Results 1 to 5 of 5

Thread: What is a Firewall ?
      
   

  1. #1
    Join Date
    Nov 2005
    Posts
    171

    Default What is a Firewall ?

    Simply put it acts as a barrier between your computer and the internet. To protect you from crackers, hackers and malware.

    If your running DSL or a cable modem you should employ a firewall, as having a direct connection to the Internet can make you a target to attack.

    Firewalls can be hardware or software based. With firewalls you set up ACL's or Access Control lists to allow or deny traffic.

    There are three different ways a firewall can block traffic.

    1. Packet Filtering- Packets are analyzed against filters in the firewall rulesets. Firewalls will drop packets that are not allowed in the firewall rulesets.

    2. Proxy Service- Information from the Internet is grabbed by the firewall and delivered to the requesting service thru the proxy.

    3. Statefull packet inspection- looks up criteria against a database of trusted information. To see if the packet contains anything that would allow

    or deny it into the network.

    Firewalls are customizable allowing you to create your own rulesets you can block IP addresses, specific protocols such as Telnet, FTP, ICMP, UDP, SMTP and many others.

    Firewalls can be customized to block specific ports, or even keywords.

    There are many software firewalls availiable such as Tiny Firewall http://www.tinysoftware.com/home/tiny2?la=EN That is designed to keep hackers out of your network and block Spyware.

    Zone Labs makes ZoneAlarm I like it bcause it has a simple interface allowing home users to configure it easily. http://www.zonelabs.com/store/content/home.jsp

    For hardware firewalls there is:

    Cisco www.cisco.com There brand is called PIX firewall.

    From home users I like D-Link DI-604 this is a inexpensive firewall that works well. Best of all it fits into almost any budget.

    Linksys (now part of Cisco) offers a router/firewall that supports VPN and DMZ. www.linksys.com

    There are many hardware solutions including setting up a firewall on a *nix box. I like this the best as it gives you the firewall administrator the most control. I personally like OpenBSD for any security applications I would run with Unix, as it is secure. There have been very few exploits against this platform.

    Article By: Benjamin Hargis

    VodaHost

    Your Website People!
    1-302-283-3777 North America / International
    02036089024 / United Kingdom
    291916438 / Australia

    ------------------------

    Top 3 Best Sellers

    Web Hosting - Unlimited disk space & bandwidth.

    Reseller Hosting - Start your own web hosting business.

    Search Engine & Directory Submission - 300 directories + (Google,Yahoo,Bing)



  2. #2
    Join Date
    Jul 2006
    Location
    near Toronto
    Posts
    12

    Default Re: What is a Firewall ?

    Some firewalls may perhaps be used together and not others. I too like Zone Alarm, but wondered whether to use it with SP2 installed for XP. Would SP2 cause conflicts with other firewalls?

  3. #3
    Join Date
    Feb 2006
    Location
    LA HABRA, CA
    Posts
    1,104

    Default Re: What is a Firewall ?

    IS it my firewall? I have been unable to conect to FTP manager. my error messages are 331 user name ok and 530 authentication password not good. VH Help Desk says it's a firewall problem. after adding both BV and BV FTP to safe list and rebooting I still get same message. I am at a stand still (been here two days), if any one can give me any insite please respond.

  4. #4
    Join Date
    Sep 2006
    Posts
    57

    Default Re: What is a Firewall ?

    Quote Originally Posted by circuspet.com
    IS it my firewall? I have been unable to conect to FTP manager. my error messages are 331 user name ok and 530 authentication password not good. VH Help Desk says it's a firewall problem. after adding both BV and BV FTP to safe list and rebooting I still get same message. I am at a stand still (been here two days), if any one can give me any insite please respond.
    yes I think i can help you i had some problems with programs like kazaa and other p2p programs the problem is mostly from your Internet provider he is mostly using some programs like p2p programs and pc2pc...etc programs you should connect him man and i hope you Luke.

  5. #5
    Join Date
    Feb 2006
    Location
    LA HABRA, CA
    Posts
    1,104

    Default Re: What is a Firewall ?

    Spikey:

    The problem I was having was nothimg more than a Stupid User Error. when going to the FTP manager the password and user name were on automatic but I failed to notice the server must be selected from a menu.
    By not choosing a server from the menu the program defaulted to the first choice ( voda #1) which was not my server and trigering the password error. It was the help desk that suggested a fire wall problem.
    This simple problem took two days to figure out. Hope some one can profit from my error, at least a good laugh.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

     

Similar Threads

  1. Remote FTP Access?
    By charlwillia6 in forum General Support Issues
    Replies: 11
    Last Post: 12-01-2005, 02:31 PM
  2. OMG I think I may fail...ERROR 12029
    By reelezcharters in forum General Support Issues
    Replies: 2
    Last Post: 11-13-2005, 06:51 PM
  3. more publishing probs
    By earthworks in forum General Support Issues
    Replies: 1
    Last Post: 09-08-2005, 03:17 PM
  4. Firewall
    By Maddog in forum BlueVoda - General Issues
    Replies: 2
    Last Post: 08-14-2005, 12:23 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •