Do you have Snort in your setup? I've seen IPS causing this behavior.

Best regards

Kostas

Sent from my iPhone

> On 12 Δεκ 2015, at 00:13, C. R. Oldham <c...@ncbt.org> wrote:
> 
> Actually I think I characterized this problem the wrong way.
> 
> It appears that neither haproxy nor nginx (when used as a proxy) are
> reliable on our pfSense firewall.  They will work for a while, then they
> stop passing traffic for a while, then they work awhile.  Restarting them
> doesn't make them responsive immediately.  I am at a loss to explain this.
> I've confirmed there are no other processes listening on port 443 on any IP
> (virtual or physical).  If anyone has ideas I'd love to hear them.
> 
> --cro
> 
> 
>> On Fri, Dec 11, 2015 at 8:14 AM, C. R. Oldham <c...@ncbt.org> wrote:
>> 
>> Greetings,
>> 
>> We've recently replaced both our routers with pfSense.  I am using tinc
>> for site-to-site VPN and OpenVPN for clients to connect.
>> 
>> Since some of our support engineers often end up onsite with customers, I
>> want to enable OpenVPN over TCP port 443--we've noticed that many of our
>> customers block outbound UDP, but using the https port works fine.
>> 
>> However, we also have haproxy on our firewall proxying for some web
>> applications on port 443. but on a different virtual IP from OpenVPN.  If I
>> enable OpenVPN on the TCP port, haproxy stops working, even though they are
>> listening on different IPs.
>> 
>> I have appropriate firewall rules for both virtual IPs in place.
>> 
>> Can anyone shed some insight on how I can fix this?
>> 
>> Thanks.
>> 
>> --cro
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