Hi guys,
Set up a droplet having the private networking option enabled. My aim is to:
I tried both these iptables (flipped order between two options), to absolutely no avail:
:INPUT ACCEPT [3:180]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [255:30170]
-A FORWARD -i eth0 -j DROP
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
COMMIT
and
:INPUT ACCEPT [3:180]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [255:30170]
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A FORWARD -i eth0 -j DROP
COMMIT
Testing the changes this way:
Go on another droplet, and ssh using both of these:
ssh username@targetpublicip
and
ssh username@targetprivateip
In both cases, both keep working fine.
When I tried just this in the iptables:
iptables -I INPUT -i eth0 -j DROP
I couldn’t SSH using the private IP either.
I’m using the ams2 datacentre for both droplets.
Thanks and regards
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First clear the existing iptables rules by running these commands
After you clean you can view the rules with
Then run in terminal the following rules
allow loopback device, some software requires it
allow ssh connection
replace x.x.x.x with the droplet ip you want to allow connections with, this is for ipv4
Note: Save the iptables rules before restarting your droplet so they don’t get lost