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Kindred
n00b
Joined: 27 Feb 2004
Posts: 9
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 Posted: Fri Aug 20, 2004 9:15 pm Post subject: command to list open ports? |
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| The old admin left so I don't know what some server applications are using for ports, so what is the command to see? |
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ElForesto
n00b
Joined: 26 Feb 2004
Posts: 26
Location: Salt Lake City, UT USA
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| Posted: Fri Aug 20, 2004 9:20 pm Post subject: |
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This will list things being listened for:
If that doesn't give you what you want, check the man page.  [/code] |
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hensan
l33t
Joined: 26 Jun 2003
Posts: 868
Location: Sweden
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| Posted: Fri Aug 20, 2004 9:25 pm Post subject: |
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| You can also try nmap. |
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beandog
Bodhisattva
Joined: 04 May 2003
Posts: 2072
Location: /usa/utah
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| Posted: Fri Aug 20, 2004 9:27 pm Post subject: |
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| hensan wrote: | | You can also try nmap. |
Yahp. nmap localhost
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kashani
Advocate
Joined: 02 Sep 2002
Posts: 2032
Location: San Francisco
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| Posted: Fri Aug 20, 2004 11:18 pm Post subject: |
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netstat -ptln is a bit more readable IMO.
kashani
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krolden
Apprentice
Joined: 28 May 2004
Posts: 293
Location: Belgium
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| Posted: Fri Aug 20, 2004 11:44 pm Post subject: |
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| sdibb wrote: | | hensan wrote: | | You can also try nmap. |
Yahp. nmap localhost |
Won't that give incorrect results?
If your IPtables are configured that all packets from lo interface are to be accepted, you will see all your packets get through.
Besides, I don't think nmap can handle localhost, at least the older versions couldn't scan when giving 127.0.0.1 as target IP.
Anyways, check this out. It might prove convenient.
http://www.linuxsecurity.com/docs/LDP/Security-Quickstart-HOWTO/appendix.html#NETSTAT |
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beandog
Bodhisattva
Joined: 04 May 2003
Posts: 2072
Location: /usa/utah
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| Posted: Sat Aug 21, 2004 3:45 am Post subject: |
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| Krolden wrote: | | sdibb wrote: | | hensan wrote: | | You can also try nmap. |
Yahp. nmap localhost |
Won't that give incorrect results?
If your IPtables are configured that all packets from lo interface are to be accepted, you will see all your packets get through.
Besides, I don't think nmap can handle localhost, at least the older versions couldn't scan when giving 127.0.0.1 as target IP.
Anyways, check this out. It might prove convenient.
http://www.linuxsecurity.com/docs/LDP/Security-Quickstart-HOWTO/appendix.html#NETSTAT |
Yes, you're right -- if you run it locally, it will display all the ports that are open that you locally can connect to, but not from the outside in. Still its a quick and dirty indication if you just want to know what's running.
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