TCP connection status explanation and troubleshooting
By understanding the status of TCP, We Can troubleshoot and locate network or system faults. (Summarize the content on the Network)
1. TCP status
LISTENING: listens for connection requests from
By understanding the status of TCP, We Can troubleshoot and locate network or system faults.
I. TCP status
Listening: listens for connection requests from remote TCP ports.
First, the server needs to open a socket for listening, and the status is
Must be clarified that although the article is my summary collation, but a lot of knowledge is really not I can study analysis, through listening to training, reading, practice summed up, on the one hand, in order to give their own standby, so that
SQL Server provides a dedicated administrator Link (DAC ). DAC allows administrators to access the running server to execute diagnostic functions or transact-SQL statements, or
VSFTPD as a flagship secure FTP server, there are a number of options settings. The following is a list of vsftpd profiles, all of which are based on the vsftpd.conf configuration file. This article will provide a complete vsftpd.conf Chinese
Author: He WeipingSource:Http://www.pgsqldb.org/mwiki/index.php/Pgbouncer%E6%90%AD%E5%BB%BA%E6%95%B0%E6%8D% AE %E5%BA%93%E8%BF%9E%E6%8E%A5%E6%B1%A0
Recently, we have used PostgreSQL for backend databases in some projects. Due to the need
The status code is recorded in the IIS log and may also be displayed in a Web browser or FTP client. The status code can indicate whether a specific request has been successful, and can also reveal the exact cause of the request failure.
In the MySQL error log, a large number of similar information is found: (MySQL 5.7.18)[Note] Aborted connection 1055898 to db: ' xxx ' User: ' yyy ' host: ' xxx.xxx.xxx.xxx ' (Got timeout reading communication packets)In this aborted connection case,
After the client connected to the database is abnormally disconnected, its possession is not released. For example, from the v $ session view, the corresponding session is still inactive and
After the client connected to the database is abnormally
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