Hi, I am getting this error from the edg-gridftp-ls command, I have a valid certificate and CRL is also valid. ==================================================================== $ edg-gridftp-ls gsiftp://castorgrid.cern.ch/castor/cern.ch/grid/ error the server sent an error response: 535 535-FTPD GSSAPI error: GSS Major Status: Authentication Failed 535-FTPD GSSAPI error: GSS Minor Status Error Chain: 535-FTPD GSSAPI error: 535-FTPD GSSAPI error: accept_sec_context.c:170: gss_accept_sec_context: SSLv3 handshake problems 535-FTPD GSSAPI error: globus_i_gsi_gss_utils.c:881: globus_i_gsi_gss_handshake: Unable to verify remote side's credentials 535-FTPD GSSAPI error: globus_i_gsi_gss_utils.c:854: globus_i_gsi_gss_handshake: SSLv3 handshake problems: Couldn't do ssl handshake 535-FTPD GSSAPI error: OpenSSL Error: s3_srvr.c:1816: in library: SSL routines, function SSL3_GET_CLIENT_CERTIFICATE: no certificate returned 535-FTPD GSSAPI error: globus_gsi_callback.c:351: globus_i_gsi_callback_handshake_callback: Could not verify credential 535-FTPD GSSAPI error: globus_gsi_callback.c:477: globus_i_gsi_callback_cred_verify: Could not verify credential 535-FTPD GSSAPI error: globus_gsi_callback.c:769: globus_i_gsi_callback_check_revoked: Invalid CRL: The available CRL has expired 535 FTPD GSSAPI error: accepting context error the server sent an error response: 535 535-FTPD GSSAPI error: GSS Major Status: Authentication Failed 535-FTPD GSSAPI error: GSS Minor Status Error Chain: 535-FTPD GSSAPI error: 535-FTPD GSSAPI error: accept_sec_context.c:170: gss_accept_sec_context: SSLv3 handshake problems 535-FTPD GSSAPI error: globus_i_gsi_gss_utils.c:881: globus_i_gsi_gss_handshake: Unable to verify remote side's credentials 535-FTPD GSSAPI error: globus_i_gsi_gss_utils.c:854: globus_i_gsi_gss_handshake: SSLv3 handshake problems: Couldn't do ssl handshake 535-FTPD GSSAPI error: OpenSSL Error: s3_srvr.c:1816: in library: SSL routines, function SSL3_GET_CLIENT_CERTIFICATE: no certificate returned 535-FTPD GSSAPI error: globus_gsi_callback.c:351: globus_i_gsi_callback_handshake_callback: Could not verify credential 535-FTPD GSSAPI error: globus_gsi_callback.c:477: globus_i_gsi_callback_cred_verify: Could not verify credential 535-FTPD GSSAPI error: globus_gsi_callback.c:769: globus_i_gsi_callback_check_revoked: Invalid CRL: The available CRL has expired 535 FTPD GSSAPI error: accepting context ==================================================================== -- Regards, Usman Ahmad Malik Scientific Officer/System Administrator Advanced Scientific Computing National Centre for Physics Islamabad Tel: +92 - 51 227 3545 Fax:+92 - 51 920 5753 Email: [log in to unmask]