Questions tagged [proxy]

For questions about Proxy on network devices. This tag should only be used if it concerns configuration or troubleshooting Proxy on an on topic network device.

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FortiGate 100E update through SquidProxy

I need to update a backend Fortinet FortiGate100E firewall and the only machine in the network whose ip address is authorized for internet access (from the frontend firewall) is 10.1.2.3 running ...
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Can a router port forward based on a request header? (noob question) [closed]

I'm searching for a router that supports port forwarding based on the request header. e.g. www.domain1.com should forward to port 80 on IP 168.0.1.10 www.domain2.com should forward to port 80 on IP ...
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-1 votes
1 answer
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Holding session option in Fortiweb

I have Frotiweb installed as my WAF and it is connected to FrotiSandbox for behavioral detection. In the WAF' File Security Policy, I have the "Hold Session While Scanning" turned off and &...
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How a socks proxy is different from a normal proxy? [closed]

Socks is a protocol that a proxy uses, then it's called socks proxy. A normal proxy may use any other protocol. How a socks proxy is different from other proxies. What are all the unique features of ...
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What should USERID be in a socks4 proxy connect message? [closed]

I would like to send a connect request to a socks4 proxy server, which will connect me to another remote host. I've read the socks4 protocol specification, which provides this scheme for the connect ...
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A possible solution to offloading clients on an existing network

I am working with an existing network that services approximately 1500 rural wireless clients [diagram: Customer], and it uses a single core Arista 7050T layer3 switch [diagram: Main Router] hooked up ...
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1 vote
1 answer
154 views

What is ISP proxy?

One of my customer requested to implement data center for server space rental service. He need to rent his server for data center and ISP proxies. I can setup as a data center. But i have no idea ...
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Can I use the default routing rule "ip route 0.0.0.0 0.0.0.0 f0/0 192.168.xxx.xxx" to specify 192.168.xxx.xxx as my proxy server?

I'm new to networking and I just learned Cisco router's static routing. I know that ip route 0.0.0.0 0.0.0.0 f0/0 192.168.xxx.xxx states that all packets should be forwarded to 192.168.xxx.xxx. Can I ...
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Can pfSense do routing or port forwarding based on DNS name?

Currently our network looks like this: The issue is that OpenVPN Access Server does not support working behind a proxy server so some features are currently not working. As we only have 1 external IP ...
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3 answers
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Difference between Reverse Proxy and Port Forwarding

Well both reverse proxy and port forwarding looks for any incoming packets destined to a particular machine which is present in local network. How both of them are different ?
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1 answer
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Is a VPN just a proxy which encryts data to the vpn server?

I have trouble understanding the concept of a VPN in contrast to a proxy. Is it true, that the VPN just encrypts the data which is send from the client to the vpn server and "rest" behaves ...
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Do using proxies and surfing the internet create multiple headers in the packet? [closed]

Apologies for these silly questions. As I am new to networking. For example, If I configured my browser to use proxy of IP address: a.b.c.d and my IP address: e.f.g.h. And I visit example.com. What ...
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Why do corporate networks prefer application-level over network-level proxies? [closed]

I was recently using an application at work, which was unable to download needed files because proxy settings were not configured for the application. The company firewall blocks non-proxy connections....
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1 vote
1 answer
1k views

Reverse proxy to access device with dynamic IP under NAT [closed]

I want to share (make public) some HTTP service on my laptop to access it from the internet. Laptop can be connected to the internet via different providers, e.g. via public Wi-Fi or 4G, so I can't be ...
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2 answers
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Is this translation possible on a router, or do I need a proxy?

Is this possible, I cannot seem to find a solution for it.. Using NAT,I have this config (this is on packet tracer) interface GigabitEthernet0/0/0 ip address 10.1.1.1 255.255.255.0 ip nat inside ...
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2 votes
1 answer
754 views

Does HTTP proxy sends its own TCP packets or bypasses clients packets?

Need help to understand what's happening on TCP level when http proxy is used. When client wants to open a website through a proxy, first connection is established between client and proxy. Then ...
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1 vote
1 answer
321 views

What's the meaning of `circuit level gateway`?

The proxy server is an important security function provided by the Internet "circuit level gateway". Its work is mainly at the session layer of the Open Systems Interconnection (OSI) model, which acts ...
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In port forwarding, is the ultimate destination decided solely by the intermediary entity?

In port forwarding, is the ultimate destination to connect to solely decided by the intermediary entity which provides port forwarding, not by an application client? Although the page mentions dynamic ...
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2 votes
2 answers
665 views

Why are proxies implemented on the application level of the OSI model?

Why are all proxy servers implemented on the application level of the OSI model, and not the network level? Is it possible to implement a proxy server on the network level? Such as on the gateway ...
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0 votes
1 answer
53 views

Is it possible to make a TCP connection connect back to the destination port? [closed]

I'm new in this forum, I thought I could ask a question here. I've set up a proxy by using nginx and Openresty, which supports LUA scripts, that changes the body of a HTTP SOAP POST request. The ...
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1 vote
2 answers
344 views

Routing specific TCP/UDP packets from VLAN's to proxy server

I need to set up a solution which is for routing specific TCP/UDP packets between the devices in two separate VLANs through a proxy server. For eg: all my computers are connected to one VLAN(1) and my ...
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Packet Forwarding / Proxy Server [closed]

Here's my setup: An Internet router connected to my ISP A Linux box connected to the router with one network card, and connected to a switch with the other. A Windows box connected to the switch. ...
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3 votes
1 answer
1k views

Could accessed sites over an SSH tunnel be tracked by ISP? [closed]

I created an SSH tunnel and using it as SOCKSv5 proxy on Firefox. I checked whatismyipaddress.com and some other sites, they could not detect a proxy on my computer and shows my location on the server'...
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2 answers
837 views

IP Addresses of SIP packets [closed]

On this website, it says that This shows the source and destination IP addresses of the SIP packet. Note this information will change as the packet passes between SIP proxy servers. I'm ...
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Best way to place a proxy in a network?

Correct me if I am wrong, but in a LAN, when a packet sent by a computer has a destination located in the Internet, it will send it to the gateway (which is a router only right?). Now, I want to ...
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1 vote
1 answer
757 views

Tunneling HTTP request over SSH [closed]

I'm having this webserver inside my network behind a firewall. I also have this VPS outside my network, which is publicly reachable. Now, I was wondering if it would be possible to tunnel a connection ...
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2 votes
1 answer
357 views

IPTABLES port 53 closed [closed]

I'm configuring my proxy server to serve 2 Internet connections to one end. The problem is, some websites load and some don't. My cache.log file return me this when I attempt to load a website: ...
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2 votes
2 answers
86 views

Do bits outside netmask count when defining a range of IP's?

Still trying to understand the IP slash notation. I am configuring my OSX laptop to connect to the Internet behind the corporate proxy. For the loopback address to work on my local machine after ...
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1 answer
1k views

How browsec works? [closed]

I am trying to find out how browsec works. In my college, youtube is banned. When I type youtube.com in my url, the packets carrying the url travels to the proxy server. The proxy server here blocks ...
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2 votes
2 answers
141 views

Network layout and configuration [closed]

I want to set up my Raspberry pi as a proxy server for one pc on my network. This is the scenario: I have a virgin media superhub (UK), I want any device that can connect to this with the wifi to ...
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1 vote
1 answer
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Is it the Proxy Server slowing us? [closed]

So it's the usual Server vs Network battle. What's the best way to check if it's our Proxy Server that's slowing our Internet connection? I do not have access to the Proxy Server. I can only access ...
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Proxying a private network (Ethernet LAN) at workplace to home via a VPS [closed]

We have a 172.20.0.0/* LAN at workplace. I have a Computer in this LAN with IP 172.20.164.174. This Computer has both Internet connection and workplace network access. I also have a Computer in home ...
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1 vote
0 answers
382 views

Junos HTTP reverse proxy forwarded based on HTTP host

How do I configure AppSecure to function as a reverse proxy for my web servers based on the HTTP host header field? E.g. website1.domain.com and website2.domain.com should be reverse proxied to ...
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