Pengertian Proxy Server

In the settings bar (home screen), select "Network Settings" and then click on Ethernet. Here you should select the "Advanced Settings" option, which contains the "Proxy Server Settings" item. To further configure the proxy, select "Configure Manually", type in the proxy hostname and specify the port. Do not forget to list the domains that the proxy server should not use. You should leave this field empty if it does not exist. If the configuration process is successful, you will see the "Settings saved" notification.

In Windows 8 and later editions it is recommended to setup network proxy through Group Policy. To do this, run GPMC.msc (via "Run" or enter in the "Search"), then select the section with the users, from the list of parameters select "Internet Settings". Further settings are not different from the standard ones in Windows. You can set proxy, specify the start page, enter restrictions and so on.

In Python, when using socket module, both TCP and UDP sockets have different local addresses (laddr) because they serve different purposes and have different characteristics.

TCP (Transmission Control Protocol) is a connection-oriented protocol that ensures reliable, in-order, and error-checked delivery of data between the sender and receiver. It uses a connection establishment phase to establish a session between the sender and receiver, and it maintains a connection state throughout the data exchange.

UDP (User Datagram Protocol) is a connectionless protocol that provides a simple and fast way to send and receive data without the overhead of establishing and maintaining a connection. It does not guarantee the delivery, order, or error-checking of data packets.

Here are the main differences between TCP and UDP sockets in Python:

1. Local Address (laddr):

2. Connection:

3. Reliability:

In summary, the different laddr values in TCP and UDP sockets are due to their different purposes and characteristics. TCP sockets use laddr to represent the listening endpoint, while UDP sockets use laddr to represent the sending or receiving endpoint.

It means organizing a connection through several VPN-servers at once. It is used to protect confidential data as much as possible or to hide one's real IP address. This principle of connection is used, for example, in the TOR-browser. That is, when all traffic is sent immediately through a chain of proxy servers.

Open the control panel of your computer, find and select the item "Network connection", and then click "Show network connections", "Local network connections" and "Properties". If there is a tick next to "Obtain an IP address automatically", then no dedicated proxy has been used. If you see numbers there, it will be your address.