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- unix - Why node nc (netcat) give error inverse host lookup failed . . .
"Inverse host lookup failed" simply means that nc wanted to print which host name 10 0 0 10 corresponds to, but couldn't UNKNOWN is simply what it then prints as the host name This is distinct from "I looked it up, but it doesn't seem to correspond to anything" which is what happens outside the container To be perfectly explicit, connecting to the host succeeded, but looking up its name
- How to display nc return value in Linux shell script?
I am using nc command in my Linux box like below to check if a port is listening; This displays success message: nc -z 192 168 0 2 9000 This displays 0: echo $? I have combined it in a shell scr
- What is the difference between ssh proxycommand -W, nc, exec nc
The old nc version doesn't allow using different usernames for the bastion and target server Also, I recently learned that ssh 7 3 and newer introduced a ProxyJump parameter which is a more user-friendly option to the ones you mentioned
- open a port permanently on linux using nc (netcat) [duplicate]
nc is the wrong tool for this job (to a greater or lesser degree based on which version you have; the more appropriate ones have the option to fork a subprocess for each new incoming connection) Use a proper built-to-purpose superserver -- xinetd was the up-and-coming standard 25 years ago; today I'd suggest tcpsvd
- Convert NetCDF file to CSV or text using Python - Stack Overflow
I'm trying to convert a netCDF file to either a CSV or text file using Python I have read this post but I am still missing a step (I'm new to Python) It's a dataset including latitude, longitude,
- Context-sensitive Grammar for a^nb^nc^n - Stack Overflow
Is the following CSG for a^nb^nc^n correct? S->aSbC|abc Cb->bC C->c If not please explain why?
- Windows 7 netcat error: nc is not recognized as an internal or . . .
Extract the files (e g C:\NetCat) Open two cmd prompts and navigated to cd \NetCat Execute nc exe -l -p 9999 in one cmd window and nc exe localhost 9999 in another Note that I'm on a 32b windows7, for 64bit use nc64 exe Test by typing Hello in one command window and check if it is displayed in the other
- linux - nc: invalid option -- z - Stack Overflow
nc -z hostname port Into this: cat dev null | nc hostname port You might also want to add in an option like -w 1s to avoid the long default timeout There might be a cleaner combination of options that avoids the need for the dev null but I couldn't figure out what
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