Search results
Results from the WOW.Com Content Network
214 Help message (A response to the HELP command) 220 <domain> Service ready 221 <domain> Service closing transmission channel 221 2.0.0 Goodbye [1] 235 2.7.0 Authentication succeeded [3] 240 QUIT 250 Requested mail action okay, completed 251 User not local; will forward 252 Cannot verify the user, but it will try to deliver the message anyway
The optional message phrases shown are typical, but any human-readable alternative may be provided, or none at all. Unless otherwise stated, the status code is part of the HTTP standard. [1] The Internet Assigned Numbers Authority (IANA) maintains the official registry of HTTP status codes. [2]
The ICMP header starts after the IPv4 header and is identified by its protocol number, 1. [6] All ICMP packets have an eight-byte header and variable-sized data section. The first four bytes of the header have fixed format, while the last four bytes depend on the type and code of the ICMP packet.
There are 4 types of administrative errors: Data-processing error: ...
Any computer with an Internet connection or on a local area network can be remotely administered. For non-malicious administration, the user must install or enable server software on the host system in order to be viewed. Then the user/client can access the host system from another computer using the installed software.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file
A checksum of a message is a modular arithmetic sum of message code words of a fixed word length (e.g., byte values). The sum may be negated by means of a ones'-complement operation prior to transmission to detect unintentional all-zero messages. Checksum schemes include parity bits, check digits, and longitudinal redundancy checks.
Low-density parity-check (LDPC) codes are a class of highly efficient linear block codes made from many single parity check (SPC) codes. They can provide performance very close to the channel capacity (the theoretical maximum) using an iterated soft-decision decoding approach, at linear time complexity in terms of their block length.