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* Route all internal SMTP traffic through IPsec.Guilhem Moulin2016-07-102
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* Postfix: don't share the master.cf between the instances.Guilhem Moulin2016-07-101
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* postfix: Update to recommended TLS settings.Guilhem Moulin2016-05-181
| | | | | | | | Following Viktor Dukhovni's 2015-08-06 recommendation http://article.gmane.org/gmane.mail.postfix.user/251935 (We're using stronger ciphers and protocols in our own infrastructure.)
* postfix: disable weak ciphers for the 'encrypt' TLS security level.Guilhem Moulin2016-05-181
| | | | That is, on the MSA and in our local infrastructure.
* Postfix TLS policy: Store the fingerprint of the cert's pubkey, not of the ↵Guilhem Moulin2015-12-031
| | | | cert itself.
* Internal Postfix config: Disable TLS protocols <1.2 rather than enable 1.2 only.Guilhem Moulin2015-10-271
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* Configure the list manager (Sympa).Guilhem Moulin2015-06-071
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* Ensure have a TLS policy for each of our host we want to relay to.Guilhem Moulin2015-06-071
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* Tell vim the underlying filetype of templates for syntax highlighting.Guilhem Moulin2015-06-071
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* Replace IPSec tunnels by app-level ephemeral TLS sessions.Guilhem Moulin2015-06-072
| | | | | 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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* 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.
* Assume a DNS entry for each role.Guilhem Moulin2015-06-071
| | | | | | E.g., ldap.fripost.org, ntp.fripost.org, etc. (Ideally the DNS zone would be provisioned by ansible, too.) It's a bit unclear how to index the subdomains (mx{1,2,3}, etc), though.
* Don't use IPSec to relay messages to localhost.Guilhem Moulin2015-06-071
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* Excplicitely make local services run on localhost.Guilhem Moulin2015-06-071
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* typoGuilhem Moulin2015-06-071
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* wibbleGuilhem 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 Moulin2015-06-071
| | | | | | | 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
* Postfix master (nullmailer) configurationGuilhem Moulin2015-06-071
We use a dedicated instance for each role: MDA, MTA out, MX, etc.