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* fail2ban: Only install the roundcube/dovecot filters if needed.Guilhem Moulin2018-12-151
| | | | | | It doesn't hurt to install them on all machines, but we're overriding the provided /etc/fail2ban/filter.d/dovecot.conf and would rather keep our delta minimal.
* submission: Prospective SPF checking.Guilhem Moulin2018-12-122
| | | | Cf. http://www.openspf.org/Best_Practices/Outbound .
* IPsec: use Suite-B-GCM-256 algorithms for IKEv2 & ESP.Guilhem Moulin2018-12-091
| | | | | | | (That is, remove algorithms from Suite-B-GCM-128.) Cf. https://wiki.strongswan.org/projects/strongswan/wiki/IKEv2CipherSuites and https://wiki.strongswan.org/projects/strongswan/wiki/SecurityRecommendations .
* MSA verification probes: enable opportunistic encryption.Guilhem Moulin2018-12-091
| | | | | | And use ‘noreply.fripost.org’ as HELO name rather than $myhostname (i.e., ‘smtp.fripost.org’), so the same SPF policy can be used for ehlo and envelope sender identities.
* Update 'IMAP', 'MSA' and 'LDAP-provider' roles to Debian Stretch.Guilhem Moulin2018-12-096
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* Disable resume device.Guilhem Moulin2018-12-093
| | | | We don't need suspend-on-disk (hibernation).
* systemd.service: Tighten hardening options.Guilhem Moulin2018-12-092
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* bacula-*.service: Don't fork in the background.Guilhem Moulin2018-12-091
| | | | Inspired from /lib/systemd/system/bacula-fd.service.
* Upgrade 'lists' role to Debian Stretch.Guilhem Moulin2018-12-091
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* Firewall: disable outgoing access to git:// remote servers.Guilhem Moulin2018-12-091
| | | | We don't need it anymore as we use https:// these days.
* systemd: Replace ‘ProtectSystem=full’ with ‘ProtectSystem=strict’.Guilhem Moulin2018-12-092
| | | | And remove ‘ReadOnlyDirectories=/’ as it's implied by ‘ProtectSystem=strict’.
* Firewall: REJECT outgoing connections instead of DROPing them.Guilhem Moulin2018-12-091
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* Don't install the haveged entropy daemon.Guilhem Moulin2018-12-092
| | | | | It's not really needed on our metal hosts, and our KVM guests use virtio-rng.
* ntp.conf: reduce delta with the packaged version.Guilhem Moulin2018-12-091
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* MX: chroot postscreen(8), smtpd(8) and cleanup(8) daemons.Guilhem Moulin2018-12-091
| | | | | | Unlike what we wrote in 2014 (cf. 4fb4be4d279dd94cab33fc778cfa318b93d6926f) the postscreen(8) server can run chrooted, meaning we can also chroot the smtpd(8), tlsproxy(8), dnsblog(8) and cleanup(8) daemons.
* postfix: remove explicit default 'mail_owner = postfix'.Guilhem Moulin2018-12-061
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* postfix ≥3.0: don't advertise SMTPUTF8 support.Guilhem Moulin2018-12-061
| | | | | | | | | | | | | | | | | We're relaying messages to our LMTP daemons (Dovecot, Amavisd) and some downstream SMTP servers, not all of which are under our control. Forwarding messages with UTF-8 envelope addresses or RFC 5322 headers yields undeliverable messages, and the bounces make us a potential backscatter source. So it's better to disable SMTPUTF8 at this point. Cf. also http://www.postfix.org/SMTPUTF8_README.html and https://unix.stackexchange.com/questions/320091/configure-postfix-and-dovecot-lmtp-to-receive-mail-via-smtputf8 . See also upstream's comment at https://marc.info/?l=postfix-users&m=149183235529042&w=2 : “Perhaps SMTPUTF8 autodetection could be more granular: UTF8 in the envelope is definitely problematic for a receiver that does not support SMTPUTF8, while UTF8 in a message header is less so.”
* DKIM: also include the "d=" tag in key filenames, not only the "s=" tag.Guilhem Moulin2018-12-051
| | | | | While the combination of "s=" tag (selector) & "d=" tag signing domain maps to a unique key, the selector alone doesn't necessarily.
* Install unbound on metal hosts.Guilhem Moulin2018-12-034
| | | | (A validating, recursive, caching DNS resolver.)
* Define new host "calima" serving Nextcloud.Guilhem Moulin2018-12-031
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* Upgrade syntax to Ansible 2.7 (apt module).Guilhem Moulin2018-12-039
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* Postfix: replace cdb & btree tables with lmdb ones.Guilhem Moulin2018-12-034
| | | | Cf. lmdb_table(5).
* IPsec: allow ISAKMP over IPv6.Guilhem Moulin2018-12-032
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* Upgrade baseline to Debian Stretch.Guilhem Moulin2018-12-0315
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* Skip samhain installation.Guilhem Moulin2018-12-034
| | | | It's become too verbose (too many false-positive)…
* Harden anti spam on the MX:es.Guilhem Moulin2018-06-091
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* More logcheck-database tweaks.Guilhem Moulin2018-04-043
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* Postfix: replace 'fifo' types with 'unix', as it's the new default.Guilhem Moulin2018-04-041
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* sympa: wibbleGuilhem Moulin2018-04-041
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* Firewall: Allow DNS queries over TCP.Guilhem Moulin2018-04-041
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* APT: use deb.debian.org as archive source.Guilhem Moulin2018-04-041
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* Perform recipient address verification on the MSA itself.Guilhem Moulin2018-04-042
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* Upgrade syntax to Ansible 2.5.Guilhem Moulin2018-04-043
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* Upgrade syntax to Ansible 2.4.Guilhem Moulin2017-11-231
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* More logcheck-database tweaks.Guilhem Moulin2017-09-143
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* Fix detection of KVM guests.Guilhem Moulin2017-07-293
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* rkhunter: Disable remote updates to fix CVE-2017-7480.Guilhem Moulin2017-07-291
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* Use MariaDB as default MySQL flavor.Guilhem Moulin2017-07-291
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* Don't install debsecan anymore by default.Guilhem Moulin2017-06-262
| | | | https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=789196
* Webmail: don't allow outgoing TCP/993 connections.Guilhem Moulin2017-06-151
| | | | We're going through IPsec to communicate with the IMAP server.
* More logcheck-database tweaks.Guilhem Moulin2017-06-071
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* postfix-sender-login: wibbleGuilhem Moulin2017-06-051
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* dovecot: enable user iteration and add a cronjob for `doveadm purge -A`Guilhem Moulin2017-06-051
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* postfix: enable XFORWARD command from our internal relays.Guilhem Moulin2017-06-021
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* postfix: don't rate-limit our IPsec subnet.Guilhem Moulin2017-06-022
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* Don't let authenticated client use arbitrary sender addresses.Guilhem Moulin2017-06-011
| | | | | | | | | | | | | | The following policy is now implemented: * users can use their SASL login name as sender address; * alias and/or list owners can use the address as envelope sender; * domain postmasters can use arbitrary sender addresses under their domains; * domain owners can use arbitrary sender addresses under their domains, unless it is also an existing account name; * for known domains without owner or postmasters, other sender addresses are not allowed; and * arbitrary sender addresses under unknown domains are allowed.
* /lib/systemd/system → /etc/systemd/systemGuilhem Moulin2017-05-315
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* Also install non-free firmwares on civett.Guilhem Moulin2017-05-302
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* Change group of executables in /usr/local/{bin,sbin} from root to staff.Guilhem Moulin2017-05-142
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* MSA: reject null sender address.Guilhem Moulin2017-05-141
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