Can someone give me a clue for this one please ?
I’ve tried the following commands none have given me the correct answer;
netstat -tunleep4 | grep -v “127.0.0”
ss -l -4 | grep -v “127.0.0” | grep “LISTEN” | wc -l
@Su8Z3r0 said:
Can someone give me a clue for this one please ?
I’ve tried the following commands none have given me the correct answer;
netstat -tunleep4 | grep -v “127.0.0”
ss -l -4 | grep -v “127.0.0” | grep “LISTEN” | wc -l
So, I’d suggest thinking through what you are trying to do.
When you run netstat, you want everything that is listening, why are you excluding references to localhost?
Also I’d double-check the switches you are using with netstat. I find -ano is quite a useful one for general use.
Lastly, make sure you are running this on the target system, not your system.
did u get answer ?
I’m wondering about this as well, because every combination I am trying, the answer is still wrong with the output. I’ve tried netstat -luntp | grep “LISTEN” | wc -l , nmap localhost -p 1-65535 | wc -l, ss -l -4 | grep “LISTEN” | wc -l, but all the output that is returned is still apparently the wrong answer.
ss -l -4 | grep -v “127.0.0” | grep “LISTEN” | wc -l
ss -l -4 | grep -v “127.0.0” | grep “LISTEN” | wc -l
i’m not sure why but it didn’t look like it let me post the “slashes”
grep -v “127slash.0slash.0”
I find the Question to be a bit misleading given it mentions (Not on localhost and IPv4 only)
to get the correct answer you have to exclude grep -v “127.0.0”
ah! what was confusing me was the statement “Not on localhost and IPv4 only”. I was interpreting this as "Not only limited to localhost and IPv4 " so i was thinking… -not only limited to localhost (as in include EVERYTHING - including localhost) -not only limited to IPv4 (as in include IPv4 and IPv6) I was sort of trying to get to opposite to the required answer. At least got the LISTENING part correct 
If anyone has any issues try this, as you want what is listening on ipv4 only (0.0.0.0) which forces the daemon to listen on ipv4 only.
netstat -luntp | grep “0.0.0.0” | grep -v “127.0.0” | grep “LISTEN” | wc -l