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Use the kernel's ability to generate UUIDs.
This removes the dependency on either the uuid module or e2fsprogs' uuidgen.
Reviewed-by: iustinp
Remove fping as a dependency for Ganeti.
This patch completely gets rid of fping - replace all fping invocations with TcpPing calls - update documentation accordingly. - associated cleanups (use constant for localhost IP, use more sensible defaults for TcpPing and use those)...
Add function to list files in a directory, excluding those beginning with adot.
Cleanup up selective imports for utils and utils unit test.
Reviewed-by: iustinp, imsnah
Added TcpPing to do ping-alike via TCP connect(2) with defined source address.To be used to replace the currently fping(8) based reachability test.
Reviewed-by: imsnah
Fix typo in last commit.