Hole punching

Hole punching may refer to:

• Hole punch, an office tool used to create holes in sheets of paper
• Punch (tool), a hard metal rod with a narrow tip which can be used for forming holes
• Hole punching (networking), a technique in computer networking to establish a connection between two parties behind firewalls
• Hole punching, deallocation of storage space in sparse files, optionally by issuing a TRIM command

This disambiguation page lists articles associated with the title Hole punching.
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