How secure am I with Linksys a router?

frostgiant

Senior member
Jun 19, 2000
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How secure is my computer when I'm running a Linksys Cable / DSL router? Since I am running NAT and no computer is on the internet directly, should I still run a firewall?
 

RaDragon

Diamond Member
May 23, 2000
4,123
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71
That Linksys Router has built in firewall properties therefore, you have some security there. Although most routers have firewall properties, they are not full-blown firewalls, and you can still purchase a separate machine to act as a firewall. Unless you have some top secret, ultra-confidential documents that cyberthieves will *really* want to break into (and they are aware that its sitting on your machine), then your Linksys Router's firewall properties are fine...

Ooof.. that was a long-winded sentence, don't you think? :D
 

Mday

Lifer
Oct 14, 1999
18,647
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I am good and dandy...

all secure here... sometimes I can't even get out myself :p (kidding, unless DSL is down, then :()
 

HD2GO

Senior member
Nov 2, 1999
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It's definitely NOT the most secure firewall but should do a good enough job for home users.
 

IsOs

Diamond Member
Oct 9, 1999
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I could be wrong, but I don't think that there's such thing as 100% secure. There are known exploits for just about any firewall/router combination. But you're probably 99% secure. The major key to a successful blockade of potential perpertuator is not to reveal the type of security you have.
 

b0red

Golden Member
Oct 9, 1999
1,241
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I'm running ZoneAlarm with Linksys Router. I use IRC, and under Shields UP! test, port 113(IDENT) shows up CLOSED. With ZoneAlarm, the port shows up STEALTH.
 

frostgiant

Senior member
Jun 19, 2000
258
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So without the router and with ZoneAlarm its stealth or with the router and ZoneAlarm its stealth?
 

Celstar

Platinum Member
Oct 16, 1999
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dont mean to pull up an old thread...

the router by itself is good enough. it is redundant to run zonealarm since the ports that zonealarm protects are not even visible outside the router unless you open those ports purposely.
 

bub

Senior member
Oct 9, 1999
239
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It may be a scam, but after installing a Linksys router, I went to the ShieldsUp test site. https://grc.com/x/ne.dll?bh0bkyd2

Here's the result:

Your Internet port 139 does not appear to exist! One or more ports on this system are operating in FULL STEALTH MODE! Standard Internet behavior requires port connection attempts to be answered with a success or refusal response. Therefore, only an attempt to connect to a nonexistent computer results in no response of either kind. But YOUR computer has DELIBERATELY CHOSEN NOT TO RESPOND (that's very cool!) which represents advanced computer and port stealthing capabilities. A machine configured in this fashion is well hardened to Internet NetBIOS attack and intrusion.

Unable to connect with NetBIOS to your computer. All attempts to get any information from your computer have FAILED. (This is very uncommon for a Windows networking-based PC.) Relative to vulnerabilities from Windows networking, this computer appears to be VERY SECURE since it is NOT exposing ANY of its internal NetBIOS networking protocol over the Internet.
 

Celstar

Platinum Member
Oct 16, 1999
2,092
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whats the definition of a scam? sounds like something you did to your own computer network.
 

Yoshi

Golden Member
Nov 6, 1999
1,215
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For personal use the firewall built into the Linksys router will work fine. If you want to test your firewall check out this site:

http://grc.com/x/ne.dll?bh0bkyd2

If you would also like to try a software firewall, which in my opinion is not needed when using the Linksys, get ZoneAlarm. Absolutely free for private users and is very effective.
 

bub

Senior member
Oct 9, 1999
239
0
71
Sorry CELSTAR. Sometimes I don't make sense. All I did was install the Linksys and then goto the ShieldsUP site to check my security. It's just hard for me to believe that the Linksys would be that hard to penetrate by Kevin Mitnick.
 

Zak

Senior member
Oct 12, 1999
653
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Of course, it simply has these ports closed, 21, 139, etc. I probed the ports on my NT box connected to the Linksys router using port sniffing utility, Socket Sifter, running on a Mac laptop and these ports did not exist. Once I've set the router to forward these ports to the NT box, the utility was able to penetrate them.

The guy who runs Shields Up (Gibson Research) is Steve Gibson not Mitnick I believe, and this site is legit, not a scam.

Zak