netwyman

What is the Internet Control Message Protocol (ICMP)? The Internet Control Message Protocol (ICMP) is a network layer protocol used by network devices to diagnose network communication issues. ICMP is mainly used to determine whether or not data is reaching its intended destination in a timely manner. Commonly, the ICMP protocol is used on network devices, such as routers. ICMP is crucial for error reporting and testing, but it can also be used in distributed denial-of-service (DDoS) attacks. What is ICMP used for? The primary purpose of ICMP is for error reporting. When two devices connect over the Internet, the ICMP generates errors to share with the sending device in the event that any of the data did not get to its intended destination. For example, if a packet of data is too large for a router, the router will drop the packet and send an ICMP message back to the original source for the data. A secondary use of ICMP protocol is to perform network diagnostics; the...

This blog describes how to keep SSH connections alive. If you have experience such problems while using SSH, such as dropped or unresponsive connections, you may need to adjust some settings in your SSH client. KEEPING SSH CONNECTIONS ALIVE Depending on your hardware and software configuration, you may experience SSH connectivity issues. For example, some types of firewalls may preemptively close connections after a certain amount of time has elapsed. To work around these types of problems, you can adjust your SSH client's settings. Follow the appropriate procedure below for your own operating system. Windows operating systems Microsoft Windows operating systems use the PuTTY program to establish SSH connections. If you experience connectivity issues, you can adjust PuTTY's configuration to help keep connections alive. To do this, follow these steps: Start PuTTY. Load your connection session. In the Category pane, click Connection. Under Sending of null packets to ...