Derek, Thanks for that reply. I know the sshd on the server does a DNS call when it starts because if I have to restart a server and the netowrk is down I will get a 120second time out during startup. I found this out when we first started using ssh years ago and I had the startup script in the wrong order (it started before TCP started) once I moved it in the start order I resolved that but I see it from time to time during outages.
I am going to try and speed up the moving of onsite DNS and hopefully that will help a bit. On Thu, Jul 16, 2015 at 10:23 AM, Derek J. Balling <dr...@megacity.org> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA512 > > > > On 7/16/2015 10:19 AM, john boris wrote: > > I understand that I will have DNS issues since most of my users > > point to a DNS server in my building (across the VPN) but if we > > are not using a DNS call (using the IP address directly) there > > should not be any lag because of no way to connect to DNS? > > I'll wager that the SSHD is still trying to do DNS resolution (PTR > records) for the IP connecting to it, so any DNS latency is going to > negatively impact the SSHD's responsiveness. > > D > > > - -- > I prefer to use encrypted mail. My public key fingerprint is FD6A 6990 > F035 DE9E 3713 B4F1 661B 3AD6 D82A BBD0. You can download it at > http://www.megacity.org/gpg_dballing.txt > > Learn how to encrypt your email with the E-Mail Self Defense Guide: > https://emailselfdefense.fsf.org/en/ > -----BEGIN PGP SIGNATURE----- > Version: GnuPG/MacGPG2 v2.0 > Comment: GPGTools - https://gpgtools.org > > iQIcBAEBCgAGBQJVp75SAAoJEGYbOtbYKrvQ9fQQAJAjuSN/+T4lo8V6/Yd56L2f > lkEtaMpUsALYeo7/UUeUJpYoylfRWIcVo5KA408F0Y0HvZ1HYUTjwwJ0LcUdS9IC > D126elO3Cw0buNwXTamWONcYqfZnTnIg0OCBDRLFpMgcwhzUOdsrzRJG8+oAPofq > tH4qQhIc/ck68RSlW7Gzc7zw5Str6ulBWut6uq2a5G8v5rAhke5qFptnVH30712t > zHSamEFvhEsUJyA983P5LJYdPzZRh3uCRQxt+2E/5DDeNE2AY+nUVMJq6Oye3Jbw > eApUax3SlDNIdWDLDnRz7bEZfiofGpXyZ0uDeU3TrYk8XncAa93fUbA3uPqOLMtn > 1vpEUxTwqKFQK0JbnOSFxYPBqrCD8J+U99Kj8Srjm/64StmQ+giKZIaASde/dqwW > mM4Hdp/JnH6oxgAZ3hQCja6rFdAgKNWF2sisjMYWcmseJBvYDhJw7XtqRrkwr8r/ > PiyW14Qy19IiQ6nplu7piuJ/p88/sDCO0SUXqP6VQ8l4lFDEMroizHkJdla5PYkY > veA2dXpss6otkTLMaL6kFbnSBVySDq4pTRx9fSpsqfaAWxCw3oQPPAL6RkTo1atl > bllIg9F+9HwF1bGAZUo+e8MSm9Dow4JnG59Ks3+JZAme3o96T629NQ5uYlaSuFI5 > Wrf/xgyrM3mWyGiVubuc > =qC38 > -----END PGP SIGNATURE----- > _______________________________________________ > Tech mailing list > Tech@lists.lopsa.org > https://lists.lopsa.org/cgi-bin/mailman/listinfo/tech > This list provided by the League of Professional System Administrators > http://lopsa.org/ > -- John J. Boris, Sr. Head Freshmen Football Coach Camden Catholic High School
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