Quantcast
Channel: THWACK: Message List
Viewing all articles
Browse latest Browse all 20958

NCM connection refused to device

$
0
0

I've got a weird issue I haven't seen before. I'm trying to set up config backups to a device and ultimately set it up for realtime change detection, but i'm unable to get NCM to SSH to the device to get the backup. If I launch putty from the same server Solarwinds is installed on, I can SSH to the device with the same credentials just fine. I set NCM to use a local account to get into the device and pull the config it fails. Here's what I dug up when I enabled SSH logging events:

 

Sep 10 16:28:53.431 EDT: %SSH-5-SSH2_USERAUTH: User 'ncmservice' authentication for SSH2 Session from 10.1.8.142 (tty = 2) using crypto cipher 'aes128-cbc', hmac 'hmac-sha1' Failed

Sep 10 16:28:53.431 EDT: %SSH-5-SSH2_CLOSE: SSH2 Session from 10.1.8.142 (tty = 2) for user 'ncmservice' using crypto cipher 'aes128-cbc', hmac 'hmac-sha1' closed

Sep 10 16:28:57.567 EDT: %SSH-5-SSH2_USERAUTH: User 'ncmservice' authentication for SSH2 Session from 10.1.8.142 (tty = 3) using crypto cipher 'aes128-cbc', hmac 'hmac-sha1' Failed

Sep 10 16:28:57.567 EDT: %SSH-5-SSH2_CLOSE: SSH2 Session from 10.1.8.142 (tty = 3) for user 'ncmservice' using crypto cipher 'aes128-cbc', hmac 'hmac-sha1' closed

Sep 10 16:29:01.719 EDT: %SSH-5-SSH2_USERAUTH: User 'ncmservice' authentication for SSH2 Session from 10.1.8.142 (tty = 2) using crypto cipher 'aes128-cbc', hmac 'hmac-sha1' Failed

Sep 10 16:29:01.719 EDT: %SSH-5-SSH2_CLOSE: SSH2 Session from 10.1.8.142 (tty = 2) for user 'ncmservice' using crypto cipher 'aes128-cbc', hmac 'hmac-sha1' closed

Sep 10 16:32:53.725 EDT: %SSH-5-SSH2_CLOSE: SSH2 Session from 10.1.8.142 (tty = 1) for user 'ncmservice' using crypto cipher 'aes256-cbc', hmac 'hmac-sha1' closed

Sep 10 16:35:05.026 EDT: %SSH-5-SSH2_USERAUTH: User 'ncmservice' authentication for SSH2 Session from 10.1.8.142 (tty = 1) using crypto cipher 'aes256-cbc', hmac 'hmac-sha1' Failed

Sep 10 16:35:05.026 EDT: %SSH-5-SSH2_CLOSE: SSH2 Session from 10.1.8.142 (tty = 1) for user 'ncmservice' using crypto cipher 'aes256-cbc', hmac 'hmac-sha1' closed

Sep 10 16:36:02.174 EDT: %SSH-5-SSH2_USERAUTH: User 'ncmservice' authentication for SSH2 Session from 10.1.8.142 (tty = 1) using crypto cipher 'aes256-cbc', hmac 'hmac-sha1' Succeeded

Sep 10 16:36:08.530 EDT: %SSH-5-SSH2_CLOSE: SSH2 Session from 10.1.8.142 (tty = 1) for user 'ncmservice' using crypto cipher 'aes256-cbc', hmac 'hmac-sha1' closed

 

The thing that sticks out at me is the differing crypto ciphers (aes128-cbc vs aes256-cbc) when using Putty vs Solarwinds. Is there some way to change settings in NCM so it uses AES256?


Viewing all articles
Browse latest Browse all 20958

Latest Images

Trending Articles



Latest Images

<script src="https://jsc.adskeeper.com/r/s/rssing.com.1596347.js" async> </script>