RE: Squid probes ?

1999-10-08 Thread Randall, Mark
Are you running a sniffer, or using some other method to examine the packets themselves? I would check the variations in source IP with the TTL value. All those different sources are very unlikely to be the exact same number of hops away. -Original Message- From: Bill Fox

RE: Squid probes

1999-10-08 Thread spiff
most probably this is a prog called "proxy hunter" from Solar Wind. certain people do not believe that all the internet should be availlable, proxy hunter provides a way out. On Thu, 7 Oct 1999, Joseph J. Volk wrote: Bill, Here are a few tid bits I've picked up concerning this probe.

RE: ARP

1999-10-08 Thread Ben Nagy
Suchitra, If you're configuring NAT on a Cisco router, it will take care of most of the ARP related stuff for you. Just to recap: ARP (Address Resolution Protocol or whatever) is used to translate IP addresses into Ethernet addresses. It's really only of interest once the stuff gets to the LAN

Re: Squid probes

1999-10-08 Thread Bill Fox
Hmmm. Good tidbits. Anonymous surfing sounds like a logical suspect. One of your attached emails mentioned "Proxy Hunter", and I believe SANS mentions something possibly called "Zero Ring", or such. One thing for sure, *they* are wasting a bit of the collective bandwidth with all this constant

Re: Squid probes ?

1999-10-08 Thread Bill Fox
Underway. I don't currently have a sniffer loaded on the firewall, but plan on installing ipgrab tcpdump this weekend, if all goes well. I have pinged tracerouted some of the sources... they *weren't * equal hops away. I'm sure others on the list have spent more time seeking out the sources

Re: Squid probes ?

1999-10-08 Thread Joshua Chamas
They are full network probes usually, that scan my entire subnet, so yes they are abuses. --Joshua Jeff Younker wrote: Are you sure it's abuse and not some web conference application, or some web page generated (such as a stock reporting page) that's trying to tunnel information via

Re: Squid probes

1999-10-08 Thread Bill Fox
"provides a way out" Well, hi there "Spiff"! We know which boat you're in now. Enjoying surfing the firewalls listserv?? Been probing any juicy sites lately, hummm?? g - Original Message - From: spiff [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Friday, October 08, 1999

Re: Firewall names

1999-10-08 Thread Frederick M Avolio
At 01:28 AM 10/7/99 -0400, Greg DeRuyter wrote: was hoping I could get some names of various types of firewalls both hardware and software so that I could do research on them. Check out the firewall information at CSI (http://www.gocsi.com/) and ICSA (http://www.icsa.net/). Fred Avolio

RE: SQUID

1999-10-08 Thread Kevin Johnston
I am aware of the recent flood of SQUID.Has anyone experienced port scans for port 53 and 1080? I have a cable modem at home (I know, I know, bad, bad...). ABout every Saturday night between 6pm and 9pm I get port scanned and NukeNabber knocks them off. However, the fact they are scanning

RE: Squid probes ?

1999-10-08 Thread Mullen, Patrick
From the new SANS newsbits -- In a fabulous example of networked community cooperation, more than 300 security practitioners isolated the behavior of the Internet-wide RingZero Trojan proxy attack, found the Trojan, created defenses, and, as a result, the Russian site that was using it to

Re: Squid probes

1999-10-08 Thread James Strompolis
Here's the latest on the Squid probe. It's been identified, isolated and stopped for now. From the latest SANS newsletter: In a fabulous example of networked community cooperation, more than 300 security practitioners isolated the behavior of the Internet-wide RingZero Trojan proxy attack,

Re: RE: SQUID

1999-10-08 Thread Quentin Antrim
I'm sorry to ask a possibly obvious question, but what is SQUID? Thanks. Quentin Antrim City of Fort Collins "Kevin Johnston" [EMAIL PROTECTED] 10/08 6:21 AM I am aware of the recent flood of SQUID.Has anyone experienced port scans for port 53 and 1080? I have a cable modem at home (I

Online radio and other services

1999-10-08 Thread Vosburgh, Brian P, CTR, WHS/REF
I'm now the most unpopular person in the building blocking AIM, Realplayer, Broadcast.com and other things along this route. The problem is is that for every service I block two more show up. Does anyone know of a listing of these services? A list of the port numbers they use would be great

Securing FTP Server

1999-10-08 Thread Joel Cespedes
I'm assigned to implement an FTP server which customers/ clients will use to upload and download data in a secure manner. The number of clients is approx. 100. Here's my configuration: http: Apache 1.3.4 OS: Unix Solaris 2.7 Firewall: Sonicwall with DMZ The FTP server will be located at

RE: RE: SQUID

1999-10-08 Thread Stetser, Dan
Superconducting QUantum Interference Device Not. Seriously, it's a caching proxy server for *nix: http://squid.nlanr.net/ -Original Message- I'm sorry to ask a possibly obvious question, but what is SQUID? Thanks. Quentin Antrim City of Fort Collins - [To unsubscribe, send

Re: Online radio and other services

1999-10-08 Thread Jim Littlefield
On Fri, Oct 08, 1999 at 02:08:11PM -0400, Vosburgh, Brian P, CTR, WHS/REF wrote: I'm now the most unpopular person in the building blocking AIM, Realplayer, Broadcast.com and other things along this route. The problem is is that for every service I block two more show up. Does anyone know

RE: Online radio and other services

1999-10-08 Thread David Shackelford
You mention that for every service you _block_, two more show up. Shouldn't you be sitting back and making your users make a case for business need vs. security risk, and then _opening_ ports for their traffic, rather than running around blocking ports you don't want them to use? Here's the main

Re: SQUID

1999-10-08 Thread Quentin Antrim
Thanks very much to those with the courtesy to answer my question politely. I'll post one of the answers here for those others who do not know what SQUID is. Quentin Emanuel Protopsaltis [EMAIL PROTECTED] 10/08 1:13 PM http://www.squid-cache.org/ a full-featured Web proxy cache designed to

Re: Online radio and other services

1999-10-08 Thread Ryan Russell
It's a little bit different for these types of toys. Many of them work across HTTP, and particular websites or URLs have to be blocked. I doubt many of us could get away with blocking access to all websites, except for the approved ones. It's akin to the porno site problem.

RE: SQUID

1999-10-08 Thread Ron DuFresne
those are connections due to IRC searching to see if you are also running a wingate. You might also see them hit port 1090. Your logs should point out that the originators are from the irc sites you and your users are playing on. Thanks, Ron DuFresne On Fri, 8 Oct 1999, Kevin Johnston

Re: Free Firewall Software for Linux OS

1999-10-08 Thread Bernd Eckenfels
On Thu, Oct 07, 1999 at 10:06:43AM +0200, Rafi Sadowsky wrote: try checking http://www.inka.de/sites/lina/freefire-l/tools.html thanks Rafi, you can now also use http://www.freefire.org. The german start page is accesable from www.freefire.de and the database backend and new layout will

Re: Squid probes (Apology to spiff)

1999-10-08 Thread Bill Fox
Would like to publicly apologize to spiff for that totally unwarranted comment I tossed onto the list while bleary-eyed and irrational. It was admittedly unprofessional and infantile of me to do that. I know from past posts that he ISN'T what I insinuated. Sorry, spiff!! --Bill -

The CVE list

1999-10-08 Thread Bill Fox
FYI to the list: The 'Common Vulnerabilities and Exposure" (CVE) list has recently been put online by MITRE Corporation. The URL is: http://cve.mitre.org/ . --Bill - [To unsubscribe, send mail to [EMAIL PROTECTED] with "unsubscribe firewalls" in the body of the message.]

Re: Online radio and other services

1999-10-08 Thread Brian Steele
We block all sites except for approved ones. Moving to this security policy after allowing unlimited access is a bit like trying to stuff the genie back into the bottle after you've let him out :-). Brian Steele - Original Message - From: Ryan Russell [EMAIL PROTECTED] To: Jim