomain transport_maps: mlmmj.localhost.localdomain mlmmj:
* Mailing lists (using mlmmj).Guilhem Moulin2015-06-071
| | | | | | | | | Right now the list server cannot be hosted with a MX, due to bug 51: http://mlmmj.org/bugs/bug.php?id=51 Web archive can be compiled with MHonArc, but the web server configuration is not there yet.
* Excplicitely make local services run on localhost.Guilhem Moulin2015-06-071
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* Fix catchall resolution.Guilhem Moulin2015-06-071
| | | | | | | | It has to be performed last, to give a chance to be accepted as a regular mailbox. We introduce a new, dedicated, smtpd daemon whose only purpose is to resolve catch-alls.
* Configure the webmail.Guilhem Moulin2015-06-072
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* Configure the Mail Submission Agent.Guilhem Moulin2015-06-071
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* Configure the Mail Delivery Agent.Guilhem Moulin2015-06-071
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* Configure the MX:es.Guilhem Moulin2015-06-071
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* Share master.cf accross all Postfix instances.Guilhem Moulin2015-06-071
| | | | | | And use main.cf's 'master_service_disable' setting to deactivate each service that's useless for a given instance. (Hence solve conflict when trying to listen twice on the same port, for instance.)
* Use a dedicated SMTP port for samhain.Guilhem Moulin2015-06-072
| | | | | | | It's unfortunate that samhain cannot use the sendmail binary, and wants to use a inet socket instead. We use a custom port to avoid conflicts with the usual SMTP port the MX:es need to listen on. See also: /usr/share/doc/samhain/TODO.Debian
* Reorganization.Guilhem Moulin2015-06-072
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* Reformulate the headers showing the license.Guilhem Moulin2015-06-075
| | | | | To be clearer, and to follow the recommendation of the FSF, we include a full header rather than a single sentence.
* Common LDAP (slapd) configuration.Guilhem Moulin2015-06-072
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* Postfix master (nullmailer) configurationGuilhem Moulin2015-06-072
| | | | We use a dedicated instance for each role: MDA, MTA out, MX, etc.
* Fix unattended-upgrades's configuration.Guilhem Moulin2015-06-071
| | | | | ${distro_codename} doesn't work properly there, so we put stable and/or oldstable instead.
* wibbleGuilhem Moulin2015-06-071
| | | | | Replaced [ -n "$string" ] with [ "$string" ], and [ -z "$string" ] with [ ! "$string" ].
* Replace the 'syslog' facility (5) by 'user' (1).Guilhem Moulin2015-06-072
| | | | | 'syslog' is meant for the messages generated internally by syslogd, whereas 'user' is for user-level messages.
* wibbleGuilhem Moulin2015-06-072
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* Be more specific regarding the protocol in use for IPSec policies.Guilhem Moulin2015-06-072
| | | | We use ESP only, so other protocols shouldn't be ACCEPTed.
* Prohibit binding against the IP reserved for IPSec.Guilhem Moulin2015-06-072
| | | | | | | | | 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
* Prefer maching on policy rather than marks.Guilhem Moulin2015-06-071
| | | | Also, use ESP tunnel mode instead of transport mode.
* Preserve canonical the order of IP tables.Guilhem Moulin2015-06-071
| | | | I.e., as packets are treated along the way: mangle -> nat -> filter.
* Documentation.Guilhem Moulin2015-06-071
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* Use a dedicated, non-routable, IPv4 for IPSec.Guilhem Moulin2015-06-073
| | | | | | | 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.
* Major refactoring of the firewall.Guilhem Moulin2015-06-072
| | | | | | | | | | Also, added some options: -f force: no confirmation asked -c check: check (dry-run) mode -v verbose: see the difference between old and new ruleset -4 IPv4 only -6 IPv6 only
* Don't save dynamic rules.Guilhem Moulin2015-06-071
| | | | | These rules are automatically included by third-party servers such as strongSwan or fail2ban.
* Use a dedicated 'fail2ban' chain for fail2ban.Guilhem Moulin2015-06-071
| | | | So it doesn't mess with the high-priority rules regarding IPSec.
* Add a 'check' switch to the firewall.Guilhem Moulin2015-06-071
| | | | | update-firewall.sh -c does not update the firewall, but returns a non-zero value iff. running it without the switch would modify it.
* Configure the (basic) logging policy.Guilhem Moulin2015-06-073
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* Configure rkhunter.Guilhem Moulin2015-06-072
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* Configure samhain.Guilhem Moulin2015-06-071
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* Configure v4 and v6 iptable rulesets.Guilhem Moulin2015-06-072
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* Configure APT.Guilhem Moulin2015-06-073