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--- users:login [2016/03/15 12:41] – ecalore
+++ users:login [2016/03/15 19:13] (current) – [Actual login] ecalore
@@ Line 3: / Line 3: @@
 In the COKA Cluster we do not use passwords, users authentication is managed by Public-key authentication, thus you need to provide us the public key corresponding to the private key stored in the computer/account you will use to login to the cluster.
-In order to generate a keys pair if you do not have one already you can follow several guides related to different GNU/Linux distributions and other OSs too.
+===== Generating a key Pair =====
-<WRAP center round info 60%>
+In order to generate a key pair, if you do not have one already, you can follow several guides related to different GNU/Linux distributions or other OSs:
-Remember that to have access to the Cluster the login request has to start from the unife.it or fe.infn.it networks; login requests starting from IPs outside of these networks will be ignored.
+[[ https://www.debian-administration.org/article/530/SSH_with_authentication_key_instead_of_password | Debian]]
+[[ https://help.ubuntu.com/community/SSH/OpenSSH/Keys#Generating_RSA_Keys | Ubuntu]]
+[[ https://wiki.centos.org/HowTos/Network/SecuringSSH#head-9c5717fe7f9bb26332c9d67571200f8c1e4324bc | CentOS]]
+[[ https://www.howtoforge.com/how-to-configure-ssh-keys-authentication-with-putty-and-linux-server-in-5-quick-steps#how-to-configure-ssh-keys-authentication-with-putty-and-linux-server-in-quick-steps | Windows]]
+[[ https://coolestguidesontheplanet.com/make-passwordless-ssh-connection-osx-10-9-mavericks-linux/ | Mac OS X ]]
+===== Sending the public key =====
+After you have generated the key pair, you have to send us the public one (often called id_rsa.pub); we will add it to the authorized_keys for your user in the COKA Cluster front-end node.
+Once we add the key, you will be notified by e-mail and later you will be able to login to the COKA Cluster front-end node.
+===== Actual login =====
+To actually login to the front-end node, you can just type in your shell:
+<code>
+ssh your_user_name@coka.fe.infn.it
+</code>
+<WRAP center round info 80%>
+Remember that to have access to the Cluster the login request has to start from the **unife.it** network (including the [[http://www.unife.it/areainformatica/servizi/vpn | Unife VPN ]]); login requests starting from IPs outside of these networks will be ignored.
+</WRAP>
+<WRAP center round info 80%>
+Remember that your login request has to be initiated by the same account/computer where you generated the key pair (or anyway an account/computer that you have configured in order to use the private key corresponding to the public one you gave us).
 </WRAP>