Port 995 and 587 are blocked , How to open ?

Senthilv · 01-28-2011, 11:53 PM

I have Linux server (centos) in my company , Network is shared through this linux squid proxy server to Windows client .

How to open port 995 and 587 for Windows client because Outlook are not working in Windows Client ...

Help any one, How to open this port for Windows Client....

paulsm4 · 01-29-2011, 01:31 AM

Q: Are you even sure that Squid Proxy is the problem?

If a port is being "blocked", I would look first at any firewalls (software firewalls and/or routers and router firewalls) in your infrastructure.

Strong suggestion: please contact your network administrator and get his or her guidance.

EricTRA · 01-29-2011, 01:36 AM

Hello,

Squid is a HTTP proxy server AFAIK, and doesn't open/close ports. That's the job of a firewall. Do you have iptables activated on a server or a gateway somewhere in your environment? Or have a hardware firewall?

Kind regards,

Eric

damade · 02-03-2011, 09:03 AM

I think that you may be talking about the CONNECT method and its common acls.
Yours clients are trying to use a SSL connection to that ports ? They are trying to use squid to do that?
If true, you must permit the connect method for this ports

common acls
acl SSL_ports port 443 563 # https, snews
acl CONNECT method CONNECT
http_access deny CONNECT !SSL_ports

fix it with
acl SSL_ports port 443 563 587 995

salu2
damade

h.haider · 05-02-2011, 02:05 AM

Quote:

Originally Posted by damade

I think that you may be talking about the CONNECT method and its common acls.
Yours clients are trying to use a SSL connection to that ports ? They are trying to use squid to do that?
If true, you must permit the connect method for this ports

common acls
acl SSL_ports port 443 563 # https, snews
acl CONNECT method CONNECT
http_access deny CONNECT !SSL_ports

fix it with
acl SSL_ports port 443 563 587 995

salu2
damade

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