[chg] Private IP & fixedresolver python version fix

dnshook.sh

@@ -1,4 +1,4 @@
 #!/bin/bash
 
-python3 /usr/local/lib/python3.8/dist-packages/dnslib/fixedresolver.py -r "_acme-challenge.$CERTBOT_DOMAIN. 10 IN TXT \"$CERTBOT_VALIDATION\"" -a $1 &>/dev/null &disown
+python3 /usr/local/lib/python$(python3 -V | cut -d' ' -f 2 | cut -d. -f 1,2)/dist-packages/dnslib/fixedresolver.py -r "_acme-challenge.$CERTBOT_DOMAIN. 10 IN TXT \"$CERTBOT_VALIDATION\"" -a $1 &>/dev/null &disown
 sleep 5

install.sh

@@ -34,7 +34,7 @@ SRC_PATH="`dirname \"$0\"`"
 
 # Get public IP in case not running on AWS or Digitalocean.
 MYPUBLICIP=$(curl http://checkip.amazonaws.com/ -s)
-MYPRIVATEIP=$(curl http://checkip.amazonaws.com/ -s)
+MYPRIVATEIP=$(hostname -I | cut -d' ' -f 1) # It assumes that first network interface is the Internet one
 
 # Get IPs if running on AWS.
 curl http://169.254.169.254/latest -s --output /dev/null -f -m 1