Just a quick question. Is there an equivalent command in FreeBSD for the linux command netstat -ntulp
I want to view which TCP and UDP ports are open on my system.

Linux netstat has several flags not on other *Nixes.

You can probably get what you're looking for with the "-t, -u" flags by doing the following:

The -p flag is unique to Linux so far as I know. To associate processes with ports you can use lsof:

lsof is a great utility that has many other uses. If you were looking for a certain port for example you could just do:

lsof -i : port

OR for a certain server:

lsof -i @server:

Or a certain port to a certain server:

lsof -i @server: port

And those are only some of the things you can do with -i, lsof has many many other uses.

Thanks, this is what I was looking for

netstat -an |egrep "^tcp|^udp"

A more direct way would be something like:

(check the FBSD manual page for netstat)

One might assume that with over 2000 posts I either already knew to check man pages OR had at least been admonished to do some in one of those earlier threads.

In point of fact I had checked the man page. The OP didn't give his version of FreeBSD and on the 4.9 system I looked at it didn't have the options he was using.

The fact that I specifically mentioned "-p" would have been a clue that it didn't work the way it does on Linux though I'll admit I missed the fact that it is there and means "protocol" rather than "program" as it does on Linux. My comments about lsof were to address the lack of a "program" option.

On that FBSD 4.9 system running your command gave:
netstat -a -f inet -p tcp,udp
netstat: tcp,udp: unknown or uninstrumented protocol

Running your line with only tcp or only udp after -p gives only one of the two protocols the OP was looking for whereas the the egrep finds both.

You know what? This is not about you. I tried chipping in, god forbid I offend a Senior Member (WAW) in the process. And I wasn't telling *YOU* to check the manual page.

My assumption, perhaps, flawed is that before "chipping in" you would have read all the posts in the thread.

Anyway - sorry for the tone of my post - yours just hit me wrong. As indicated in my reply I did have to re-examine one thing I wrote based on what you wrote.

No problems. I just remember when I was using FBSD I was doing something similar to your solution because I was too lazy to read the `netstat` manual page (I'm not implying *you* are lazy, as your method is "portable" across various releases). I do not currently have access to a BSD system so I had to search for an online FBSD man page repository to refresh my memory about the flags. I wasn't sure how to print *both* tcp and udp, the "-p tcp,udp" mode was an assumption. Surely "-p tcp" works and "-p udp" works but how you'd get both was what I had trouble with. So there were two reasons I was suggesting the OP to check the netstat man page: one, it's always good to read these documents, 2nd: he/she'd be able to "correct" my reply in case it was erroneous.

Yes. Another easy way to get this information is with sockstat.

if you're only interested in IPv4:

It's a he

but thanks for all your answers. I appreciate it