PHP guru (socket vs firewalls question) - GoFuckYourself.com

qw12er · 03-09-2007, 07:13 PM

I have 2 scripts.

The first one will be on my server and will be listening for incomming socket connections.

The second one, will be a client distributed on multiple server (which I don't know the servers config.).

My question is will the firewalls on my clients server block the connection attemp with php fsockopen() ?

Thanks.

webgeek · 03-09-2007, 07:16 PM

no.
that doesn't depend on that.
fsockopen is no different than a regular socket.

BigBen · 03-09-2007, 07:18 PM

Depends on the firewall config. What port is your script listening on?

qw12er · 03-09-2007, 07:42 PM

12345 right now ... but aren't all unused ports blocked by default ? Dedicated servers will be able to open this port ... but I guess webmasters on virtual servers will find it more difficult to open this port...

BigBen · 03-09-2007, 07:48 PM

Quote:

Originally Posted by qw12er

12345 right now ... but aren't all unused ports blocked by default ? Dedicated servers will be able to open this port ... but I guess webmasters on virtual servers will find it more difficult to open this port...

It should work fine for most of the clients as many aren't doing egress filtering, or any filtering for that matter, but others with proper rulesets will have to allow the traffic out.

qw12er · 03-09-2007, 07:59 PM

I though a high percentage of servers would be properly proteced by firewalls.

naitirps · 03-09-2007, 08:06 PM

if your controlling whats listening on that socket, do what you please ;-) Add auth codes and code in your ips or domain lists for auth. Your own type of firewall, just on socket level. :P

qw12er · 03-10-2007, 10:19 AM

Quote:

Originally Posted by naitirps

if your controlling whats listening on that socket, do what you please ;-) Add auth codes and code in your ips or domain lists for auth. Your own type of firewall, just on socket level. :P

The server end isn't the problem ... I'm wondering if firewall will block outgoing infos when the client connects.

03-09-2007, 07:13 PM	#1
qw12er Confirmed User Join Date: Apr 2004 Location: Montreal Posts: 799	PHP guru (socket vs firewalls question) I have 2 scripts. The first one will be on my server and will be listening for incomming socket connections. The second one, will be a client distributed on multiple server (which I don't know the servers config.). My question is will the firewalls on my clients server block the connection attemp with php fsockopen() ? Thanks. __________________ I have nothing to advertise ... yet.

03-09-2007, 07:16 PM	#2
webgeek Confirmed User Join Date: Mar 2007 Posts: 165	no. that doesn't depend on that. fsockopen is no different than a regular socket. __________________ webgeek

03-09-2007, 07:42 PM	#4
qw12er Confirmed User Join Date: Apr 2004 Location: Montreal Posts: 799	12345 right now ... but aren't all unused ports blocked by default ? Dedicated servers will be able to open this port ... but I guess webmasters on virtual servers will find it more difficult to open this port... __________________ I have nothing to advertise ... yet.

03-09-2007, 07:59 PM	#6
qw12er Confirmed User Join Date: Apr 2004 Location: Montreal Posts: 799	I though a high percentage of servers would be properly proteced by firewalls. __________________ I have nothing to advertise ... yet.

03-09-2007, 08:06 PM	#7
naitirps Confirmed User Join Date: May 2004 Location: ... Posts: 761	if your controlling whats listening on that socket, do what you please ;-) Add auth codes and code in your ips or domain lists for auth. Your own type of firewall, just on socket level. :P __________________ Programmer ICQ 44035273 \| AIM spritwork \| Email spritian at spritian dot com

03-09-2007, 07:18 PM	#3
BigBen Confirmed User Join Date: Nov 2004 Location: scv Posts: 2,299	Depends on the firewall config. What port is your script listening on?