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From: gufus on 10 Apr 2010 15:50 Hello, FromTheRafters! You wrote on Thu, 8 Apr 2010 20:36:05 -0400: FL>> Good question, one that works, and... and.... | | Can you tell me, in your own words, what a firewall does when it "works, | and... and...."? | That's /not/ a easy answer. :-) -- With best regards, gufus. E-mail: stop.nospam.gbbsg(a)shaw.ca
From: FromTheRafters on 10 Apr 2010 18:39 "gufus" <stop.nospam.gbbsg(a)shaw.ca> wrote in message news:rE4wn.28402$iL1.6978(a)newsfe24.iad... > Hello, FromTheRafters! > > You wrote on Thu, 8 Apr 2010 20:36:05 -0400: > > FL>> Good question, one that works, and... and.... > | > | Can you tell me, in your own words, what a firewall does when it > "works, > | and... and...."? > | > That's /not/ a easy answer. :-) I appreciate that... ....take your time... :o)
From: gufus on 10 Apr 2010 19:10 Hello, FromTheRafters! You wrote on Sat, 10 Apr 2010 18:39:26 -0400: | | I appreciate that... | | ...take your time... | Some things to consider... egads! Protocols: TCP UDP IP ICMP SHTTP HTTP POP POP3 SMPT IPv4 IPv6 port range 1-1056 | -- With best regards, gufus. E-mail: stop.nospam.gbbsg(a)shaw.ca
From: gufus on 10 Apr 2010 19:31 Hello, FromTheRafters! You wrote on Sat, 10 Apr 2010 18:39:26 -0400: | I appreciate that... | | ...take your time... | BTY.... check out: https://www.grc.com/x/ne.dll?bh0bkyd2 | -- With best regards, gufus. E-mail: stop.nospam.gbbsg(a)shaw.ca
From: FromTheRafters on 10 Apr 2010 21:02
"gufus" <stop.nospam.gbbsg(a)shaw.ca> wrote in message news:2z7wn.28791$vC3.27910(a)newsfe04.iad... > Hello, FromTheRafters! > > You wrote on Sat, 10 Apr 2010 18:39:26 -0400: > > | > | I appreciate that... > | > | ...take your time... > | > > Some things to consider... egads! > Protocols: > TCP > UDP > IP > ICMP > SHTTP > HTTP > POP > POP3 > SMPT > IPv4 > IPv6 > > port range 1-1056 So, you are considering a dedicated device running protocol filtering as well as NAT and SPI? Maybe this would be of interest? http://www.vicomsoft.com/knowledge/reference/firewalls1.html Once you have a dedicated device (computer?) you can even traverse OSI layers and, for example, render the contents of POP3 e-mail and scan an attachment for viruses. This increases overhead on the device, but won't slow down the end user's machine. |