Merge branch 'master' of github.com:brunofontes/linuxShortcuts

Services/fixDNS.sh

@@ -0,0 +1,37 @@
+function isDNSWorking() {
+    dnsWorking=$(dig brunofontes.net | grep "ANSWER: 0")
+}
+logfile="/var/log/bfontes"
+
+sudo echo "$(date +"%Y-%m-%d %H:%M:%S") - Checking if DNS is working" >> "$logfile"
+isDNSWorking
+
+if [ "$dnsWorking" ]; then
+    sudo echo "$(date +"%Y-%m-%d %H:%M:%S") - DNS not working, hour may be wrong. Trying to fix..." >> "$logfile"
+    sudo chattr -i /etc/resolv.conf
+    sudo sed -i 's/127.0.0.2/9.9.9.9/' /etc/resolv.conf 2>>"$logfile"
+    sudo chattr +i /etc/resolv.conf
+
+    sudo echo "$(date +"%Y-%m-%d %H:%M:%S") - Forcing time to sync" >> "$logfile"
+    sudo chronyc online 2>"$logfile"
+    sudo chronyc -a 'burst 4/4'
+    i=0
+    while [ "$dnsWorking" -a $i -le 4 ]; do
+        sudo echo "$(date +"%Y-%m-%d %H:%M:%S") - Waiting..." >> "$logfile"
+        sleep 20
+        isDNSWorking
+        i=$(( "$i" + 1 ))
+    done
+
+    if [ -z "$dnsWorking" ]; then
+        sudo echo "$(date +"%Y-%m-%d %H:%M:%S") - FIXED!" >> "$logfile"
+    else
+        sudo echo "$(date +"%Y-%m-%d %H:%M:%S") - Script has failed..." >> "$logfile"
+        sudo echo "$(date +"%Y-%m-%d %H:%M:%S") - Fixing DNS script has failed. More details on $logfile" >> ~/.log_error
+    fi
+    sudo echo "$(date +"%Y-%m-%d %H:%M:%S") - Configuring DNS servers back." >> "$logfile"
+    sudo chattr -i /etc/resolv.conf
+    sudo sed -i 's/9.9.9.9/127.0.0.2/' /etc/resolv.conf
+    sudo chattr +i /etc/resolv.conf
+fi
+sudo echo "$(date +"%Y-%m-%d %H:%M:%S") - Done" >> "$logfile"

Services/testDNS.service

@@ -0,0 +1,11 @@
+[Unit]
+Description=Test and fix DNS update with wrong time
+Wants=network-online.target
+After=network-online.target
+
+[Service]
+Type=oneshot
+ExecStart = /bin/bash /home/bruno/Apps/linuxShortcuts/Services/fixDNS.sh
+
+[Install]
+WantedBy=multi-user.target

Services/updateRootHints.service

@@ -0,0 +1,6 @@
+[Unit]
+Description=Run update DNS root hints montly
+
+[Service]
+Type=oneshot
+ExecStart = /bin/bash /home/bruno/dns_update_rootHints.sh

Services/updateRootHints.timer

@@ -0,0 +1,9 @@
+[Unit]
+Description=Run update DNS root hints montly
+
+[Timer]
+OnCalendar=monthly
+Persistent=true
+
+[Install]
+WantedBy=timers.target