Home > Cannot Determine > Cannot Determine Realm For Numeric Host Address Slow

Cannot Determine Realm For Numeric Host Address Slow


There are two items that might cause this problem: DNS Resolving Authentication methods that are not supported. The discussion forums that follow each tutorial allow us to comprehend technical nitty gritty's in a clear and precise manner. It doesn't seem to affect any other Linux users in my company's network, so it must be something that I've configured on my machine. US wants to extradite UK student Richard O'Dwyer on bogus claims Charles Carreon sues charities. news

debug1: channel 0: new [client-session] debug1: Entering interactive session. This site is not affiliated with Linus Torvalds or The Open Group in any way. Rene is an expert and doesn't try to impress his readers on how much he knows. Could it be the system's name servers are not working correctly? http://unix.stackexchange.com/questions/65068/why-ssh-takes-a-long-time-to-connect

Cannot Determine Realm For Numeric Host Address Linux

How can I prove its value? I've added the relevant part of the email below, with permission. How could you fix this so-called slow or delayed SSH and SCP login prompt?

  • efi January 16th, 2012 on 12:15 pm works..
  • If you didn't already do that, try running ssh-add to add the private key to the agent (run without arguments the command automatically tries to load the default key files).
  • [email protected]:~$ ssh [email protected] -v OpenSSH_4.3p2 Debian-8ubuntu1, OpenSSL 0.9.8c 05 Sep 2006 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Applying options for * debug1: Connecting to [] port 22.
  • This tool uses JavaScript and much of it will not work correctly without it enabled.
  • Questions are answered quickly and to the point.
  • There is no conflict.
  • This will allow you to determine if it's a problem with ssh-agent or something else. –UtahJarhead Oct 5 '12 at 15:51 had a similar issue. /Var/log/secure revealed that /root

Minor code may provide more information Cannot determine realm for numeric host address debug2: we did not send a packet, disable method debug1: Next authentication method: publickey debug1: Trying private key: Ballpark salary equivalent today of "healthcare benefits" in the US? Should find out how to update profile. Gssapiauthentication No I wonder if the difference in user's experiences above could be due to the combination of Centos/RHEL version and OpenSSH version?

I run dnscache on thinkpad, and the TTL of panda.zhmail.com is 2 days, and I put " thinkpad" in panda:/etc/hosts, so the delay was not caused by DNS resolving. Cannot Determine Realm For Numeric Host Address Kerberos Here's what you will see: debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password debug1: Next authentication method: gssapi-keyex debug1: No valid Key exchange context debug1: Next authentication method: gssapi-with-mic I am very happy and excited about each subject that I have learned! This will make it not use reverse lookups anymore.

I switched it back on and disabled UseDNS, which did the trick. Gssapiauthentication Slow Ssh share|improve this answer answered Sep 8 '12 at 23:16 Ansgar Wiechers 3,9322916 with the ssh-add I get ssh-add Could not open a connection to your authentication agent. Thanks in advance. It is well worth the money if you are serious about pursuing Cisco certifications.

Cannot Determine Realm For Numeric Host Address Kerberos

Any hints as to why it is waiting so long for the password branch to [email protected]:~$ ssh -v [email protected] OpenSSH_5.9p1 Debian-5ubuntu1, OpenSSL 1.0.1 14 Mar 2012 debug1: Reading configuration data /etc/ssh/ssh_config this content If that is true shutting down the DNS resolution would make ssh work faster. Cannot Determine Realm For Numeric Host Address Linux An Electronic Engineer dealing with hardware and embedded/web software development. Ssh Login Slow After Entering Password Dancer talk at YAPC::NA 2012 VLC getting proxy settings via gconf Perl Advent Calendars for 2011 How on Earth do I contact Adsense support?

Name (required) Mail (will not be published) (required) Website Notify me of follow-up comments via e-mail so that I can respond RSS feed for this post (comments) TrackBack URI Hi! navigate to this website works for me! Any hints as to why it is waiting so long for the password branch to fire? Check out your log file and see why sshd is rejecting the key. Cannot Determine Realm For Numeric Host Address Zenoss

On a desktop on the same LAN, GSSAPIAuthentication does not introduce noticeable delay. As a work-around, perhaps you could modify /etc/ssh/ssh_config GSSAPIAuthentication no /etc/init.d/sshd restart Like Show 0 Likes(0) Actions Go to original post Actions About Oracle Technology Network (OTN)My Oracle Support Community (MOSC)MOS Cannot determine realm for numeric host address Android on the HP Touchpad Hide link or anchor after click with jquery Tomcat Servlet Context initialized twice or multip... http://skimwp.org/cannot-determine/cannot-determine-realm-for-numeric-host-address-f5.php As far as I know there is no way to stop this look up.If a DNS server is running in your local network, then tell the admin of the DNS server

NetworkLessons helps me immensely in understanding all difficult CCIE R&S topics and I'm very glad for that! Ssh Takes A Long Time To Connect If you liked that post, then try these...Installing Samsung ML-1610 Linux driver manuallySSH and rsync on Lacie Ethernet Disk Mini v249MB mailbox size limit (Postfix & procmail)DNS Propagation CheckerIncremental backups with SAB September 3rd, 2013 on 10:54 am Huh… Nice tip For Ubuntu/mint combination you can uncomment this line in /etc/ssh/ssh_config Also, config file doesn't exist in .ssh dir so you can

My Twitter updatesIf you liked that post, then try these...Installing Samsung ML-1610 Linux driver manuallySSH and rsync on Lacie Ethernet Disk Mini v249MB mailbox size limit (Postfix & procmail)DNS Propagation CheckerIncremental

Viewing 5 posts - 1 through 5 (of 5 total) Author Posts November 10, 2013 at 12:41 #13503 Hector Vido Really useful! Since average users don't use Kerberos, I think the parameter should defaults to "no". Why did the best potions master have greasy hair? Debug1: Unspecified Gss Failure. Minor Code May Provide More Information Thank you Rene, for all your great lessons!

edit the /etc/ssh/ssh_config and add in this configuration (if it's not already in the config file): GSSAPIAuthentication no 3) Create a file called config in .ssh directory of respective user home Good tip! I think he's a dick.shiny on How to lose a customer, ASDANoah on Suspicious Vodafone bonus text messageSAB on Slow SSH connections - hanging at GSSAPI authCategories Battlefield - Bad Company http://skimwp.org/cannot-determine/cannot-determine-realm-for-numeric-host-address.php I originally found this fix at http://www.walkernews.net/2009/04/06/how-to-fix-scp-and-ssh-login-prompt-is-very-slow-in-linux/ and it's not specific to CentOS 6, but I've only observed this delay problem on CentOS 6.

Please fix. I recommend NetworkLessons.com to all networking professionals. I had already tried the dns=no and that didn't work but this worked like a charm. I'm fairly familiar with RHEL since I'm an RHCT however I did notice one strange thing.

up vote 1 down vote Any particular reason you're hard coding the location for your authorized_keys file? You can not post a blank message. All these have allowed me to quickly understand concepts in the production environment and for studying towards exams also. NetworkLessons.com is a fraction of this.

Those that used useDNS have totally different issue than what is solved by GSSAPIAuthentication. Here is a link to the Denyhosts FAQ on how to remove entries from /etc/hosts.deny share|improve this answer answered Oct 24 at 21:57 Marcelo Roberto Jimenez 113 add a comment| up A fully qualified domain name would be something like bugs.launchpad.net. So if your server is unable to reach the DNS server (for any reason), the ssh daemon tries to reverse lookup and wait until it times out (~30 seconds).

Networklessons.com is great for anyone who wishes to learn networking in an easy to understand format. The labs presented in his lessons are easily reproducible in GNS3 which has allowed me to hone my skills. This works great - popped an entry on the client and knocked off an off 10 second delay in ssh connections. 1/09/2013 7:01 AM valerius said... I did not want to change the ssh configuration, so i just added a record in /etc/hosts "xxx.xxx.xxx.xxx somehost" kreaton [email protected]:18 Thanks a lot!

Is there anything I can check / verify that would cause this? Without using export a variable is only available in the current shell (and its children). –Ansgar Wiechers Sep 9 '12 at 20:49 | show 2 more comments Did you find this All SSH settings in /etc/ssh/sshd_config file are default and have not been modified from their original settings. When ever I attempt to SSH to this new Oracle 6.2 server, I get IMO an extreme delay being prompted for the login users password.