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Thread: Firewalls

  1. #11
    The Muffin Man
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    Default

    The fact of that matter is, you DO need a firewall. Here are some reasons:

    1) You may have spyware on your computer, which slows down
    your internet connection, especially those with dialup

    2) Some hackers litterally scan the internet, searching for vonerable computers to break into and destroy...or use for a DDOS attack on another
    server.

    3) Your computer may contain infomation like name/address/phone# that
    people are very intrested in for the purpose of identity theft.

    4) You might acctually have something important in your computer
    like a companies list of stock reports or...something.

    So there. I have a firewall for reasons 1,2 and 3. By the way, my firewall
    is ZoneAlarm Pro. The one you pay for is a lot better than the free one.

  2. #12
    icemanx
    Guest

    Default

    Guys remember now microcrap err soft do not take hackers to court no is because if they break in they HIRE them to work for them so then that they stay Safer for later on when someone else tries to hack into microsoft

    its been like that for ages

    so unless you want agrovation of the firwall I wouldnt bother just use a good antivirus and trojan remover


    have a nice day

    catch me on Efnet - #cracks and #serialz

  3. #13
    Release Candiate 1
    Join Date
    Apr 2003
    Location
    Moscow, Russia
    Posts
    66

    Default

    :huh:
    This post intreged me, I read the responses to the post and watch the flow in the answers. You all together have the right ideas and are on the right track, No a fire wall is not necessary? That counts on what you do on the computer and if you leave it online all the time. a fire wall is a short term protection anyone who has any abilities to hack will get in. A firewall allows you to safely work your computer on a net and give you advantage.
    Nothing is safe on your computer, if you leave it on line. I had a freind who always left msn on line at all times, 24 hours a day. He never thought that would be a problem! Never believe that some one will not find that you are on line 24 hours aday. He learned the hard way. Me had firewalls and was assuming that he was safe.
    Dos was mentioned and I still feel that many of you do not understand that you attack Dos you attack the whole computer. Your basics for the commands of your computer are Dos. That said, you will find that someone who attacks Dos, knows that he or she can affect your computer come and go as pleases and 99% of the time you will never know it. If i was to look into your computer i would be only interested in what version of Dos you run. I would only pull your dirctory and find out what you had, I would find your passwords, i would find your back doors. If you were encrypted i would decrypt. every pass word you have in your system is there. for me to find. I have a saying," You can shut the front door,lock it and dead bolt it. If you do not do the same to the back door I will come in. If you bolt the back door I will come in the side door. If you got the doors bolted securly then I have "windows" to open and enter. I have a roof and i have a basement. Do not tell me I can not find away in.
    If you have somthing of importance I will break the lock, If you are my play ground Then I will be there when you are not and maybe when you are. I can play in Dos while you are surfing and you will never know.
    Dos is the Heart, windows is the covering, like love, affect the heart, you will either smile or frown.
    Use your protection, But remember that I can get around anything you have because you left me the KEY.

  4. #14
    Fishbait
    Guest

    Default

    You definately do need a firewall. Most machines that get hacked are not to destroy or steal data. PC's are mostly hacked to use as a warez site. If I drop an ftp server onto your machine, put it under the recycle bin with a /com directory early in the path, you probably will not even know it is there. You also won't be able to remove it without formating unless you know the complete path name to the server (which you won't find unless the hacker gets sloppy and leaves a log file exposed). The best free hardware firewall is Ipcop. it will install on a 486. I have installed it for a few companies on P90's. Once installed, you can remove the keyboard, mouse, cd, floppy and monitor and administer it from another PC. It can be used with dialup, isdn dsl or cable. There is lots of free support in forums available (as with most Linux based products). You can download it from http://ipcop.org/cgi-bin/twiki/view/IPCop/WebHome. And, as I said, it is free.

  5. #15
    Super Moderator
    Join Date
    May 2003
    Posts
    3,496

    Default

    Originally posted by peppycomputer@May 28 2003, 09:19 PM

    Dos was mentioned and I still feel that many of you do not understand that you attack Dos you attack the whole computer. Your basics for the commands of your computer are Dos. That said, you will find that someone who attacks Dos, knows that he or she can affect your computer come and go as pleases and 99% of the time you will never know it. If i was to look into your computer i would be only interested in what version of Dos you run. I would only pull your dirctory and find out what you had, I would find your passwords,
    thats not what they were meaning when they wrote DOS, which means Disk Operating system, ie Dr. DOS, Caldera DOS, MS DOS, PC DOS, FreeDOS, OPEN DOS, TandyDOS,
    what they are referring to is DOS - Denial of Service.
    DDOS - Distributed Denial of Service.

    there is too many letter meanings for the same things in Computing!
    it can be comfusing.

    pertaining to firewalls, I am using Frazierwall.

    one can easily build one. which I have, out of an old 486, running a Pentium Overdrive - 82Mhz, 20 megs RAM, no Hard disk, only a 1.44Mb Floppy Drive, 2 Nics. and a write protected (plastic tab protection) floppy.

    it also can do DMZ if needed for web servers, mail servers, whatever ya run on your DMZ.
    and there are many others that run from a CD-R. and can provide VPN and much more.

    buy an old comp from a comp show and turn in into your firewall, router.
    Under a heavy load on my Firewall (82Mhz), which is dowloading at 2.5kbps on my connection, the load on my firewall is only 0.22%, thats not even a full 1%, so dont think you cant use old equpiment for a multipurpose, multi-user firewall.

  6. #16
    The_Muffin_Man
    Guest

    Default

    Okay, it is established. If you do not use a firewall or use a flawed firewall (such as WinXP firewall or BlackICE), then you are risking the data on your computer. The more you are online, the greater the risk too. Now, when you go shopping for a firewall, what should you get? Well, personally, I would get a hardware firewall, software firewall and an ANTIVIRUS PROGRAM, ensuring maximum protection.


    Most routers of today use Stateful Packet Inspection to give hardware firewall security. This gives the protection that most users will be satisfied with, but they are not as secure as software firewalls. Someone can still get in will some more effort, and let us not forget the danger of trojans and spyware which will not be stoped by a router. That is where a good software firewall like ZoneAlarm Pro or Sysgate comes in. They add a final layer of protection in firewalls.

    But wait! Software firewalls can be defeated too by a virus or trojan, because they are on the hard drive. So, you need an antivirus program (or a lot of selectivity in downloads) to prevent against that.


    ------------------------------------------------------------------------------------------------
    Now here is where I bash M$ a little...
    ------------------------------------------------------------------------------------------------

    Now doesn't that just plain suck? Having to buy a software firewall, hardware firewall and antivirus program for maximum protection? Yes it does. But...this really only applies to Windows Users. Thats right, use a mac, get your chances of being hacked/recieving spyware reduced 80%. And they say Windows is cheeper. Don't believe me? Most general hack attempts on home users are an attempt on NetBIOS...that is Windows Networking. Oh, and is Xupiter compatible with Mac OS? Didn't think so...


    *I have never used IPCop but it seems to be for linux machines too. Fishbait said that is is a hardware firewall, but, you can download it? Okay...

  7. #17
    Super Moderator
    Join Date
    May 2003
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    3,496

    Default

    Ip cop, can be downloaded, and it is either burnt to a CD-r or run on a dedicated machine.
    if it runs on a CD-r, then it would be the similar to a hardware firewall.
    in the sense that the config files cant be modified. you might be able to get around it, but a person would then only have to reboot the system.
    since you can not write to the CD-r once it has been burnt, it would not permit anyone to install a trojan. if some did manage to "install" it, it can easily be eliminated with a reboot of the system, since if someone DID plant a trojan, it would only exist in RAM, it could not be placed onto the CD-R.
    and updating a system is simple. just burn a new CD, reboot the firewall. and all ready to go.
    sure it wont be exactly the same as a hardware IC, EEPROM programed chip Firewal, etc. etcl. but will cost much less.
    and since your OS does not exist on the same IP address as the firewall. which the firewall would be using a reachable IP adress. and the OS on an unreachable IP address, it does add some more protection by being on an ip address of 192.168.x.x or 10.x.x.x.
    which is a much better step up from a software firewall run on the same system as the OS.
    and can be built by anyone.

    yea, only Windows users have a Virus problem, dont see many virii for *Bsd's, Linux, Solaris, BeOS, QNX., Plan9, Inferno OS.

  8. #18
    The_Muffin_Man
    Guest

    Default

    I have read some reviews on IPCop and it seems to be a very good program. However, it is not a hardware firewall. Just because you put it on a CD-R doesn't make it a hardware firewall and just because it is hard to delete doesn't make it a hardware firewall either. There is no such thing as a piece of hardware that you can download. yeah, so it is good, but stop calling it a hardware firewall now.

  9. #19
    Super Moderator
    Join Date
    May 2003
    Posts
    3,496

    Default

    I said performs similar, not is.
    but besides that. a question about Hardware firewalls

    How does a hardware firewall work?
    does it use silicon chips, Diodes, resisters, triacs, zeners, SCRs, ICs, caps, tansistors etc, to do its filtering?
    which would be Electronic materials, (hardware)

    or does it use an EEPROM, RAM, PRAM, which permit Flash upgrades, like a MB's BIOS?
    which would be Software programmable. (software)

    Since I cant find any schematics online to see PCBs of a firewall, i can only guess it will use some sort of programmable chip. which is Software that programs the chip. the same goes for Embedded appliances, they are hardware, but they rely on software to be programmed into a chip. such as my Visara MTX 1783 thinclient, it has an embedded OS; QNX, on a chip. no matter what it is still software running the hardware appliance.

    an example of a real Hardware device would be something like an oscilloscope, which generally are made from electronic parts, and then there exists Software which can turn a PC into a oscilloscope.

    or a hardware CD player, compared to a software based player.

    would i upgrade the firewall by soldering in new coponents, or download a flash upgrade?

    last time I "upgraded" my AOR2700 to permit voice recording i installed a chip.
    to eliminate birdys i had to solder higher ohm resistors, new caps, not install new software.

    since I don't know. amd I am asking for a example of a Firewall built without programmable (software) chips. and one built with only diodes, resistors, etc filtering.

  10. #20
    The_Muffin_Man
    Guest

    Default

    http://www.esoft.com/?source=overture

    ^^^Theres your hardware firewall, with other good stuff as well


 

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