Squid random disconnects random webpages

[KOM]

The wpad.dat and proxy.pac files must reside on an HTTP server, not HTTPS. They must have correct contents. Clients on your network must be able to resolve wpad.your.domain.

[La6er]

what if my computer does not have any domain? I have set the files on another pfsense solution with the following script

function FindProxyForURL(url,host)
{
return "PROXY 10.30.251.61:3128";
}

they are located on usr/local/www/ but if I set autodetect proxy it does not work, if I set manually http://10.30.251.59/proxy.pac (which is the ip of my http pfsense) on my browser it does not work, however if i set manually the proxy conf on the browser it works perfectly, I have set a host override on my dns resolver, and I am also using static ips on my clients

[KOM]

WPAD relies on DNS having an entry for wpad on the default domain. I believe you can use a workgroup in place of a domain if you're using Windows clients. I haven't tried it but if you truly have no domain nor workgroup, you could still create an A record for wpad on your DNS and point it to pfSense LAN IP.

[La6er]

lets asume that is working properly.... my browser behavior will be... ask for the file, go to 10.30.251.59/proxy.pac and then overwrite it's own configuration with the proxy info I have set, correct? in this case 10.30.251.61:3128... in order to test if this is working I need to go to http://10.30.251.59/proxy.pac on my browser and a file should start downloading, correct? if that is the case I am not able to acomplish it, for some reason I am no able to download the file

[KOM]

Yes to all. What error do you get when you try to download the wpad file?

[La6er]

this is the error

[La6er]

I have static IPs on my clients...

is this script correct?

function FindProxyForURL(url,host)
{
return "PROXY 10.30.251.61:3128";
}

[KOM]

Perhaps you should figure out why your web server at 10.30.251.59 isn't responding.

Yes, your wpad.dat is correct, but it will force the proxy even for local connections. I use:

function FindProxyForURL(url,host)
{
// If the requested website is hosted within the internal network, send direct.
    if (isPlainHostName(host) ||
        shExpMatch(host, "*.local") ||
        isInNet(dnsResolve(host), "10.0.0.0", "255.0.0.0") ||
        isInNet(dnsResolve(host), "172.16.0.0",  "255.240.0.0") ||
        isInNet(dnsResolve(host), "192.168.0.0",  "255.255.0.0") ||
        isInNet(dnsResolve(host), "127.0.0.0", "255.255.255.0"))
        return "DIRECT";
// Else use the proxy
    return "PROXY 10.10.4.1:3128";
}

[La6er]

Thanks for all your help, I created a second instance of the nginx using this guide https://nguvu.org/pfsense/pfSense-2.3-WPAD-PAC-proxy-configuration-guide/

Everything related to nagivations seems to be working perfectly fine now...

but I have another tiny issue, when using the proxy mi clients are not able to use nat rules set on the firewall... as soon as I stop the squid they work perfectly, any ideas about this?

[KOM]

Not off the top of my head with no detail about your config.

Try posting a new topic for that issue.

[La6er]

alright, will do, thanks a lot for your support on this, I really appreciate it