Thread: Newbie needs advice on Netstat and UFW

hi everybody
introduce myself first post on forum , new linux. have installed ubuntu 11.10 quite like, however......i ask questions netstat , ufw.
first of have set ufw recommended links forum i.e. incoming deny , strict out going policies. after using grc.com shields respond ping.....how permanently solve ping issue? if run netstat there seems awful lot of listening , connected sockets.....is ok?. possible updates change ufw settings without knowledge?

many thanks

posted mr mercury

hi everybody
introduce myself first post on forum , new linux. have installed ubuntu 11.10 quite like, however......i ask questions netstat , ufw.
first of have set ufw recommended links forum i.e. incoming deny , strict out going policies. after using grc.com shields respond ping.....how permanently solve ping issue? if run netstat there seems awful lot of listening , connected sockets.....is ok?. possible updates change ufw settings without knowledge?

many thanks

yes possible updates change ufw settings, if you're updating ubuntu repositories shouldn't. on same coin though, should reading change notes , not blindly updating.

far disabling icmp echo responses ufw here how it, far know need edit rules manually, wrong straightforward way know it.

need edit /etc/ufw/before.rules would.

code:

gksudo gedit /etc/ufw/before.rules

or

code:

sudo nano /etc/ufw/before.rules

then need change following line

code:

-a ufw-before-input -p icmp --icmp-type echo-request -j accept

to

code:

-a ufw-before-input -p icmp --icmp-type echo-request -j drop

afterwards save file , restart ufw

code:

sudo ufw disable && sudo ufw enable

hope helps.

Forum The Ubuntu Forum Community Ubuntu Specialised Support Security [ubuntu] Newbie needs advice on Netstat and UFW

Ubuntu