IP Filtering
Is there a way to filter out traffic to a page with IP addresses? I need to block all IP addresses except for one Class C group from using a bandwidth test on my server.
I have come close with Netscape, but I need it to work with all browsers.
Thanks,
Zimbabwe
mairving posted this at 02:15 — 6th March 2002.
They have: 2,256 posts
Joined: Feb 2001
Just do it using an .htaccess file like so:
<?php<Limit GET>
order deny,allow
allow from all
deny from IP Address
</Limit>
?>
That will work no matter what browser they are using.
Mark Irving
I have a mind like a steel trap; it is rusty and illegal in 47 states
zimbabwe posted this at 22:55 — 7th March 2002.
They have: 58 posts
Joined: May 2001
umm.. I have never used .htaccess files.. what do I need for them, and what are they?
zimbabwe posted this at 22:59 — 7th March 2002.
They have: 58 posts
Joined: May 2001
I am using a Windows NT server...I also have a Windows 2000 server.
Do I need a Linux/Unix server?
Suzanne posted this at 00:21 — 8th March 2002.
She has: 5,507 posts
Joined: Feb 2000
Moving this to Server-Side Scripting as you'll find the right answers there.
I believe there is an option for MS servers. You can also run Apache on an MS server?
zimbabwe posted this at 02:03 — 8th March 2002.
They have: 58 posts
Joined: May 2001
I managed to get the result that I wanted with PHP... while I have a post here, how do you set a range for an IP address in PHP?
For example, this is the scripting that I had to use to get my filter to work:
<?php
PHP
print \"Verifying Access Rights...Please Wait\";
$IPAllow = array(\"xxx.xxx.xxx.1\",\"xxx.xxx.xxx.2\",\"xxx.xxx.xxx.3\", ....... \"xxx.xxx.xxx.255\");
$IPAllowString = implode (\":\", $IPAllow);
$verify = getenv(\"REMOTE_ADDR\");
if (strstr($IPAllowString,$verify)) {
echo \"
<script>
<!--
nextpage='meter.php';
document.location.href=nextpage
// -->
</script>\";
} else {
echo \"
<script>
<!--
alert(\\"Sorry, only customers may use bandwidth test\\");
badpage='http://www.domain.com/wireless.htm';
document.location.href=badpage
// -->
</script>\";
}
?>
That seems like a waste of time to type out 255 addresses... Hopefully I don't have to add another group of IP's, but it would be nice to know how to set a range of 0-255 for the last octet of the ip addresses.
Thanks,
Zimbabwe
Peter J. Boettcher posted this at 13:51 — 8th March 2002.
They have: 812 posts
Joined: Feb 2000
Here's some ASP I made, maybe it will help:
UserIP = Request.ServerVariables("REMOTE_ADDR")BlockIP = "172.20.2,172.20.3,172.20.4"
FindDot = InStrRev(UserIP,".")
UserIP = Mid(UserIP,1,FindDot - 1)
IPArray = Split(BlockIP,",")
For x = LBound(IPArray) To UBound(IPArray)
If UserIP = IPArray(x) Then
'Put code here to handle bad ips
Response.Write "Your IP is in the block list"
End If
Next
So basically just enter the IPs you want to block in the BlockIP string separated by a ",", I didn't include the fourth segment of the IP since I assumed you wanted to block the whole range (0-255)
PJ | Are we there yet?
pjboettcher.com
zimbabwe posted this at 20:37 — 8th March 2002.
They have: 58 posts
Joined: May 2001
I want to block all IP addresses except for a certain group.
I don't know ASP that well (I am checking out asp101.com) so is there a way to allow a certain group of IP addresses while blocking all the rest? Would this work?
UserIP = Request.ServerVariables("REMOTE_ADDR")AllowIP = "172.20.1"
FindDot = InStrRev(UserIP,".")
UserIP = Mid(UserIP,1,FindDot - 1)
IPArray = Split(AllowIP,",")
For x = LBound(IPArray) To UBound(IPArray)
If UserIP = IPArray(x) Then
Response.Write "
<script>
<!--
nextpage='meter.php';
document.location.href=nextpage
// -->
</script>"
Else
Response.Write "<script>
alert(\"Only customers are allowed to use bandwidth test.\")
badpage='http://www.domain.com/wireless.htm'
document.location.href=badpage
</script>"
End If
Next
Peter J. Boettcher posted this at 20:55 — 8th March 2002.
They have: 812 posts
Joined: Feb 2000
Yeah that would work, I would make it simpler though, maybe like:
UserIP = Request.ServerVariables("REMOTE_ADDR")AllowIP = "172.20.1"
FindDot = InStrRev(UserIP,".")
UserIP = Mid(UserIP,1,FindDot - 1)
IPArray = Split(AllowIP,",")
For x = LBound(IPArray) To UBound(IPArray)
If UserIP = IPArray(x) Then Response.Redirect "meter.php"
Next
Response.Write "<script>
alert(\"Only customers are allowed to use bandwidth test.\");
badpage='http://www.domain.com/wireless.htm';
document.location.href=badpage;
</script>"
If you know you're only going to allow one group you don't need to use the array, but if you think you might need to add another group you should keep it.
PJ | Are we there yet?
pjboettcher.com
zimbabwe posted this at 21:01 — 8th March 2002.
They have: 58 posts
Joined: May 2001
I probably should leave it since we are planning on applying for another group of IP's.
Thanks for your help!
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