This signature file may be used to cryptographically verify file integrity, like this:: $ gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys 0xA16EB94D $ gpg --list-keys 0xA16EB94D pub 2048R/A16EB94D 2008-08-15 [expires: 2023-08-12] uid Turnkey Linux Release Key $ gpg --verify debian-6-turnkey-fileserver_12.1-1_amd64.tar.gz.sig gpg: Signature made Tue Jun 4 13:34:28 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 0d77daf9e5b19e33490a978567b794f0039fa074 * md5sum 8eded4abbab85a59e597bca3404966e8 You can calculate these on your end and compare to check for errors, but cryptographic verification is recommended for security reasons. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQEcBAABAgAGBQJRrezeAAoJEIXCXpWhbrlNHikIAKA1ICNlVykJ9i0+wKHnm6YM kmg9omOhgs0gGJVq/kRCUT67rngQ0wJL4tC+cJjH/xydXZi9NEHN9LD/7o8oSM3J yo4dKOxwMY4G91kGPxH0eXm4FokdHpMNjRhMY9/soc16wuWvwBPbxwhpM4FfYTz5 Hc1V5Vgmx38YLxC02fXYKEpusQ+eskydGWtG8CufcyUzp07JlwFXZYpwkBMi0y5D Tz9AyYnTMfsx1Lja8ZguiWyaeu9H7IlRUqCMmr/gCXCLKuL3oRGNJ3aRXcqMh+7j m7zjla74iSWWRBD5fsaoLn3TSxXLMHSYOB7lfe1gIl+Pj3yOb6TLYzEfbzAa8RQ= =ihmP -----END PGP SIGNATURE-----