Security Basics mailing list archives
RE: Identifying a computer
From: "Duston Sickler" <dustons () charter net>
Date: Wed, 3 Dec 2003 19:06:39 -0600
You may want to make sure that there is not a unsecured Wi-Fi access point on the network. You may have some one in the parking lot doing things with your bandwidth. (and you Internet facing IP) As far as how to gather information on the suspect IP address I suggest a sniffer to see what it is they are doing. You may be able to determine what O.S. they are using (among other things) my looking at the output. Best of luck, Duston Sickler CompTIA A+ Certified -----Original Message----- From: Cheetah [mailto:cheetahx () online no] Sent: Wednesday, December 03, 2003 9:38 AM To: security-basics () securityfocus com Subject: Identifying a computer Hello. I am helping the sysadmin on my local LAN to manage the network, etc. We have limited internet-bandwidth, and therefore it is necessary to make sure no-one is taking to much of the bandwidth, as others will not be able to use the internet connection. For the last 2 days, a new IP has appeared, and it is constantly using a lot of bandwidth. We have a linux-server running DHCP, DNS and the internet-connection. I have checked the dhcpd.leases file, but the IP isn't there. I have also tried to ping and scan this IP, but the computer is running a strong firewall, shows no open ports and doesn't even respond to pings. Is there any way I can get some information out of this computer without running around and asking everyone what their IP is? Tore --------------------------------------------------------------------------- ---------------------------------------------------------------------------- --------------------------------------------------------------------------- ----------------------------------------------------------------------------
Current thread:
- Identifying a computer, (continued)
- Identifying a computer Cheetah (Dec 03)
- Re: Identifying a computer Bryan Allen (Dec 03)
- RE: Identifying a computer Optrics Engineering - Shaun Sturby, MCSE (Dec 03)
- Re: Identifying a computer Ranjeet Shetye (Dec 03)
- Re: Identifying a computer ~Kevin DavisĀ³ (Dec 04)
- Re: Identifying a computer Ranjeet Shetye (Dec 05)
- Identifying a computer Cheetah (Dec 03)
- RE: Identifying a computer David Gillett (Dec 03)
- Re: Identifying a computer Tim Willard (Dec 03)
- RE: Identifying a computer Jason Balicki (Dec 04)
- Re: Identifying a computer Meritt James (Dec 05)
- RE: Identifying a computer Duston Sickler (Dec 04)
- Re: Identifying a computer Andy Cuff [Talisker] (Dec 04)
- Re: Identifying a computer David Glosser (Dec 19)
- Re: Identifying a computer Peter Wohlers (Dec 19)
- Re: Epithet Jimi Thompson (Dec 08)
- Re: Epithet Meritt James (Dec 08)
- Re: Epithet Jimi Thompson (Dec 11)