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* Tunnel bacula (dir → {fd,sd} and fd → sd) traffic through IPSec.Guilhem Moulin2016-05-226
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* Tunnel munin-update traffic through IPSec.Guilhem Moulin2016-05-227
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* Tunnel internal NTP traffic through IPSec.Guilhem Moulin2016-05-222
| | | | | | | More precisely, between our NTP-master (stratum 1) host and the other machines (all stratum 2). Providing authentification and integrity for internal NTP traffic ensures a consistent time within our internal infrastructure.
* Set up IPSec tunnels between each pair of hosts.Guilhem Moulin2016-05-2213
| | | | | | | | | | | | | | | We use a dedicated, non-routable, IPv4 subnet for IPSec. Furthermore the subnet is nullrouted in the absence of xfrm lookup (i.e., when there is no matching IPSec Security Association) to avoid data leaks. Each host is associated with an IP in that subnet (thus only reachble within that subnet, either by the host itself or by its IPSec peers). The peers authenticate each other using RSA public key authentication. Kernel traps are used to ensure that connections are only established when traffic is detected between the peers; after 30m of inactivity (this value needs to be less than the rekeying period) the connection is brought down and a kernel trap is installed.
* postfix: master.cf wibbleGuilhem Moulin2016-05-181
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* postfix: Update to recommended TLS settings.Guilhem Moulin2016-05-182
| | | | | | | | 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.)
* Move /etc/ssl/private/dhparams.pem to /etc/ssl/dhparams.pem and make it public.Guilhem Moulin2016-05-182
| | | | | | | | | | Ideally we we should also increase the Diffie-Hellman group size from 2048-bit to 3072-bit, as per ENISA 2014 report. https://www.enisa.europa.eu/publications/algorithms-key-size-and-parameters-report-2014 But we postpone that for now until we are reasonably certain that older client won't be left out.
* postfix: disable weak ciphers for the 'encrypt' TLS security level.Guilhem Moulin2016-05-181
| | | | That is, on the MSA and in our local infrastructure.
* Add an ansible module 'fetch_cmd' to fetch the output of a remote command ↵Guilhem Moulin2016-05-183
| | | | | | locally. And use this to fetch all X.509 leaf certificates.
* bacula: Set heartbeat options.Guilhem Moulin2016-05-122
| | | | and also TCP keepalive options in the stunnel config.
* Add hardening options to our systemd unit files.Guilhem Moulin2016-05-121
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* Use systemd unit files for stunnel4.Guilhem Moulin2016-05-1211
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* sysctl: don't set IPv6 privacy extensions globaly.Guilhem Moulin2016-04-011
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* sysctl: set net.ipv6.conf.all.accept_ra = 0.Guilhem Moulin2016-03-301
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* More logcheck-database tweaks.Guilhem Moulin2016-03-131
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* Ansible: Using bare variables is deprecated, and will be removed in a future ↵Guilhem Moulin2016-03-022
| | | | release.
* More logcheck-database tweaks.Guilhem Moulin2016-02-171
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* s/ansible_ssh_/ansible_/Guilhem Moulin2016-02-122
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* Upgrade playbooks to Ansible 2.0.Guilhem Moulin2016-02-125
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* Only install letsencrypt-tiny to the relevant hosts.Guilhem Moulin2015-12-282
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* Copy and install Let's Encrypt ACME client.Guilhem Moulin2015-12-201
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* Use the Let's Encrypt CA for our public certs.Guilhem Moulin2015-12-202
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* More logcheck-database tweaks.Guilhem Moulin2015-12-152
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* typoGuilhem Moulin2015-12-041
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* Postfix TLS policy: Store the fingerprint of the cert's pubkey, not of the ↵Guilhem Moulin2015-12-031
| | | | cert itself.
* More logcheck-database tweaks.Guilhem Moulin2015-12-011
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* More logcheck-database tweaks.Guilhem Moulin2015-11-121
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* Internal Postfix config: Generate RSA 4096 keys by default.Guilhem Moulin2015-10-281
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* genkeypair: use install(1) for atomic file creation with permission mode.Guilhem Moulin2015-10-282
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* Internal Postfix config: Disable TLS protocols <1.2 rather than enable 1.2 only.Guilhem Moulin2015-10-271
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* stunnel: disable compression.Guilhem Moulin2015-10-272
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* stunnel: use GCM ciphers only; use SSL options rather than ciphers to ↵Guilhem Moulin2015-10-272
| | | | disable protocols.
* More logcheck-database tweaks.Guilhem Moulin2015-10-142
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* More logcheck-database tweaks.Guilhem Moulin2015-09-241
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* More logcheck-database tweaks.Guilhem Moulin2015-09-212
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* More logcheck-database tweaks.Guilhem Moulin2015-09-151
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* Configure FreshClam.Guilhem Moulin2015-09-152
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* More logcheck-database tweaks.Guilhem Moulin2015-08-213
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* Update unattended-upgrades configuration.Guilhem Moulin2015-07-191
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* Change match to "^(Genuine)?Intel.*" for Intel processors.Guilhem Moulin2015-07-123
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* More logcheck-database tweaks.Guilhem Moulin2015-06-221
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* logcheck: Match only hexdigits in postfix queue ID.Guilhem Moulin2015-06-191
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* Match IPv6 addresses in logcheck rules.Guilhem Moulin2015-06-191
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* Use a single LDAP connection per Munin round to collect slapd statistics.Guilhem Moulin2015-06-113
| | | | Using multigraphs instead.
* More logcheck-database tweaks.Guilhem Moulin2015-06-103
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* slapd monitoring.Guilhem Moulin2015-06-102
| | | | | We don't use the provided 'slapd_' Munin plugin because it doesn't support SASL binds.
* Configure munin nodes & master.Guilhem Moulin2015-06-1015
| | | | | Interhost communications are protected by stunnel4. The graphs are only visible on the master itself, and content is generated by Fast CGI.
* Don't assume that Postfix queue ID are always 10-digits long.Guilhem Moulin2015-06-101
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* Add a reserved domain 'discard.fripost.org' to discard messages.Guilhem Moulin2015-06-071
| | | | | ‘noreply@’ aliases can be added by routing them to ‘@discard.fripost.org’.
* Make the webmail connect directly to the outgoing SMTP proxy.Guilhem Moulin2015-06-072
| | | | | (Hence delete the 'webmail' Postfix instance.) This shortens the delay caused by the recipient verification probes.
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