server monitoring

How to check whether UDP connection is open or not?

Tags: Server Managementserver monitoring

Published on : February 12, 2019 by

How to check whether UDP connection is open or not?

UDP is being a connectionless protocol, you can t reliably say that the port is open or not. Below two commands are the only way of checking the same. When you send a packet to the open port, there need not be any acknowledgment saying that the port is open. Theoretically, UDP should give a […]

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SysAdmin Series – Understanding the SAR Output

Tags: SARserverserver monitoring

Published on : January 1, 2019 by

SysAdmin Series – Understanding the SAR Output

System Activity Reporter aka SAR is a part of sysstat package. SAR helps you to get and compare the historical data and that too of different metrics. SAR collects the data through two cronjobs that runs every 10 minutes and at 23:53 . SAR takes the statistics of different aspects of the machine at a […]

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