Commit Graph

636 Commits

Author SHA1 Message Date
f070fd9a64
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
2021-11-07 10:12:43 +02:00
ebd8b0632b
roles/common: Disable unsafe Diffie-Hellman SSH moduli
The WeakDH team showed (in 2015) that Diffie-Hellman key exchange
with prime number groups of 1024 bits or less were weaker than we
previously thought, and well within the reach of nation states. They
recommended (in 2015) using 2048-bit or higher prime groups.

The SSH audit project recommends that we should use 3072-bit now.

See: https://weakdh.org/
See: https://github.com/jtesta/ssh-audit/
2021-10-10 16:57:05 +03:00
df26b6c17e
roles/common: notify fail2ban after updating firewall
We should always restart fail2ban after updating the firewall. Also
note that the order of execution of handlers depends on how they are
defined in the handler config, not on the order they are listed in
the task's notify statement.

See: https://docs.ansible.com/ansible/latest/user_guide/playbooks_handlers.html
2021-09-28 10:45:51 +03:00
d92151b8a6
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

Note: there were no IPv6 addresses in the top 10,000 this time so I
used a dummy address for the nftables set so the syntax was valid.
2021-09-28 10:28:02 +03:00
b13ead0657
roles/common: use a range for mosh ports in nftables
This is better than a loop in Jinja (though that is useful!).
2021-09-28 07:34:25 +03:00
89fd642b78
roles/nginx: minor rework of acme.sh tasks
After the inital acme.sh script is downloaded and bootstrapped we
can remove it. If a host already has been bootstrapped then there
is no need to download it and do it over again.
2021-09-27 13:40:17 +03:00
65e6dd34cd
roles/common: Add missing section to Debian 11 sshd_config
We need to be able to configure the list of SSH users.
2021-09-27 12:59:27 +03:00
d5eed5055e
roles/nginx: Add support for gitea
gitea hosts are basically webservers, but we need to proxy pass. I
am setting up gitea itself manually for now.
2021-09-27 12:15:47 +03:00
f8752bb3e7
roles/nginx: add todo about document roots
We assume it's always /var/www/$domain_name but it can be overriden
in the host_vars...
2021-09-27 12:05:53 +03:00
170e591701
roles/common: Install rsync and lsof 2021-09-27 11:36:40 +03:00
8d6c3c57c3
roles/nginx: install acme.sh after downloading
This is basically just bootstrapping it. I used to do this by hand
before requesting the certs.
2021-09-27 11:28:02 +03:00
79b29f0c51
roles/nginx: generate snakeoil cert manually
The ssl-cert does this, but it includes the hostname of the server
as the subject name in the cert, which is a huge leak of privacy.
2021-09-27 10:48:24 +03:00
a4acc85704
roles/common: Remove iptables on newer Debian 2021-09-27 10:35:38 +03:00
f7b9aa67f5
roles/common: Fix comment about Debian 10 firewall 2021-09-27 10:31:31 +03:00
341a1bf11e
roles/php-fpm: Install php7.4-xml
The RSS feeds in the WordPress admin dashboard need this.
2021-09-13 10:19:33 +03:00
6ee389eda5
roles/php-fpm: Use concrete dependencies
The php-gd, php-mysql, etc packages are meta packages that just end
up installing the concrete ones for our specific version.
2021-09-13 10:18:40 +03:00
20cd6f213c
roles/common: cache_valid_time explicitly sets update_cache
See: https://docs.ansible.com/ansible/latest/collections/ansible/builtin/apt_module.html
2021-09-08 21:59:51 +03:00
34a30c4d13
roles/common: Don't update apt cache when removing packages 2021-09-08 17:05:48 +03:00
c03e75d736
roles/common: explicitly install systemd-timesyncd
It is a standalone package on (at least) Ubuntu 20.04 and Debian 11
and some cloud images do not have it installed by default (for exa-
mple Scaleway).
2021-09-08 17:04:46 +03:00
d08f10f9c8
roles/common: Fix comment in ntp playbook 2021-09-08 17:04:20 +03:00
8467dc1300
roles/mariadb: Change socket location
Instead of using /var/run, just use /run directly. This is the real
path and it's the default anyways.
2021-09-08 15:50:48 +03:00
635bb5234d
roles/common: fix logic for copying AbuseIPDB.com nft sets
We have to force these because they are not updated on the host like
the other lists (API limit of five requests per day!). We update the
list periodically here in git.
2021-09-08 09:58:13 +03:00
37901da5b5
roles/common: update AbuseIPDB lists for nftables 2021-09-08 09:57:58 +03:00
e36ae3b11e
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
2021-09-08 09:35:36 +03:00
81c1231a28
roles/php-fpm: Fix logic
First, we cannot do a global check for has_wordpress or needs_php,
as those are defined per nginx vhost. Second, I realized that this
was only working in the past because vhosts that had WordPress or
needed PHP were listed first in the nginx_vhosts dict.

This changes the logic to first check if any vhosts have WordPress
or need PHP, then sets a fact that we can use to decide whether to
run php-fpm tasks or not.
2021-09-08 09:32:06 +03:00
bb6f058025
roles/php-fpm: whitespace 2021-09-07 20:12:31 +03:00
547395b26e
roles/nginx: Use php7.4-fpm socket on Debian 11 as well 2021-09-07 17:51:54 +03:00
15208241d3
roles/common: Add git-lfs to base packages 2021-09-07 17:51:33 +03:00
0fd05d496e
roles/nginx: Set mode of downloaded acme.sh 2021-09-07 17:10:35 +03:00
023a0d48ba
roles/nginx: Remove old comment 2021-09-07 17:07:53 +03:00
c687b7a91a
roles/nginx: Run Let's Encrypt on Debian 11 too 2021-09-07 17:07:33 +03:00
bd4ae36bb6
roles/mariadb: use socket for all operations
Otherwise Ansible will try to connect with host 'localhost', which
we do not use (and we have disabled name resolution anyways).
2021-09-07 16:48:15 +03:00
b60637c7d9
roles/mariadb: Update comments for Ansible module 2021-09-07 16:47:47 +03:00
479127a5e4
roles/common: Fix nftables handler in Debian firewall
We used to use reload, but now the idempotent thing to do is to use
restart instead of reload.
2021-09-07 15:43:33 +03:00
d261f81642
roles/php-fpm: Use Ubuntu 20.04 configs on Debian 11
They both use PHP 7.4.
2021-09-06 21:19:57 +03:00
575a9fdfe6
roles/common: Add mosh ports to common
These have been in each hosts's "extra" rules lists forever and I
use them on every single host so they might as well be in the base
rules.
2021-09-05 16:23:42 +03:00
35fa3b0d72
roles/common: Fix typo in handlers 2021-09-05 16:19:31 +03:00
f7e87ea7be
roles/common: Fix fail2ban ignoreip
According to jail.conf we actually need to separate multiple values
with spaces instead of commas. On some versions of fail2ban this is
a fatal error:

> CRITICAL Unhandled exception in Fail2Ban:
> Traceback (most recent call last):
>   File "/usr/lib/python3/dist-packages/fail2ban/server/jailthread.py", line 66, in run_with_except_hook
>     run(*args, **kwargs)
>   File "/usr/lib/python3/dist-packages/fail2ban/server/filtersystemd.py", line 246, in run
>     *self.formatJournalEntry(logentry))
>   File "/usr/lib/python3/dist-packages/fail2ban/server/filter.py", line 432, in processLineAndAdd
>     if self.inIgnoreIPList(ip, log_ignore=True):
>   File "/usr/lib/python3/dist-packages/fail2ban/server/filter.py", line 371, in inIgnoreIPList
>     "(?<=b)1+", bin(DNSUtils.addr2bin(s[1]))).group())
>   File "/usr/lib/python3/dist-packages/fail2ban/server/filter.py", line 928, in addr2bin
>     return struct.unpack("!L", socket.inet_aton(ipstring))[0]
> OSError: illegal IP address string passed to inet_aton

This affects (at least) fail2ban 0.9.3 on Ubuntu 16.04, but I never
noticed.
2021-08-12 15:24:50 +03:00
b5ea575d8d
roles/common: Always restart nftables service
The "reload" capability only exists on Ubuntu, and it is exactly
the same as the "restart" functionality.
2021-08-01 14:23:00 +03:00
98cc3a8c2e
Add nginx filter for fail2ban
Some hosts can use fail2ban's nginx-botsearch filter to ban anyone
making requests to non-existent files like wp-login.php. There is
no reason to request such files naively and anyone found doing so
can be banned immediately.

In theory I should report them to AbuseIPDB.com, but that will take
a little more wiring up.
2021-08-01 09:56:43 +03:00
a67d901641
roles/common: Use AbuseIPDB.com list in nftables
For now I am still manually updating this, as we can only hit their
API five times per day, so it is not possible to have each host get
the list themselves every day with our one API key.
2021-07-31 21:46:50 +03:00
7ae100faeb
roles/common: Add comments to nftables.conf 2021-07-30 09:37:30 +03:00
debcb21161
roles/common: Install curl for Abuse.ch update scripts 2021-07-29 10:24:32 +03:00
8dd7663b3c
roles/common: Use Abuse.ch's SSL Blacklist in nftables
This adds Abuse.sh's list of IPs using blacklisted SSL certificates
to nftables. These IPs are high confidence indicators of compromise
and we should not route them. The list is updated daily by a systemd
timer.

See: https://sslbl.abuse.ch/blacklist/
2021-07-29 10:16:00 +03:00
cba2a7a996
roles/common: Fix nftables in Debian firewall
The previous commit meant to move the service start, not the config
copying task.
2021-07-29 10:10:04 +03:00
197bdf7666
roles/common: Start nftables service later
We should only try to start the nftables service after we finish
copying all the config files just in case there is some unclean
state in one of them. On a first run this shouldn't matter, but
after nftables and some abuse list update scripts have run this
can happen (mostly in testing!).
2021-07-29 10:05:15 +03:00
46fc2ce3d4
roles/common: Move cleanup to a one-off play
We only need to run this once on existing hosts that are using the
old firewalld/ipsets setup before applying the new nftables config.
2021-07-29 10:00:30 +03:00
b4d50166f4
roles/common: Fix loop in firewall cleanup 2021-07-28 23:46:53 +03:00
af6c3dd12a
roles/common: Update cache in firewall playbook
cron-apt updates the system against the security-only databases at
night so many packages are "missing" unless you run apt update. We
need to update the cache on all apt tasks actually because I might
be running them by their tag and they currently only get updated at
the beginning of the playbook.
2021-07-28 14:46:58 +03:00
b66c724109
roles/common: Use nftables on Ubuntu 20.04 as well
This mostly copies the Debian 11 nftables setup and includes a play
to clean up the old firewalld settings, timers, etc.
2021-07-28 14:18:41 +03:00
8bc2b6f493
roles/common: Retab nftables.conf.j2 2021-07-27 22:03:23 +03:00
a74d6dfc08
roles/common: Don't overwrite spamhaus nft sets
The ones in this repo are only placeholders that get updated by the
update-spamhaus-nftables service, so we shouldn't overwrite them if
they exist.
2021-07-27 22:01:57 +03:00
d3922e7878
roles/common: Port configurable firewall logic to nftables
This opens TCP port 22 on all hosts, TCP ports 80 and 443 on hosts
in the web group, and allows configuration of "extra" rules in the
host or group vars.
2021-07-27 21:22:32 +03:00
14814aa5d9
roles/common: Wire up fail2ban
The nftables support works easily and creates the table, chains, and
sets on demand.
2021-07-26 22:07:31 +03:00
3b053167b1
roles/common: Fix sources.list for Debian 11 Bullseye
Seems the path to the security updates repo changed.
2021-07-26 21:12:05 +03:00
9bba0d96bb
roles/common: Add initial support for nftables on Debian 11
I will try using nftables directly instead of via firewalld as of
Debian 11 as it is the replacement for the iptables/ipset stack in
recent years and is easier to work with.

This also includes a systemd service, timer, and script to update
the spamhaus DROP lists as nftables sets.

Still need to add fail2ban support.
2021-07-26 13:09:41 +03:00
38c333045b
roles/common: bring Ubuntu firewall changes to Debian 11
Note that there is currently an issue loading the spamhaus rules on
Debian 11 when using ipsets with firewalld and the nftables backend.
The bug is apparently caused by overlapping CIDR segments, and the
solution appears to be that we need to manually aggregate them with
a tool like aggregate6 (Python).

See: https://bugzilla.redhat.com/show_bug.cgi?id=1836571
See: https://wiki.fysik.dtu.dk/it/Linux_firewall_configuration#using-ipsets-in-firewalld-on-rhel-centos-8
See: https://github.com/job/aggregate6
2021-07-24 23:09:33 +03:00
d4ede33099
roles/common: Don't configure apt sources on ARM
I was using this on Ubuntu, but might as well bring it here too so
that I can run Debian on Scaleway's ARM instances, for example.
2021-07-24 22:32:20 +03:00
0bad75788d
roles/common: Add encryption settings to Debian 11 sshd_config
Mostly based on the ssh-audit policy for OpenSSH 8.4, but with any
algorithms using less than 256 bits removed. NSA's Suite B removed
these long ago, and the new CNSA suite only uses 256 and up.

See: https://github.com/jtesta/ssh-audit/blob/master/src/ssh_audit/policy.py
See: https://en.wikipedia.org/wiki/Commercial_National_Security_Algorithm_Suite
2021-07-24 22:28:59 +03:00
892033b880
roles/common: port common settings to Debian 11 sshd_config
Still need to add the encryption settings.
2021-07-22 14:16:20 +03:00
7c6ab2a652 roles/common: Add sshd_config from Debian 11 RC2 2021-07-22 14:15:00 +03:00
1c95c1faa8
roles/common: Update KexAlgorithms in Ubuntu 20.04 sshd_config
Recommended by ssh-audit. Note that curve25519-sha256 is the new name
for the previously private implementation in libssh.
2021-07-22 12:57:31 +03:00
9ea14de6f5
roles/common: Remove Encrypt-and-MAC modes from Ubuntu 20.04 sshd_config
Recommended by ssh-audit, but also generally the concensus for a few
years that Encrypt-and-MAC is hard to get right. OpenSSH has several
Encrypt-then-MAC schemes available so we can use those.

See: https://www.daemonology.net/blog/2009-06-24-encrypt-then-mac.html
2021-07-22 12:48:12 +03:00
9b7a31ebf9
roles/common: Remove 00-persistent-journal.conf
This was to enable the persistent systemd journal, but it is no lo-
nger needed as of Ubuntu 18.04 and Debian 11. I had removed the ta-
asks long ago, but forgot to remove this file.
2021-07-21 10:02:33 +03:00
d7c34a30a3
roles/common: Add Spamhaus DROP lists to firewalld ipsets
This configures the recommended DROP, EDROP, and DROPv6 lists from
Spamhaus as ipsets in firewalld. First we copy an empty placeholder
ipset to seed firewalld, then we use a shell script to download the
real lists and activate them. The same shell script is run daily as
a service (update-spamhaus-lists.service) by a systemd timer.

I am strictly avoiding any direct ipset commands here because I want
to make sure that this works on older hosts where ipsets is used as
well as newer hosts that have moved to nftables such as Ubuntu 20.04.
So far I have tested this on Ubuntu 16.04, 18.04, and 20.04, but ev-
entually I need to abstract the tasks and run them on CentOS 7+ as
well.

See: https://www.spamhaus.org/drop/
2021-07-21 09:34:51 +03:00
531ff99af0
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
2021-07-04 11:15:32 +03:00
82d3a7ff2a
roles/nginx: Add convenience tags to fact task 2021-07-01 18:17:14 +03:00
6c3cf40a16
roles/nginx: Use snakeoil cert from ssl-cert
Instead of manually creating our own self-signed certificate we can
use the one created automatically by the ssl-cert package on Debian.
This is only used by the dummy default HTTPS vhost.
2021-07-01 18:11:34 +03:00
31a3f5832a
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
2021-05-20 10:20:47 +03:00
bd0b6a16de
roles/nginx/defaults/main.yml: Update version comment
Stable is now 1.20.0
2021-05-10 16:00:44 +03:00
7ba5afcec4
roles/nginx: Opt out of Google FLoC
Google's new Federated Learning of Cohorts (FLoC) will read user's
browser history and assign them to cohorts to track them unless we
set this header.
2021-04-16 12:41:09 +03:00
4150dac57b
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
2021-04-13 12:11:11 +03:00
58bc9d191f
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
2021-03-24 10:02:43 +02:00
96cefc7f74
roles/nginx: Parameterize HSTS header
This parameterizes the HTTP Strict Transport Security header so we
can use it consistently across all templates. Also, it updates the
max-age to be ~1 year in seconds, which is recommended by Google.

See: https://hstspreload.org/
2021-03-23 15:36:28 +02:00
f85eb2841a
roles/nginx: Add webroot to systemd renewal service 2021-03-20 00:18:17 +02:00
af49f27551
roles/nginx: Update comment in defaults 2021-03-19 23:50:39 +02:00
f341d2e5eb
roles/nginx: Remove nginx pre/post hooks
We are now using the well-known webroot.
2021-03-19 23:46:22 +02:00
ceba0ea417
roles/nginx: Use consistent task style 2021-03-19 23:45:41 +02:00
a34cb1e666
roles/nginx: Switch to acme.sh for Let's Encrypt
The certbot-auto client that I've been using for a long time is now
only supported if you install it using snap. I don't use snap on my
systems so I decided to switch to the acme.sh client, which is imp-
lemented in POSIX shell with no dependencies. One bonus of this is
that I can start using ECC certificates.

This also configures the .well-known directory so we can use webroot
when installing and renewing certificates. I have yet to understand
how the renewal works with regards to webroot, though. I may have to
update the systemd timers to point to /var/lib/letsencrypt/.well-known.
2021-03-19 23:39:30 +02:00
65fc52c5e5
roles/nginx: Use variable for nginx_ssl_dhparam
I went years without realizing that I was hard coding the file dest
in this particular task.
2021-03-19 18:13:55 +02:00
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