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Since the XMODEM protocol required the sender to stop and wait for an <ACK> or <NAK> message from the receiver, it tended to be quite slow. In the era of 300 bit/s modems, the entire 132-byte packet required 4.4 seconds to send (132 bytes * (8 bits per byte + 1 start bit + 1 stop bit) / 300 bits per second).
0 (disable) S37 Desired Telco Line Speed 0–10 Command options: 0 Attempt auto mode connection; 1 Attempt to connect at 300 bit/s; 2 Attempt to connect at 300 bit/s; 3 Attempt to connect at 300 bit/s; 5 Attempt to connect at 1200 bit/s; 6 Attempt to connect at 2400 bit/s; 7 Attempt to connect in V.23 75/1200 mode. 8 Attempt to connect at 9600 ...
The SCP is a network protocol, based on the BSD RCP protocol, [5] which supports file transfers between hosts on a network. SCP uses Secure Shell (SSH) for data transfer and uses the same mechanisms for authentication, thereby ensuring the authenticity and confidentiality of the data in transit.
In wireless networks, the exposed node problem occurs when a node is prevented from sending packets to other nodes because of co-channel interference with a neighboring transmitter.
If you're having problems accessing AOL Mail through third-party applications, such as Outlook or Thunderbird, try troubleshooting with these suggestions to make sure your email works where and when you need it. Update your password
PuTTY (/ ˈ p ʌ t i /) [4] is a free and open-source terminal emulator, serial console and network file transfer application. It supports several network protocols, including SCP, SSH, Telnet, rlogin, and raw socket connection. It can also connect to a serial port. The name "PuTTY" has no official meaning. [5]
The designers of SSH have implemented a fix for the Terrapin attack, but the fix is only fully effective when both client and server implementations have been upgraded to support it. [1] The researchers who discovered the attack have also created a vulnerability scanner to determine whether an SSH server or client is vulnerable. [8]
The slow start protocol also performs badly for short-lived connections. Older web browsers would create many consecutive short-lived connections to the web server, and would open and close the connection for each file requested. This kept most connections in the slow start mode, which resulted in poor response time.