Commit Graph

506 Commits

Author SHA1 Message Date
7f72a9eda4
roles/nginx: Use RFC 7919 4096-bit dhparams
Recommended by internet.nl, which made me aware of RFC 7919.

See: https://tools.ietf.org/html/rfc7919#page-14
2021-03-19 13:13:56 +02:00
db412066b3
roles/mariadb: Only create users on 127.0.0.1 and ::1
A few months ago I disabled hostname lookups so only IP addresses
work now anyways.
2021-02-13 13:11:28 +02:00
63a836e2a7
roles/common: Update Tarsnap GPG key
Apparently this changed since I last ran the tarsnap task.
2021-02-13 12:57:17 +02:00
cd4411260c
roles/common: Update list of abusive IP addresses
This comes from the AbuseIPDB with a confidence level of 95%. I use
the following command to download and sort the IPs:

  $ curl -G https://api.abuseipdb.com/api/v2/blacklist -d \
    confidenceMinimum=95 -H "Key: $ABUSEIPDB_API_KEY" \
    -H "Accept: text/plain" | sort | sed -e '/:/w /tmp/ipv6.txt' \
    -e '/:/d' > /tmp/ipv4.txt

I manually add the XML formatting to each file and run them through
tidy:

  $ tidy -xml -utf8 -m -iq -w 0 roles/common/files/abusers-ipv4.xml
  $ tidy -xml -utf8 -m -iq -w 0 roles/common/files/abusers-ipv6.xml
2021-02-07 15:56:33 +02:00
b0420d2adb
roles: Remove mentions of Piwik
I never check the damn analytics stats and the database is huge.
2021-01-06 09:00:18 +02:00
ac860e72f2
roles/php-fpm: Only run PHP tasks if we need them 2021-01-01 19:54:12 +02:00
1b75679496
roles/mariadb: The service is mariadb 2020-12-29 11:25:30 +02:00
ebf4a4c2ac
roles/mariadb: Disable name lookups
Add skip-name-resolve=1 to disable lookups of hostnames to IPs. We
need to make sure all accounts are using IPs like 127.0.0.1 instead
of "localhost" now.
2020-12-29 11:19:01 +02:00
57a83cef26
roles/mariadb: Tweak temp table size
mysqltuner.pl said:

    When making adjustments, make tmp_table_size/max_heap_table_size equal
2020-12-29 11:10:31 +02:00
8ee52143fc
roles/mariadb: Disable the query cache by default
It seems that the usefulness of the query cache is diminishing in
recent years. If your cache is large then the time taken to scan
the cache can be longer than the SQL query itself.

See: https://haydenjames.io/mysql-query-cache-size-performance/
2020-12-29 11:07:33 +02:00
67a18c4f49
roles/mariadb: Reduce key buffer size
mysqltuner.pl shows currently 6M out of 33M being used.
2020-12-29 10:58:12 +02:00
b8428e67a8
roles/mariadb: Install MariaDB 10.5 2020-12-29 10:41:27 +02:00
e18529e6e1
roles/mariadb: Update service name
As of MariaDB 10.5 the service name and binaries have changed from
mysql, mysqld, etc to mariadbd.

See: https://mariadb.com/kb/en/upgrading-from-mariadb-104-to-mariadb-105/
2020-12-29 10:40:13 +02:00
89db1449d1
roles/mariadb: Fetch signing key from mariadb.org
I downloaded the key and checked the fingerprint with gpg:

    $ gpg --dry-run --import mariadb_release_signing_key.asc
    gpg: key F1656F24C74CD1D8: 6 signatures not checked due to missing keys
    gpg: Total number processed: 1
2020-12-29 10:36:33 +02:00
6660a0cd36
roles/mariadb: Remove innodb_buffer_pool_instances
This was deprecated in MariaDB 10.5. The setting is now ignored and
will be removed in a future version.

See: https://mariadb.com/kb/en/changes-improvements-in-mariadb-105/#innodb-removed-or-deprecated-variables
2020-12-29 10:18:23 +02:00
73d6abd15f
roles/nginx: Allow sites to override the root 2020-12-28 22:53:32 +02:00
e1b412bfff
roles/common: Update list of abusive IP addresses
This comes from the AbuseIPDB with a confidence level of 95%. I use
the following command to download and sort the IPs:

  $ curl -G https://api.abuseipdb.com/api/v2/blacklist -d \
    confidenceMinimum=95 -H "Key: $ABUSEIPDB_API_KEY" \
    -H "Accept: text/plain" | sort | sed -e '/:/w /tmp/ipv6.txt' \
    -e '/:/d' > /tmp/ipv4.txt

I manually add the XML formatting to each file and run them through
tidy:

  $ tidy -xml -utf8 -m -iq -w 0 roles/common/files/abusers-ipv4.xml
  $ tidy -xml -utf8 -m -iq -w 0 roles/common/files/abusers-ipv6.xml
2020-12-23 09:01:08 +02:00
d4fd06862a
roles/nginx: Fix Let's Encrypt pre/post renewal hooks 2020-12-10 15:20:23 +02:00
4edf92fe0d
roles/common: Allow adding extra SSH users 2020-12-08 23:15:51 +02:00
dd2f65947d
roles/common: Update list of abusive IP addresses
This comes from the AbuseIPDB with a confidence level of 95%. I use
the following command to download and sort the IPs:

    $ curl -G https://api.abuseipdb.com/api/v2/blacklist -d \
      confidenceMinimum=95 -H "Key: $ABUSEIPDB_API_KEY" \
      -H "Accept: text/plain" | sort | sed -e '/:/w /tmp/ipv6.txt' \
      -e '/:/d' > /tmp/ipv4.txt

I manually add the XML formatting to each file and run them through
tidy:

    $ tidy -xml -utf8 -m -iq -w 0 roles/common/files/abusers-ipv4.xml
    $ tidy -xml -utf8 -m -iq -w 0 roles/common/files/abusers-ipv6.xml
2020-11-06 15:44:57 +02:00
f4b104953c
roles/common: Use correct Ansible version comparison
The major version is "16", not "16.04".
2020-07-27 14:23:58 +03:00
c9ea286fff
roles/mariadb: Simplify sources.list 2020-07-14 09:51:35 +03:00
b366b0af3d
roles/nginx: Update version comment 2020-07-14 09:48:12 +03:00
0c192e6c4a
roles/munin: Remove tomcat config
We don't use tomcat here.
2020-07-14 09:47:39 +03:00
f5b6fa74c6
roles/munin: Use systemd module instead of service
All hosts are running systemd.
2020-07-14 09:47:18 +03:00
dbb4dd7098
roles/php-fpm: Add missing Ubuntu 20.04 PHP-FPM task 2020-07-14 09:45:51 +03:00
72b8b193b5
Remove support for Debian 9 and Ubuntu 16.04 2020-07-14 09:45:33 +03:00
539f081d4d
roles/common: Remove storage-specific tweaks
We don't have any "storage" group. This was ported from somewhere
else and I didn't notice that code.
2020-07-14 09:10:07 +03:00
a1f110c8bc
Add PHP 7.4 FPM support 2020-07-13 23:25:32 +03:00
20ab27e1d2
roles/php-fpm: Fix 7.4 pool config 2020-07-13 23:25:09 +03:00
7f5499c307
roles/php-fpm: Import config changes for PHP 7.4 2020-07-13 22:37:12 +03:00
057e98ab47
roles/php-fpm: Import Ubuntu 20.04 PHP 7.4 FPM configs 2020-07-13 22:34:02 +03:00
5282154d7d
roles/common: Disable Canonical spam in MOTD 2020-06-25 21:12:00 +03:00
99b55403d3
roles/common: Update list of abusive IP addresses
This comes from the AbuseIPDB with a confidence level of 95%. I use
the following command to download and sort the IPs:

$ curl -G https://api.abuseipdb.com/api/v2/blacklist -d \
  confidenceMinimum=95 -H "Key: $ABUSEIPDB_API_KEY" \
  -H "Accept: text/plain" | sort | sed -e '/:/w /tmp/ipv6.txt' \
  -e '/:/d' > /tmp/ipv4.txt

I manually add the XML formatting to each file and run them through
tidy:

    $ tidy -xml -utf8 -m -iq -w 0 roles/common/files/abusers-ipv4.xml
    $ tidy -xml -utf8 -m -iq -w 0 roles/common/files/abusers-ipv6.xml
2020-06-21 16:31:09 +03:00
9abfe80245 roles/nginx: Add pre and post hooks for Let's Encrypt on Ubuntu 20.04
Certbot will run any executables in the pre and post directories
during certificate renewal.
2020-06-08 12:15:29 +03:00
0587841476 roles/nginx: Adjust certbot tasks
It seems that it is no longer recommended/supported to install the
standalone certbot-auto client on Ubuntu 20.04. We apparently need
to use the one provided by Ubuntu, which luckily includes a service
and timer to renew the certs.
2020-06-08 12:15:29 +03:00
40ac858d60 roles/common: Ignore errors removing snaps
If the snap binary doesn't even exist then it means we've probably
already run this playbook and removed all installed snaps as well.
2020-06-08 12:15:29 +03:00
ba3004ef2b roles/common: Don't run rc.local task on Ubuntu 20.04
We haven't actually used rc.local since Ubuntu 16.04. Now anything
that we need to run at boot we can do with systemd anyways.
2020-06-08 12:15:29 +03:00
ef6ce2335e roles/common: Remove systemd-journald drop-in
Older Ubuntus originally didn't use a persistent journal, which was
somewhat of a surprise when looking at logs after a few months. Now
this does not seem to be an issue since Ubuntu 18.04. As for CentOS
I do not use that distro here so I don't need to care.
2020-06-08 12:15:29 +03:00
6fcb1290fe roles/common: Port sshd_config changes from Debian 10 to Ubuntu 20.04
By now the recommendations we were using as guidance are five years
old. The ciphers have not changed much since then.
2020-06-08 12:15:29 +03:00
5a58d93dfe roles/common: Import sshd_config for Ubuntu 20.04 2020-06-08 12:15:29 +03:00
870bdbfcc3 roles/common: Harden fail2ban service on Ubuntu 20.04 2020-06-08 12:15:29 +03:00
96f62a17d1 roles/common: Use nftables backend in firewalld on Ubuntu 20.04
The nftables backend should be more performant and flexible. I had
been planning to use it on Ubuntu 18.04 and Debian 10 as well, but
there were issues with the specific versions used in those distros.

See: https://firewalld.org/2018/07/nftables-backend
2020-06-08 12:15:29 +03:00
29bbc14068 roles/common: Remove ufw from Ubuntu systems
We never used this simple firewall utility and in at least one case
a user on the server tried to use it and messed up the rules I had
set via firewalld.
2020-06-08 12:15:29 +03:00
7288a85e72 roles/common: Remove snaps on Ubuntu 20.04
The list of pre-installed snaps and system packages is different on
Ubuntu 20.04 than it was in previous LTS releases.

See: https://www.kevin-custer.com/blog/disabling-snaps-in-ubuntu-20-04/
2020-06-08 12:15:29 +03:00
5242493b53
roles/common: Update list of abusive IP addresses
This comes from the AbuseIPDB with a confidence level of 95%. I use
the following command to download and sort the IPs:

$ curl -G https://api.abuseipdb.com/api/v2/blacklist -d \
  confidenceMinimum=95 -H "Key: $ABUSEIPDB_API_KEY" \
  -H "Accept: text/plain" | sort | sed -e '/:/w /tmp/ipv6.txt' \
  -e '/:/d' > /tmp/ipv4.txt

I manually add the XML formatting to each file and run them through
tidy:

    $ tidy -xml -utf8 -m -iq -w 0 roles/common/files/abusers-ipv4.xml
    $ tidy -xml -utf8 -m -iq -w 0 roles/common/files/abusers-ipv6.xml
2020-06-03 10:10:49 +03:00
ed2e0efd9c
roles/common: Actually remove annoying Ubuntu motd spam 2020-04-24 22:37:50 +03:00
4b5d17ef8c
roles/nginx: Update comment about versions 2020-03-16 18:06:28 +02:00
03254d6aae
roles/common: Use normal tarsnap GPG packaging key 2020-03-16 18:03:53 +02:00
e169a3744a
roles/nginx: Fix munin.conf for nginx_status
This config stopped working a few years ago probably when hosts started
getting IPv6 and we need to allow ::1. Make sure we're only listening
on local loopback interfaces also.
2020-03-10 12:23:12 +02:00