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0
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0answers
286 views

Dig returns Refused Status on norecurse?

I've looked up two questions here at serverfault, but my question's a little different in specificity - when running the dig command with the +norecurs option (I'm trying to experiment with cache here ...
6
votes
1answer
829 views

BIND9: Do forwarders have any priority?

I am just setting up my BIND9-Server and it works well so far. I decided to integrate a little gimmick into the abilities of my DNS. I want it to resolve IANA-compliant domains like *.com and *.net by ...
1
vote
1answer
1k views

Postfix block senders outside from local domains

I would like to block every mail that is coming in from a domain that is running on my server. Example: I have domain1.com on my mail server and I'm getting a mail from outside with an email address ...
0
votes
1answer
445 views

IPv6 DNS Lookup

I am trying to prevent a webserver to do IPv6 lookups (AAAA) to the DNS-server. The webserver has no IPv6 addresses set-up on the interfaces. Disabling IPv6 in sysctl.conf had no impact either, the ...
2
votes
1answer
132 views

Mysite getting too slow due to dns lookup

When I'm loading my site, its getting too slow and its mainly because of slow dnslookup. It hardly taking 28.77s to load the site. My site is hosted on godaddy. Do anyone have any idea to speed up ...
1
vote
1answer
13k views

Cisco support status lookup by serial number

Many vendors allow you to look at the support status of a device with no information besides a serial number. Does this exist for Cisco products?
1
vote
1answer
161 views

Resolving local and internet queries - Outlook

We have DNS servers on win2003 and recently migrated to Office 365 using cutover migration. When we try to make a new profile in Outlook, it's picking up the user from the AD and associating the user ...
2
votes
3answers
106 views

Reverse lookup of security policies from security group?

If I have a security group, is there an easy way to see which security policies it is used for? Is there an easy way to cross-reference this information? Perhaps a way to export an entire list of all ...
0
votes
4answers
809 views

DNS Forward Lookup on Windows Server 2003

How can I test if my forward lookups are working on my windows server 2003 machine and where do you specify the forward dns server addresses? I suspect it is not working as I set up a workstation ...
0
votes
1answer
173 views

Finding the previous nameservers for a domain

We are investigating an issue we had with DNS lookups to a specific domain (nyc.gov). Does anyone know of a tool or website to find out the previous nameservers of a domain? We suspect the ...
0
votes
1answer
249 views

I need some MySQL lookup table advice

I have a MySQL database with about 200 tables. 50 of these are small 2-field 'id-data' lookup tables. Several of these DB's are hosted on a shared server. I have been informed that I need to reduce ...
1
vote
1answer
242 views

Is it possible to perform reverse lookups on syslogs without Splunk? How?

Splunk has this capability via its Google Maps addon that allows you to map ip addresses that show up in your syslog. That way you can pinpoint geo locations of attacks such as scans. Do you guys ...
1
vote
2answers
3k views

Should my dedicated static IP address point to my domain?

I purchased a dedicated static IP address from my hosting company to host my domain name. The IP will point to me domain when I ping it. However, when I conduct reverse DNS lookup, my dedicated IP ...
1
vote
1answer
388 views

DNS lookup slow in browser for local PC

Hey, I changed my web application to use my computer name instead of the IP. Since then, the DNS lookup is very slow for 1 out of 3 pages (takes 3 seconds average). Right now, I use the default system ...
0
votes
3answers
838 views

/etc/hosts file setting for no dns lookup [closed]

Can you explain me what I need to add in my hosts file for no dns look up
0
votes
5answers
929 views

how to locate linux machine by hostname not ip address

I just got a SheevaPlug and installed subversion on it. It gets its IP address using DHCP so it can change from time to time. I would like to be able to connect (from Windows XP and Windows 7 ...