I have a VPN (pptpd) server configured and a client connected. In the same machine of VPN server, I have a proxy server (port 3128)(squid) running with authentication enabled. When I use the proxy in my firefox browser it works fine. However, when I conect my notebook to my VPN server I can't navigate using firefox + proxy. Just to remember Proxy server and VPN server running in same machine (a VPS). I'm using UFW firewall.
Is there some tips in configuration files (pptpd or squid) to get this problem fixed?
Best Regards!
use squid's access.log to make sure: squid doesn't receive requests from your notebook; check the routing availability between internal IP network of VPN server and proxy address, it must be accessible (pingable). you may use port address translation (PAT) as a simple fix.
Related
Is there any way for me to connect to a VPN without having it use my DNS? My internet provider where im connected can only use the DNS to connect to a separate server, which then connects to the internet as the router only interacts with that server, so if I change my DNS, my connection instantly stops working.
Is there any service that connects to a server without DNS as a VPN, or even some way to set up a proxy to go to another server after it interacts with my DNS?
Tried Changing DNS, no connection using cloudflare or google DNS servers (1.1.1.1, 8.8.8.8), Hotspot Shield VPN wouldn't connect, VPN from my home network wouldn't connect.
So, your ISP allows DNS traffic only to its server. And you want to by-pass this limitation.
Solution 1: SSH Proxy
ssh -D 5000 user#host
Now, you can set your applications to use proxy on socks5://localhost:5000
You must set "Proxy DNS on socks5"
This proxy goes throught the SSH server
Of course you need SSH server somewhere to connect to.
Solution 2: DNS over HTTPS
https://en.wikipedia.org/wiki/DNS_over_HTTPS
https://manpages.ubuntu.com/manpages/bionic/man1/dnss.1.html
It should work because your DNS packages go as HTTPS packages.
Solution 3: VPN or other services like nordvpn
It should work also since packages go encrypted to the VPN.
Actually, VPN should work without your ISP DNS as long as you connect to the VPN IP address instead the hostname.
Finally
Solution 2 seems to be the only one you are able to perform without external services.
I've set up a proxy server using squid proxy.
Then enter the proxy server's details on my laptop and tested it. Everything is correct, I can see the public IP address that my proxy server is having and my usual addresses are reachable.
But one URL cannot open with error: ERR_TUNNEL_CONNECTION_FAILED
I've tested this specific URL on the server where the proxy is set up and it is reachable.
So, any ideas why it cannot be reached from my laptop - through the proxy?
Thank you
Charles Web Debugging Proxy not connecting to localhost. It was working right after I installed, but all of a sudden get connection refused, when trying to connect to localhost. Other traffic is going through proxy ok. The web server and proxy ports are different. *.8888 proxy listening on all addresses.
Get the following error
Charles Error Report
Failed to connect to remote host
Charles failed to connect to the remote host. Check that your Internet
connection is ok and that the remote host is accessible. Maybe your
network uses a proxy server to access the Internet? You can configure
Charles to use an external proxy server in the External Proxy
Settings.
The actual exception reported was:
java.net.ConnectException: Connection refused Charles Proxy,
http://www.charlesproxy.com/
Did you use PHP Built-in server?
The FAQs of office document say:
Localhost traffic doesn't appear in Charles
Some systems are hard coded to not use proxies for localhost traffic, so when you connect to http://localhost/ it doesn't show up in Charles.
The workaround is to connect to http://localhost.charlesproxy.com/ instead. This points to the IP address 127.0.0.1, so it should work identically to localhost, but with the advantage that it will go through Charles. This will work whether or not Charles is running or you're using Charles. If you use a different port, such as 8080, just add that as you usually would, e.g. localhost.charlesproxy.com:8080.
You can also put anything in front of that domain, e.g. myapp.localhost.charlesproxy.com, which will also always resolve to 127.0.0.1.
Alternatively you can try adding a '.' after localhost, or replace localhost with the name of your machine, or use your local link IP address (eg. 192.168.1.2).
If Charles is running and you're using Charles as your proxy, you can also use local.charles as an alternative for localhost. Note that this only works when you're using Charles as your proxy, so the above approaches are preferred, unless you specifically want requests to fail if not using Charles.
If you use php built-in server use
php -S 127.0.0.1:8080 -t ./public
instead of
php -S localhost:8080 -t ./public
I have full access to a server which is located in some other country. My IP address has been blocked blocked by a website and I need to use my server IP as proxy to access that particular website. I tried out with the server IP address in LAN Setting->use Proxies in my Chrome Browser but I am unable access the internet when i use that IP. How can I do this?
Just entering the server address on client side isn't sufficient. You need to set up your server to behave as a proxy server using something like squid or other alternative.
I have set up a squid proxy on a Ubuntu machine, and I'd like to do some testing by accessing the proxy from another computer (NOT on the same lan). But I seem to be unable to connect to the squid proxy server.
I've tried several different ways to connect: by setting the proxy in my web browser, and by using the unix program "curl" to issue http requests from a command line. But I just can't connect.
I've tried setting the acl in the configuration file squid.conf to allow access from the remote machine. So I don't know what's going on. If I try to access the internet from the same machine that the squid proxy is on, it works correctly.
The lines in squid.conf that I added to allow access from the remote machine are:
acl my_machine src 50.193.61.125/255.255.255.0
http_access allow my_machine
Is there anything else that needs to be done to allow the remote machine to access the squid proxy?
Thanks.
got the same problem. ec2 instance with fedora 19 os and squid 3.2.9. also created a security group incoming rule for port 3128. wont work if i connect from a remote pc. think there is a restriction in the aws-cloud.