[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [FW1] what is port scan ? our IT auditor found hole!!
>Hi.. > >1)My IT auditor told me she run a port scan product on the internet and scan >our firewall internet IP and found our firewall port 264, 265 are opened >Why?? why it is opened?? What is port scan and where to download? > >I found these port are as follows, what is the function of that?? Port scan usually means attempting a tcp connect to each 'port' on the firewall. It is also often over a range of IP addresses. As portscan tools go, I find nmap most useful (http://www.insecure.org/nmap) but watch out, because portscans can crash a firewall. (Yes, I've done it, scan out, connection table overflows, and 'boom') > >bgmp 264/tcp BGMP >bgmp 264/udp BGMP ># >Dave Thaler <[email protected]> >x-bone-ctl 265/tcp X-Bone CTL >x-bone-ctl 265/udp X-Bone CTL These may be the listed services, but that's largely irrelevant to the firewall. At a guess these will be some firewall control services since I know a number in the 250+ range are used. -- Ed Rolison System Administrator Phone: +44 (0) 1926 455303 http://www.byzantium.com Byzantium Solutions Ltd The information contained in this email is confidential and is intended for the recipient only. The views contained in this email are those of the author and not necessarily those of the company. If you have received this email in error, please notify us immediately by reply and then delete it from your system. Please do not copy it or use it for any purposes, or disclose its contents to any other person or store or copy this information in any medium. ================================================================================ To unsubscribe from this mailing list, please see the instructions at http://www.checkpoint.com/services/mailing.html ================================================================================
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