I tried to start the gatekeeper as it wasn't running. I got the following output: [simone@dps-1 edg]$ /etc/rc.d/init.d/globus-gatekeeper start Starting globus-gatekeeper:/etc/grid-security/hostcert.pem: No such file or directory unable to load certificate 7483:error:02001002:system library:fopen:No such file or directory:bss_file.c:245:fopen('/etc/grid-security/hostcert.pem','r') 7483:error:20074002:BIO routines:FILE_CTRL:system lib:bss_file.c:247: No gatekeeper certificate (X509_GATEKEEPER_CERT) No gatekeeper key (X509_GATEKEEPER_KEY) What can I do now? Thanks Simone