I want all traffic on all network computers to be forced to an external proxy without having to configure the proxy settings on each individual computer on the network. Can the zywall 2+ do this for me? Thanks, Will
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Viruses, worms, bacteria, rabbits, etc. are the different types of unwanted programs that infect computers and cause obstruction in normal operation. To avoid this and to protect your computer against infection and to ensure proper operation, install good antivirus software to detect viruses and remove or repair the damaged files virus. Software acts as a gateway firewall; the firewall is four different types. The gateway packet filtering, circuit gateway and proxy server level.The firewall is the firewall packet filters most basic. Packet filtering firewall filters incoming and outgoing packets of the machine based on user configuration. For example, the package contains information on the package. So if the user has blocked a port number or IP address of all packets from that port number or IP address will be removed. A firewall in the safety circuit when recording with TCP or UDP protocol is established between the host and network. At the level of the application firewall works at the application level. A proxy server is a type of relay server.The proxy server forwards this request to a server which in turn looks for the IP address and sends the appropriate proxy server. A proxy acts as a firewall between the machine and the network. You can adjust the proxy settings for their own purposes. And 'one of the most powerful desktop security mechanisms available for security. In addition, the firewall provides the security system can also be used to guide the installation of backup software. For a LAN or network packet's internal filter can be ideal. external networks, application gateways and proxy servers are a must. Prevents unwanted packets of data and content. So if safety is a concern not forget to install the latest firewall software keeps your computer from viruses and fully functional.
You need to login to the router, and enable "port-forwarding" so that incoming traffic (80/TCP) is redirected to the ONE computer on your private network that is running a web-server that is "listening" on 80/TCP.
It depends on where you're at and how they are blocked. Generally the solution is to set up a proxy server that is not on a blocked network that you can access from over the internet. For example, if you have AT&T U-verse internet at home, at to access MySpace from work, where it's blocked. You could set up a proxy on your home computer, configure your AT&T router to pass traffic from the internet to that proxy, and then from your work computer, you would configure your browser to use your home computers IP address as a proxy. What this does is routes all traffic from your work computer to your home computer. If you utilize SSL for this connection, it's 100% encrypted and your employer only sees you accessing your home computer, they can't see what data is passing between.
The modem needed to be set to a 192.168.x.x network, and the SG300 Firewall WAN port needed to be set to a dummy IP on the same network for it's IP, and the specific 192.168.x.x address for the gateway and DNS.
You can follow the steps on this link, click here. This is the steps on how to setup port forwarding for pc anywhere on a DFL-200. There is big possibility that the DFL-80 might have the setup configuration page as the DFL-200.
From the main configuration screen select Network Setup, and then click on the Connections Tab. In the tabline below that click on Aliases.
At this point you input the Alias IP address and the netmask and add it, selecting port 25. The firewall now knows that it is to forward all traffic on port 25 to the computer that has the IP address you put in.
You should be aware that doing the above opens a direct access point into your network! Port 25 is the port used for SMTP (Sendmail) and it is the most vulnerable and most hacked service on the Internet! You should seriously consider not doing this.
A better option would be to goto the DMZ tab and configure a DMZ net on your firewall - you will need to obtain a second routable IP address from your ISP to do this though. By creating the DMZ and then routing port 25 to a machine inside the DMZ you isolate the machine running SMTP from all of the other machines inside your protected network and so make a compromise much less likely.
All of the systems inside your protected network will still have demand access to the machine in our DMZ, but the machine in your DMZ would be unable to initialize access to the protected network, which is a much safer setup.
If you're within a network and try connecting to computers on it with the WAN public IP, it simply won't work - you must use the network IP.
On an external Internet connection, it should connect fine to the public IP. If you have access to an external machine (remote desktop), or if you know of an FTP proxy, you can try it that way.
I also believe http://www.webftp.co.uk/ a web based FTP client would act as somewhat of a proxy, you could try that with the public IP and see how you go.