I'm using OpenSSH_3.7.1p2 on the client side and OpenSSH_2.9p2 on the server side. (The client can be upgraded easily; upgrading the server would be a bit of a hassle.) My client is correctly configured to use key authentication. I can log in to many servers using my key, just not this particular one. This server does have "PermitRootLogin" set to "yes". Client debugging: debug2: service_accept: ssh-userauth debug1: SSH2_MSG_SERVICE_ACCEPT received debug2: key: /u/linux111/people/kevind/.ssh/id_dsa (0x808d808) debug2: key: /u/linux111/people/kevind/.ssh/identity ((nil)) debug2: key: /u/linux111/people/kevind/.ssh/id_rsa ((nil)) debug1: Authentications that can continue: publickey,password debug1: Next authentication method: publickey debug1: Offering public key: /u/linux111/people/kevind/.ssh/id_dsa debug2: we sent a publickey packet, wait for reply debug1: Authentications that can continue: publickey,password debug1: Trying private key: /u/linux111/people/kevind/.ssh/identity debug1: Trying private key: /u/linux111/people/kevind/.ssh/id_rsa debug2: we did not send a packet, disable method debug1: Next authentication method: password Server debugging: debug1: userauth-request for user root service ssh-connection method none debug1: attempt 0 failures 0 debug2: input_userauth_request: setting up authctxt for root debug1: Starting up PAM with username "root" debug3: Trying to reverse map address 192.168.1.111. debug1: PAM setting rhost to "<removed-for-privacy>" debug2: input_userauth_request: try method none Failed none for ROOT from ::ffff:192.168.1.111 port 34048 ssh2 debug1: userauth-request for user root service ssh-connection method publickey debug1: attempt 1 failures 1 debug2: input_userauth_request: try method publickey debug1: test whether pkalg/pkblob are acceptable debug1: temporarily_use_uid: 0/0 (e=0) debug1: restore_uid debug2: userauth_pubkey: authenticated 0 pkalg ssh-dss Failed publickey for ROOT from ::ffff:192.168.1.111 port 34048 ssh2 Any ideas? Need more info? -- Kevin DeGraaf