1
vote
1answer
77 views

DNS caching for a DNS name with two different IP addresses (internal vs. external)

Suppose we have a DNS entry ocean.corp.tld internally pointing to an internal IP address on our corporate network, and externally pointing to an external public IP address. Essentially same DNS name ...
0
votes
1answer
67 views

best approach for small network cut off from main domain

I'm not an IT guy so please bear with me, any helpful approaches for this would be great. My team and I are working in a field project that essentially made us physically move to a new location, ...
0
votes
3answers
448 views

How does a remote IP address resolve to localhost?

I just noticed this strange warning in my syslog: postfix/smtpd[26261]: warning: hostname localhost does not resolve to address 113.167.250.138 ...which is then immediately followed by: ...
0
votes
1answer
42 views

Initial connection to static IP is slower

We have a simple printer running a jetdirect service on 9100 listening for incoming characters. It is sits behind a modem that serves a static IP to a router. I can telnet in and print arbitrary ...
1
vote
1answer
1k views

Machine name resolves to wrong IP

I have a machine called server1 (windows server 2008). It was initially set to have an automatically assigned IP by the DHCP server (windows server 2008). It assigned it 192.168.0.180. I changed ...
3
votes
1answer
717 views

Microsoft Network Monitor 3.4 - how to disable DNS IP address resolving for Source and Destination columns?

I've downloaded Microsoft Network Monitor 3.4 and it appears that I can't disable IP address to hostname DNS resolution. Is there a way to disable the DNS resolution so i.e. I'd always see: ...
2
votes
4answers
950 views

nslookup/dig differ from how a browser resolves a hostname

At my site, we just moved an important service, and made the appropriate DNS changes internally and externally to make it work. When you bring up the site in a browser, it works fine. (Works in ...