Win a copy of Machine Learning for Business: Using Amazon SageMaker and JupyterE this week in the Jython/Python forum
or Object Design Style Guide in the Object-Oriented programming forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Bear Bibeault
  • Paul Clapham
  • Jeanne Boyarsky
  • Knute Snortum
Sheriffs:
  • Liutauras Vilda
  • Tim Cooke
  • Junilu Lacar
Saloon Keepers:
  • Ron McLeod
  • Stephan van Hulst
  • Tim Moores
  • Tim Holloway
  • Carey Brown
Bartenders:
  • Joe Ess
  • salvin francis
  • fred rosenberger

firewall for cable modem

 
Ranch Hand
Posts: 195
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
We just got a cable modem for our computer and was wondering what people would suggest for a firewall? Are there any good free firewalls that you can use, or should I buy something?
Thanks for the suggestions!
BRian
 
Ranch Hand
Posts: 317
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Try www.zonealarm.com
There is a free version of that available..worlks good
Faze
------------------
Faisal Dosani
B.Sc, AIT, SCJP
 
Ranch Hand
Posts: 4714
9
Scala Java
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
yes get zonealarm...im so glad someone told me about it
 
Ranch Hand
Posts: 108
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
What harm could possibly be done to your PC, if have cablemodem, and you don't have a firewall?
 
Randall Twede
Ranch Hand
Posts: 4714
9
Scala Java
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
mancu,
you could be on the wrong end of a trojan or virus like I am right now.. it is "fixed" but my system is still screwed up

what happened is I innocentlly downloaded a program and the person who compiled it had also set it up to run a trojan program when i clicked install. the program works fine and the trojan is now gone but the damage is done to my system. and so far i dont knoew how to fix it. the program i downloaded was cygwin which is a unix emulator and c compiler for windows but this asshole added a trojan to it. so it is not just IRC and wares sites where this can happen. I got the link to the binary from a reputable site
the firewall alerted me that a program i didnt know about was trying to acess the internet and thats how i found out i was infected
[This message has been edited by Randall Twede (edited August 08, 2001).]
 
Manku Thimma
Ranch Hand
Posts: 108
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Ah, so having a firewall could actually detect such trojans? Suppose I never download anything, but still keep my PC actively connected all day, can that be a security risk?
 
Randall Twede
Ranch Hand
Posts: 4714
9
Scala Java
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
yes but much less risk depending on system. if you use win95 or 98 or a unix it is less if you use winNT then the risk is more from unsolicited intrusions. the IIS server is bad too for that
my zone alarn firewall told me that an unknown program was trying to access the internet on port ("something" i forgot) it is a port that only the netbus trojan uses so i found out from the firewall the name of the trojan file and deleted it
[This message has been edited by Randall Twede (edited August 08, 2001).]
 
Ranch Hand
Posts: 1365
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator

Originally posted by Manku Thimma:
Ah, so having a firewall could actually detect such trojans? Suppose I never download anything, but still keep my PC actively connected all day, can that be a security risk?


If you are connected to the internet, you are at risk. One of the interesting things about firewalls is that most will let you see how many people try to connect to your computer. It is easy to figure out what operating system you run, and from there people just exploit security holes in the OS or services running on your computer (of course webservers and such, but also many database programs and some software you might not expect to network).
 
Randall Twede
Ranch Hand
Posts: 4714
9
Scala Java
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
that is basically what i meant by my last reply... win 95 and 98 have less holes than the new wins, and Apache and other servers are safer than IIS because these fools want to exploit win NT , win ME and 2000 people and the IIS server sucks
 
Randall Twede
Ranch Hand
Posts: 4714
9
Scala Java
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
mancu,
to answer your question, if you use win 95 0r 98 and apache server you have little to worry about unless you accidently download the wrong program and run it. they are targeting the others not us rebels
 
Brian Nice
Ranch Hand
Posts: 195
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Thanks for the help, I downloaded and installed ZoneAlarm. It is working great!
 
Ranch Hand
Posts: 320
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator

Originally posted by Randall Twede:

the firewall alerted me that a program i didnt know about was trying to acess the internet and thats how i found out i was infected


Uh
In case you didn't know, Cygwin is SUPPOSSED to connect to the Internet. When you download the file it runs an installer which then goes to each site on your list of 'programs to install' and gets the current version for you. (like Perl, sed, awk, less, etc etc)
Maybe you were safe all along?
I'm a huge cygwin user myself, but, at home I also run a Linux box (actually it's openBSD) using IP chains. This satisfies my need for a shell AND the firewall issue.
Hope this helps.
[This message has been edited by John Bateman (edited August 09, 2001).]
 
Manku Thimma
Ranch Hand
Posts: 108
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Thanks, Randall, David. I have Win 98; but still will consider getting a firewall. My previous cable modem service guy actually recommended not using a firewall, because those people sniffing around for a computer to connect might actually feel challenged when they encounter a firewall; and would get curious to see what's behind it.
 
Ranch Hand
Posts: 49
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I recently read a security whitepaper (sorry can't remember where it came from) that said the mean time before a system was attacked after being plugged in (read cable modem/DSL) turned on is around 15 - 20 minutes. Definetly get something like zonealarm. You also might consider a personal firewall/switch/router. I use one from Linksys which works great, and lets me have multiple PC's share my DSL line.
 
Robert Brunner
Ranch Hand
Posts: 49
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Forgot to mention, Linux boxes were actually attacked faster than Win machines. Redhat used to install some parts with low security by default
 
Randall Twede
Ranch Hand
Posts: 4714
9
Scala Java
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
john,
nah it was some other file trying to connect(forgot the name) and it was trying to do it on port 12345 which is only used by netbus trojan
 
John Bateman
Ranch Hand
Posts: 320
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator

Originally posted by Randall Twede:
john,
nah it was some other file trying to connect(forgot the name) and it was trying to do it on port 12345 which is only used by netbus trojan


Ah,
Yup, you got hit!!
Those @#$@#%@!!

 
Remember to always leap before you look. But always take the time to smell the tiny ads:
Sauce Labs - World's Largest Continuous Testing Cloud for Websites and Mobile Apps
https://coderanch.com/t/722574/Sauce-Labs-World-Largest-Continuous
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!