Several new features

- cht.sh stack : linux online cheatsheet. Usage : `cheat <command>`. Example for tar : `cheat tar`
- ClamAV anti-virus with weekly cronjob to update signatures database
- Internal function to add daily cronjobs
- Additional comment to detect previous configuration tuning (MariaDB & Redis)
- Domain/Subdomain detection based on public domain suffixes list
- Increase Nginx & MariaDB systemd open_files limits
- Cronjob to update Cloudflare IPs list

wo/cli/templates/cf-update.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+# WordOps bash script to update cloudflare IP
+
+CURL_BIN=$(command -v curl)
+CF_IPV4=$($CURL_BIN -sL https://www.cloudflare.com/ips-v4)
+CF_IPV6=$($CURL_BIN -sL https://www.cloudflare.com/ips-v6)
+
+echo -e '# WordOps (wo) set visitors real ip with Cloudflare\n' > /etc/nginx/conf.d/cloudflare.conf
+echo "####################################"
+echo "Adding Cloudflare IPv4"
+echo "####################################"
+for cf_ip4 in $CF_IPV4; do
+    echo "set_real_ip_from $cf_ip4;" >> /etc/nginx/conf.d/cloudflare.conf
+done
+echo "####################################"
+echo "Adding Cloudflare IPv6"
+echo "####################################"
+for cf_ip6 in $CF_IPV6; do
+    echo "set_real_ip_from $cf_ip6;" >> /etc/nginx/conf.d/cloudflare.conf
+done
+echo 'real_ip_header CF-Connecting-IP;' >> /etc/nginx/conf.d/cloudflare.conf
+
+nginx -t && service nginx reload

wo/cli/templates/freshclam.mustache

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+# WordOps ClamAV freshclam script
+# script path after installation /opt/freshcham.sh
+
+if [ -x /etc/init.d/clamav-freshclam ]; then
+{
+    /etc/init.d/clamav-freshclam stop
+    freshclam
+    /etc/init.d/clamav-freshclam start
+} >> /var/log/wo/clamav.log 2>&1
+fi