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-7-turnkey-fileserver_13.0-1_i386.tar.gz.sig gpg: Signature made Tue Oct 15 16:00:56 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 3a0d7fcff2d0d129148568f12e149f307a8150d9 * md5sum 210ce3b20275c469c6965ddf963614c3 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 v1.4.12 (GNU/Linux) iQEcBAABAgAGBQJSXWaxAAoJEIXCXpWhbrlN8MIIANT850P+XaLN/KTV4+LMcui9 mR13Ofhl6vPNE7vw5gdAYiWlY/R18uhcZj84W2J4FoTkryzVMkcENKJrKIpwSxUk EKMBFsSC3QvOmNlrTvQZ45TPrqTl+1vavjkmEsp0biRt194IvLaZehQJGWrW6bYi WHmP/UWXOYNgqKLbRtzDpq4mWDx+pEN2nKp83rB7FFE81B+Mv9BwqbjMs/rj0TkB F9I8bStONdQcFrqsNft7AXg1FZ5OfJAhFPMaFCWwS4Or9vHEng/FuALKQsgK2Ej+ 2eoOzIz3FUBTZF67aK4vnfqByC8Sly8H75Q301eeWaj4LPCFqMq04Fk9Bg3xBew= =SFih -----END PGP SIGNATURE-----