A problem exist in the ftp client provided by Kerberos 5 1.2.2, kerberos 5 ftp client is provided by the rpm package krb5-workstation-1.2.2-12. I tested this on Redhat 7.1 i386/alpha ... # ftp localhost Connected to localhost.localdomain. 220 testbox.something.com FTP server (Version wu-2.6.1-16.7x.1) ready. 530 Please login with USER and PASS. 530 Please login with USER and PASS. KERBEROS_V4 rejected as an authentication type Name (localhost:user1): anonymous 331 Guest login ok, send your complete e-mail address as password. Password: 230 Guest login ok, access restrictions apply. Remote system type is UNIX. Using binary mode to transfer files. ftp> get ~{ remote: ~{ Segmentation fault Strace: read(0, get ~{ "get ~{\n", 1024) = 7 write(1, "remote: ~{\n", 11remote: ~{ ) = 11 rt_sigaction(SIGINT, {0x8053070, [INT], SA_RESTART|0x4000000}, {0x80576b0, [INT], SA_RESTART|0x4000000}, 8) = 0 --- SIGSEGV (Segmentation fault) --- +++ killed by SIGSEGV +++ -- /* Rodrigo Gutierrez <rodrigo@trustix.com> Trustix AS - http://www.trustix.com */