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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: UDP port 137 Question
On Tue, 6 Jan 1998, C. Jon Larsen wrote: > Is there any *valid* reason to see UDP traffic directed at a unix box's > port 137 coming from IP sources across the internet ? The unix servers in > question are most definitely *not* running samba, and there is absolutely > no NT anywhere on this customer's network (that is seeing the incoming UDP > traffic directed at an IP destination address on port 137). (A couple > of 95 boxes scattered across an Ethernet comprise the Micro$oft part of > the network). None of the 95 boxen are running any file or print serving > (sharing) resources. [stuff cut] Hi Jon. If memory serves, Netbios nameservices are generally only on the same segment unless you have an NT/Samba server somewhere... As it is, it should *NOT* be directed at your Unix boxes and definately not coming across the Internet. My guess is that someone may be attempting a bad OOB data attack on port 137 thinking that your Unix box is some type of PC. Mel Melody Lynn Yoon [email protected] | Graduate - '97 MSF Senior SA - Taos Mountain Software, Santa Clara, CA | NRA Member -- I do not accept commercial, unsolicited email -- http://www.best.com/~melodyy/spam.policy.html
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