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centos 6 64bit local dns to resolve internet issues

dear gurus

our users using windows xp/7/8

where in their pc network until we enter global isp dns or google dns 8.8.4.4 or 8.8.8.8

the never go to internet. so for this we want to build a small server to resolve locally and forward/redirect/route traffic to internet via local dns linux  centos 6 server


so can someone assist on this ideally

regards
atmc
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Member_2_6582184
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Hello atmc,

I hope I did understand the matter correctly:
- You want a DNS server to locally resolve hostnames;#
- recursively resolve the rest with your ISP's/Google's DNS servers

The last part, the forwarder, is fairly easy to accomplish. Just install BIND on your centos box, edit the config and set your clients to use the new DNS server:
http://docs.tsuru.io/en/latest/misc/dns-forwarders.html

The other part is not so straightforward:
- As long as you use static IPs (no DHCP) then just edit the zone file as in the tutorial above.

If you want also a DHCP server with dynamic DNS updates, I recommend using a more user friendly approach and use a ready-made Firewall appliance.

I strongly recommend pfSense:
http://pfsense.org/
You can install it on any old PC. After installing it you access and configure pfSense via it's Web GUI.

Then enable the DHCP your LAN (internal) interface there and check the box to resolve DHCP leases.
Also, you might want to install the Avahi package in the package manager.

Note: Though pfSense is a fully flagged firewall, you do not need to use it as a gateway but as a DHCP/DNS server only if you like; applying no filtering at all.
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ASKER

dear sir

thank you

in fact it will be local dns which help end user clent to go on internet, via global isp dns or say google dns etc. this is needed

yes all are static ips

regards
create caching-only name server or configure dnsmasq on centos.. It's easy and provide you better recursive query results

TY/SA
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ASKER

Dear Gurus

highly appreciate but any tips links of guidline for such cases handy support onwards fruther

highly appreciate

rgds atmc
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