----- Original message from Maxim Kovgan on Wed Jun 7 15:46:23 2006 ----- > > Hello, SSH issue. > I am having this actually with SLC3.0.6, not the SL3.0.4, but maybe > you have an idea how to help this. > description: > when using keys based authentication method I get 2.5 seconds delay, i.e.: > > user@machine1:~$ time ssh machine2 hostname > time ssh ds-w10 hostname > machine2 > > real 0m2.657s > user 0m0.060s > sys 0m0.010s > user@machine1:~$ > > analysis: > At 1st I thought this is DNS issue ( although we use both direct and > reverse lookups extensively ) > After a little dig, I got to the fact that the session delays exactly > at the time when the server picks up an authentication method. > After another dig on the ssh server, I realized the ssh server is > trying to 1st authenticate user via keyboard interactive methods, and > only then 'falls back' to key based method. > GOOGLE shows there are reports on such thing in the web and ML > archives, but no solution is discussed. > After several IRC conversations I realized that this is maybe a > compile time option. > I even have tried to imply the order on the client side, but this is > not respected by the server. > > Question: Is ther a way to force sshd to use a certain order of > authentication methods ? > > Shall I simply use SL3 openssh-server package and end with it ? > :) > Hello, I have a similar problem with SL4.1 ssh *client* when I connect to a Sun machine with an old ssh protocol 1 server. If I connect to the same Sun with other ssh client server it is quite faster. #### rabeson:/u/robert > time ssh mambo hostname # from my SL4.1 machine mambo real 0m10.761s user 0m0.041s sys 0m0.012s # #### gottlieb:/u/robert > time ssh -1 mambo hostname # from Mandriva Linux release 2006.0 mambo 0.03user 0.00system 0:00.75elapsed 5%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+1272minor)pagefaults 0swaps #### django:/u/robert > time ssh mambo hostname # from Debian testing mambo real 0m0.768s user 0m0.013s sys 0m0.007s #### henocq:/u/robert > time ssh mambo hostname # old RedHat 6.2 (same old ssh client as mambo the sun) real 0m0.799s user 0m0.060s sys 0m0.000s Trying with a -v option one sees that the hang is between: debug1: identity file /u/robert/.ssh/identity type 0 and debug1: Remote protocol version 1.5, remote software version SSF-1.2.27.8-static Hope this help. -- Best regards, Robert FRANCHISSEUR ____ Apollo_gist :-)______________________________________________________ | Robert FRANCHISSEUR - Laboratoire de Météorologie Dynamique - C.N.R.S. | | Equipe "R.A.M.S.E.S." - UNIVERSITE P. et M. Curie - Tour 45-55 3ème 315C | | Boite 99 - 4, place Jussieu F-75252 PARIS CEDEX 05 FRANCE | | Phone : +33 (0)1 44 27 73 87 fax : +33 (0)1 44 27 62 72 | | e-mail : robert at lmd . jussieu . fr http : //www.lmd.jussieu.fr | --------------------------------------------------------------------------