Autorarchive: André P.

Über André P.

Seit einigen Jahren in der IT unterwegs, teile ich nun auch meine Gedanken und Ideen in Form dieses Blogs.

Snippet: GoCryptFS kompilieren (für HW-beschleunigtes AES) und Systemd Dienst einrichten

Linux Snippets Keine Kommentare

Wichtig: Nach der Initialisierung den Master-Key sicher speichern!

# 1.
yum install openssl-devel fuse

# 2.
go get -d github.com/rfjakob/gocryptfs
cd $(go env GOPATH)/src/github.com/rfjakob/gocryptfs
./build.bash
cp gocryptfs /usr/local/bin/

# 3.
mkdir -p /data/{crypted,decrypted}

# 4.
if [ ! -f /data/crypted/gocryptfs.conf ]; then
  if ! gocryptfs -init /data/crypted; then
    echo "cannot init /data/crypted directory, skipping"
  fi
else
  echo "/data/crypted is an initialized gocryptfs directory"
fi

# 5.
systemctl stop gocryptfs

# 6.
cat << 'EOF' > /etc/systemd/system/gocryptfs.service
[Unit]
Description=gocryptfs Mount Unit
Requires=network.target local-fs.target
After=network.target local-fs.target
[Service]
Type=forking
ExecStart=/usr/local/bin/gocryptfs -extpass "systemd-ask-password GoCryptFS:" -allow_other /data/crypted/ /data/decrypted/
Restart=on-failure
RestartSec=5
[Install]
WantedBy=multi-user.target
EOF

systemctl daemon-reload
# Do not start on boot
systemctl disable gocryptfs

# 7.
until systemctl start gocryptfs; do
  sleep 1
done

Template Zammad Reverse Proxy mit Apache

Snippets Keine Kommentare
<VirtualHost *:80>
  ServerName ticket.domain.tld
  RewriteEngine on
  RewriteCond %{HTTPS} !=on
  RewriteRule ^/?(.*) https://%{HTTP_HOST}/$1 [R=301,L]
  ProxyPass / http://127.0.0.1:8090/
  ProxyPassReverse / http://127.0.0.1:8090/
  ProxyPreserveHost On
  ProxyAddHeaders On
  RequestHeader set X-Forwarded-Proto "http"
</VirtualHost>
<VirtualHost *:443>
  ServerName ticket.domain.tld
  ProxyPass /ws ws://127.0.0.1:8090/ws
  ProxyPassReverse /ws ws://127.0.0.1:8090/ws
  ProxyPass / http://127.0.0.1:8090/
  ProxyPassReverse / http://127.0.0.1:8090/
  ProxyPreserveHost On
  ProxyAddHeaders On
  RequestHeader set X-Forwarded-Proto 'https'env=HTTPS
  RequestHeader set X-Forwarded-Ssl on
  SSLCertificateFile /etc/letsencrypt/live/ticket.domain.tld/fullchain.pem
  SSLCertificateKeyFile /etc/letsencrypt/live/ticket.domain.tld/privkey.pem
Include /etc/letsencrypt/options-ssl-apache.conf
</VirtualHost>

Rspamd: Subject umschreiben und Reply-To hinzufügen

Linux Snippets Keine Kommentare

Ändert Subject auf „[Tag] Altes-Subject“ und fügt einen Reply-To „moo@moo.com“ hinzu.

Die alten Headerfelder werden vorher entfernt.

Nur ein Snippet.

remove_headers { X = 0 } sollte alle Header entfernen, nicht nur den ersten. Beim Subject und Reply-To eher unnötig.

rspamd_config:register_symbol({
  name = 'SUBJECT_REWRITE_ADD_HEADER',
  type = 'postfilter',
  callback = function(task)
    local util = require("rspamd_util")
    local rspamd_logger = require "rspamd_logger"
    local mailcow_domain = task:get_symbol("RCPT_MAILCOW_DOMAIN")
    if mailcow_domain then
      local tag = "Tag"
      rspamd_logger.infox("add fancy list header")
      local sbj = task:get_header('Subject')
      new_sbj = '=?UTF-8?B?' .. tostring(util.encode_base64('[' .. tag .. '] ' .. sbj)) .. '?='
      task:set_milter_reply({
        remove_headers = {
          ['Subject'] = 1,
          ['Reply-To'] = 1,
        },
        add_headers = {
          ['Subject'] = new_sbj,
          ['Reply-To'] = 'moo@moo.com'
        }
      })
    end
  end,
  priority = 11
})