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Home Page : Downloads : CryPing : FAQ
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This list of frequently asked questions will be extended over time.
See also CryPing - Examples.
If you cannot see your question in the above list then you can email the author care of support@cryer.co.uk.
The flag "-p 80" tells CryPing to ping port 80, which is the port used for HTTP requests. The flag "-http" tells CryPing to ping using HTTP. Both use the same port, but the behaviour is different.
The flag "-p 80" tells CryPing to simply check whether a connection can be made to port 80 and how long it takes to complete the connection, e.g.:
C:\>cryping -p 80 www.cryer.co.uk
CryPing - from www.cryer.co.uk v1.2 (build Jan 2008)
Pinging port 80 on www.cryer.co.uk:
Successful connection to www.cryer.co.uk port=80 time=88ms
Successful connection to www.cryer.co.uk port=80 time=26ms
Successful connection to www.cryer.co.uk port=80 time=28ms
Successful connection to www.cryer.co.uk port=80 time=25ms
Ping port statistics for port 80 on www.cryer.co.uk:
Requests: Made = 4, Successful = 4, Failed = 0 (0% loss),
Approximate round trip times:
Minimum = 25ms, Maximum = 88ms, Average = 42ms
The flag "-http" tells CryPing to check whether it can connect to the HTTP server, and how long it takes to complete the connection, e.g.:
C:>cryping -http www.cryer.co.uk
CryPing - from www.cryer.co.uk v1.2 (build Jan 2008)
Pinging www.cryer.co.uk for http status:
Reply from www.cryer.co.uk: 200 OK time=129ms
Reply from www.cryer.co.uk: 200 OK time=45ms
Reply from www.cryer.co.uk: 200 OK time=45ms
Reply from www.cryer.co.uk: 200 OK time=45ms
HTTP ping statistics for www.cryer.co.uk:
Requests: Sent = 4, Responses = 4, Lost = 0 (0% loss),
200 OK 4 times (100%)
Approximate round trip times:
Minimum = 45ms, Maximum = 129ms, Average = 66ms
So, in summary "-p 80" checks whether something is listening on port 80, whereas "-http" (which also connects to port 80" checks that there is an HTTP server listening.