Block access to website!

I'm trying to block access to some websites from the server in our office, is that possible?!, i mean which service under Mac OS 10.5 can do this job!
thank you

It depends on your network architecture and you haven't provided sufficient information to answer the question directly. It isn't even clear if you mean you want to stop this machine from accessing the sites, or whether you want to use this machine to block access from other clients on the network.
I'll assume the latter for now, but please feel free to elaborate.
In general, your server can only block traffic if it's running a service that your clients depend on.
If your server is a file server, or a directory server, or even a web server, then you're out of luck because the clients don't depend on this server to get to the sites you want to block.
On the other hand, if the server is running as a gateway then you can block it in the firewall.
If the server is running as a DNS server you could block the traffic in DNS (return a bogus IP address for the sites you want to block.
If the server is running as a proxy you could configure the proxy server rules to block the sites.
So, as you can see, there are many ways it could work depending on your setup. Even if you're not setup appropriately right now, you could still do this if you're willing to reconfigure your network - for example if you opt to take the proxy server route you'd need to configure the clients to use the server as a proxy. Likewise, if you take the DNS route you'll need to configure the clients to use this server for DNS.

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  • Firefox/IE/Chrome can't access one website from several computers

    There is one website I cannot get onto from several computers if I try using Firefox / Ie or Chrome. All computers can access the site using AOL browser (and we connect to the internet through a router and AOL is our ISP). I can also access it via iphone and I know that there is no problem with the actual site.
    Actually we cannot access any site that we know of on that particular server - it is as though it has blocked access from our ip address but only when Firefox/Moxzilla or Chrome. But none of our computers have problems elsewhere on the internet it seems to be just that one (server/website).
    This started suddenly this a few days ago and is driving me mad.
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    Our settings on AOL/IE/Firefox for accessing the internet all say auto-detect proxy setting.
    I have asked the owner of the server to check at their end that we aren't on a blocked list - we aren't.
    I am not sure what to do next - any ideas welcome.

    This is the first time I have used this forum and I did put in the web address actually - I don't know why it didn't show. It is www.chardswimming.org.uk.
    I posted it in Firefox because that is the browser that I mostly use and normally find it to be great without problems - I am not necessarily saying it is a firefox problem and I actually thought someone would try and be helpful rather than try and pass the buck like people from other software companies would.

  • Can't access one website

    There is one website which I can't access.  Nothing odd about the site -- it's a client website that's full of photos I need to view & download.
    I can access the website if I plug directly to my Comcast modem.  It appears the AirPort (Extreme 802.11n) is being blocked by this website.
    I don't seem to have this problem with any other websites.
    How/what do I change on the AirPort so that this website will no block me?
    I'm on 10.6.8
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    SOLVED!!
    The website is Portuguese.  Here's what conspired:
    1) (from me) "Hello,  I need some very technical help (I apologize for the English).
    I am a graphic designer working on creating marketing materials for ____.  I am using your site to collect marvelous photos.
    Unfortunately, ________.com has blocked me.  I need someone to turn off this block.  I am not sure how this is done.
    The address that is blocked, is my MAC (Media Access Control) address, also known as an ethernet ID.
    That number is
    00:00:00:00:00:00
    Please let me know if you can help me, or if there is someone else I should contact."
    2) (from them) "Dear _____,
    Thank you for your e-mail.
    We already talked with a technician. He needs to know your IP. You can check it on this website - http://www.whatismyip.com"
    3) (from me, who didn't think the IP address would help, since the block was only on my Airport) "Thank you.  My ip address is 00.00.000.000
    The problem may be more specific to one device MAC address, which is 00:00:00:00:00:00"
    4) (from them) "Your ban has been lifted. You should be able to access now.
    You were automatically blocked on Fri Jul 20 19:08:41 2012 (PT time) because of 15 failed FTP login attempts in a short period of 5 minutes. Please make sure to save your password somewhere safe and don't retry failed attempts. If you misplace your password and can't access, you should contact us instead.
    May I also inform you that device MAC addresses can be blocked on local area networks (LAN). On the Internet (WAN, or Wide Area Network), we deal with gateways, which is your public IP."
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  • Can't access one website... so annoying!

    Hello, I'm new to this forum and I was just after some help with a problem I've been having for a month or so now.
    I work for a website and for a month now I've not been able to access that one particular website. Every other website is fine. I've tried everything I can think of, flushing/renewing the dns and putting chrome and ie on the exceptions list on windows firewall are two that I can remember doing. I've also restarted in safe mode and the website still doesn't work.
    I know several websites are featured on that websites server and I can't access them either. I also know for a fact that the website is running, when speaking to colleagues etc...
    I thought it might be something to do with my antivirus (norton 360) but I tried to access that website on my fathers computer and he has AVG, so not sure if it's anything to do with that.
    I would really appreciate it if someone could help me. The only thing I can think of now is it being a fault with the internet? I can't tell you how frustrating it is!!
    Thank you in advance 

    jamessmall wrote:
    I have previously tried to access the website on FireFox, IE and Chrome, and no luck
    Hi. Welcome to the forums.
    There can be a few reasons for this problem, some form of local blocking via a security program (in the distant past, a rogue hosts file entry can cause this, and may still affect some people).
    One of the easiest checks is to power cycle your router, i.e. disconnect the BB, remove all power including the plug from the wall, wait a few minutes and reconnect. This usually gets a new IP address (before and after can be checked by going to somewhere like http://www.whatismyip.com/). Try the site again.
    Sometimes an IP address can somehow become stale, no idea why - but maybe there is some bad router code in the various networks out there and are not able to reconcile the website (even a DNS lookup failure for that stale IP address).
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