Add 2048 bit D-H groups for ssh

See https://weakdh.org/

Author: divergentdave

collect.sh

@@ -29,3 +29,4 @@ cp /usr/local/bin/flip.pl .
 sudo cat /etc/ddclient.conf | grep -v password > ddclient.conf
 cp /etc/dphys-swapfile .
 cp /etc/systemd/system/tor.service .
+cp /etc/ssh/moduli .