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PCs on domain can not resolve external IP addresses using the DC's DNS Server

- by Ben

I currently have a domain controller which handles all DHCP and DNS. The DHCP works just fine and the domain controller itself can use the internet with no issues. However, PCs that are part of the domain are not able to use external websites, only internal. Does anyone have any way I can solve this issue? Thank you Server: Windows Server 2008 R2 PC: Win7 Enterprise x64 Edit: (domain controller) C:\Users\bcollyer>nslookup google.com Server: localhost Address: 127.0.0.1 Non-authoritative answer: Name: google.com Addresses: 2a00:1450:4009:809::100e 173.194.41.166 173.194.41.165 173.194.41.169 173.194.41.162 173.194.41.161 173.194.41.160 173.194.41.168 173.194.41.167 173.194.41.164 173.194.41.163 173.194.41.174 Edit 2: C:\Users\bcollyernetstat -rn Interface List 12...30 85 a9 f7 8a 21 ......Atheros AR8161/8165 PCI-E Gigabit Ethernet Control ler (NDIS 6.20) 1...........................Software Loopback Interface 1 13...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter 11...00 00 00 00 00 00 00 e0 Microsoft Teredo Tunneling Adapter IPv4 Route Table Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 172.16.0.67 172.16.0.202 20 127.0.0.0 255.0.0.0 On-link 127.0.0.1 306 127.0.0.1 255.255.255.255 On-link 127.0.0.1 306 127.255.255.255 255.255.255.255 On-link 127.0.0.1 306 172.16.0.0 255.255.0.0 On-link 172.16.0.202 276 172.16.0.202 255.255.255.255 On-link 172.16.0.202 276 172.16.255.255 255.255.255.255 On-link 172.16.0.202 276 224.0.0.0 240.0.0.0 On-link 127.0.0.1 306 224.0.0.0 240.0.0.0 On-link 172.16.0.202 276 255.255.255.255 255.255.255.255 On-link 127.0.0.1 306 255.255.255.255 255.255.255.255 On-link 172.16.0.202 276 Persistent Routes: None IPv6 Route Table Active Routes: If Metric Network Destination Gateway 1 306 ::1/128 On-link 1 306 ff00::/8 On-link Persistent Routes: None BTW I have no javascript on the server so can't reply to individual answers... Sorry!

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DNS redirecting to Apache

- by leo

I have CentOS installed on LVM, that is on Debian. There are BIND and Apache on CentOS. I need to access sites from browser on Debian with names like: 1.domain, 2.domain, etc. So I set up Apache and I can access these sites, but using /etc/hosts/ on Debian. And now I'm trying to configure bind. named.conf: zone "domain" IN { type master; file "/var/named/domain.zone"; allow-update { none; }; }; 192.168.100.1 is DNS' ip; 192.168.100.139 is Apache ip; domain.zone: $TTL 86400 @ IN SOA domain. root.domain. ( 100 1H 1M 1W 1D ) @ IN NS ns1.domain. @ IN A 192.168.100.139 ns1 IN A 192.168.100.1 WWW IN A 192.168.100.139 1 IN A 192.168.100.139 2 IN A 192.168.100.139 www.1 IN A 192.168.100.139 www.2 IN A 192.168.100.139 Also, is it necessary to configure 100.168.192.in-addr.arpa? Please, explain me where I'm wrong.

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error while resolving DNS requires

- by user2803887

I followed this document to configure master-slave powerdns servers... http://linuxmanage.com/master-slave-powerdns-managed-by-poweradmin.html Installation completed perfectly no errors even I feel DNS is trying to resolve some queries and parameter.. but while going through intodns.com i get below error for domain names which i have created in powerdns name server installed as above guide. Error Mismatched NS records WARNING: One or more of your nameservers did not return any of your NS records. Error Multiple Nameservers ERROR: Looks like you have less than 2 nameservers. According to RFC2182 section 5 you must have at least 3 nameservers, and no more than 7. Having 2 nameservers is also ok by me. Error Missing nameservers You should already know that your NS records at your reported by your nameservers are missing, so here it is again: nameservers ns1.makeittiny.com. ns2.makeittiny.com. I am much new to powerdns so not able to figure out where problem.. i check all things but not able to make out where problem remains.

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Incorrect Internal DNS Resolution

- by user167016

I'm having a DNS issue. Server 2008 R2. The first clue was that after being off the network for a month, I could no longer Remote Desktop into my workstation by name, it wouldn't find it. Both via VPN and internally. But if I connect using its IP, that works. Now I notice in the server's Share and Storage Management, in Manage Sessions, it's displaying the incorrect computer name for some users. So I try, for one example: Ping -a 192.168.16.81 Pinging BOBS_COMPUTER.ourdomain.local [192.168.16.81] with 32 bytes of data: - replies all successful Then I try Ping RICHARDS_COMPUTER Pinging RICHARDS_COMPUTER.ourdomain.local [192.168.16.81] with 32 bytes of data: -all replies successful In DHCP, .81 belongs to RICHARDS_COMPUTER I did try flushdns. Not sure if this is related, apologies if it's not, but when I try to connect, I also get prompted: "The identity of the remote computer cannot be verified. Do you want to connect anyway? The remote computer could not be authenticated due to problems with its security certificate. It may be unsafe to proceed.." It then lists the correct name as the name in the certificate from the remote computer, but claims that the certificate is not from a trusted authority. Any thoughts are most appreciated!

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DNS/Nameserver issue. Can't ping IP or domain

- by Tar

I get this when I ping an IP: 21:31:50.136623 IP SITE_IP > 173.194.33.4: ICMP echo request, id 14941, seq 1, length 64 21:31:51.136138 IP SITE_IP > 173.194.33.4: ICMP echo request, id 14941, seq 2, length 64 21:31:52.136118 IP SITE_IP > 173.194.33.4: ICMP echo request, id 14941, seq 3, length 64 21:31:53.136129 IP SITE_IP > 173.194.33.4: ICMP echo request, id 14941, seq 4, length 64 21:31:54.136102 IP SITE_IP > 173.194.33.4: ICMP echo request, id 14941, seq 5, length 64 21:31:55.136153 IP SITE_IP > 173.194.33.4: ICMP echo request, id 14941, seq 6, length 64 and when I ping a domain: 21:29:33.631583 IP 74.125.189.19.52085 > SITE_IP.domain: 28952 A? google.com.MY_DOMAIN. (42) 21:29:38.626553 IP SITE_IP.42280 > 8.8.4.4.domain: 52435+ A? google.com.MY_DOMAIN. (42) 21:29:38.652675 IP 74.125.189.22.63658 > SITE_IP.domain: 36178 A? google.com.MY_DOMAIN. (42) 21:29:43.631626 IP SITE_IP.48205 > 8.8.8.8.domain: 52435+ A? google.com.MY_DOMAIN. (42) The pinging of a domain is what worries me, because it looks like it is checking my DNS files for the resolution. Here is etc/resolv.conf nameserver 8.8.8.8 nameserver 8.8.4.4 /etc/hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 SITE_iP server.MY_DOMAIN.com server Will also add that I am seeing a number of 'SERVFAIL'.. I have no idea what could be causing this problem. If there is any other information I need to provide, let me know. I'm using CentOS.

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Why does my name resolution hit the DNS even with a hosts file entry?

- by Volomike

I'm running Ubuntu 10.04.2 LTS Desktop. Being a web developer, naturally I created a "me.com" in my /etc/hosts file. Unfortunately, my name resolution is going out to the DNS before first checking my local hosts entry and I can't figure out why. The end result is that if my /etc/resolv.conf contains "nameserver 127.0.0.1" in there first, then I get a response back in my web browser from me.com (local) within less than a second. But if I don't have that entry, then my response takes sometimes as much as 5 seconds if my ISP is a little slow. The problem was so troublesome that I actually had to file a question here (and someone resolved it) for how to automatically insert that entry into /etc/resolv.conf. But one of the users (@shellaholic) here highly recommended (and commented back and forth with me about it) that I should file this question. Do you know why my workstation's name resolution has to hit the DNS server first before hitting my /etc/hosts file entry? For now, I'm using the resolv.conf trick (see link above).

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Can too many 301 redirects cause a DNS error?

- by Graham

For a site http://imageocd.com that I just set up I initially spelled the category "automobiles" as "autimobiles"... I know it's rediculous. I then set up over 10,000 pages behind that category e.g. http://imageocd.com/automobiles/hillman-minx-cabrio-pictures-and-wallpapers. So, I set up over 10,000 301 url redirects to change the spelling on automobiles. I just checked my Google Webmasters report and got an error saying: http://www.imageocd.com/: Googlebot can't access your siteSep 7, 2012 Over the last 24 hours, Googlebot encountered 2 errors while attempting to retrieve DNS information for your site. The overall error rate for DNS queries for your site is 66.7%. Could the overabundance of 301 redirects be causing this? I host 13 sites on this dedicated server and all sites are running fine. I also contacted GoDaddy and they said the server is running fine. Any ideas on what might be going on? Also, I have "canonical" set up for every URL. Could this be part of the error? Thanks.

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Setting up DNS server on VPS on the internet

- by Nick Duffell

I have followed multiple online tutorials on setting this up, it is BIND9 on a debian server. It is the only server I have, so it is acting as both ns1, ns1, and the server they domain name should point to itself. It all appears to be working and when I dig the domain name from the server itself I get (what seems to me) the correct output: ; << DiG 9.7.3 << theonetekkit.com.au ;; global options: +cmd ;; Got answer: ;; -HEADER<<- opcode: QUERY, status: NOERROR, id: 18593 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2 ;; QUESTION SECTION: ;theonetekkit.com.au. IN A ;; ANSWER SECTION: theonetekkit.com.au. 3000 IN A 103.4.17.189 ;; AUTHORITY SECTION: theonetekkit.com.au. 3000 IN NS ns1.theonetekkit.com.au. theonetekkit.com.au. 3000 IN NS ns2.theonetekkit.com.au. ;; ADDITIONAL SECTION: ns1.theonetekkit.com.au. 3000 IN A 103.4.17.189 ns2.theonetekkit.com.au. 3000 IN A 103.4.17.189 ;; Query time: 15 msec ;; SERVER: 103.4.17.189#53(103.4.17.189) ;; WHEN: Wed Nov 7 02:12:58 2012 ;; MSG SIZE rcvd: 121 When I dig it from another server / computer, however, I am getting a problem: ; << DiG 9.7.3 << theonetekkit.com.au ;; global options: +cmd ;; Got answer: ;; -HEADER<<- opcode: QUERY, status: SERVFAIL, id: 56637 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;theonetekkit.com.au. IN A ;; Query time: 22 msec ;; SERVER: 103.4.16.166#53(103.4.16.166) ;; WHEN: Wed Nov 7 02:12:40 2012 ;; MSG SIZE rcvd: 37 I have given it more than enough time for the records to be refreshed since setting up the DNS server, so I don't know what would be causing this. Any ideas? Thanks

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DNS delegation on same server with DDNS and second slave server

- by Austin

I have two servers running BIND, the first is setup as the master of two zones and the second as a slave for those zones. The zones are example.com and ddns.example.com. I have DDNS running and thousands of device entries are dynamically created in ddns.example.com. I wanted to keep DDNS separate from the main example.com, so I created a separate zone that the DHCP servers update. Considering these zones are hosted on the same server, is it possible to have delegation working from example.com to ddns.example.com? For example if my workstation's search domain is example.com and pointed towards 10.1.10.1 for its DNS provider, I would like to be able to resolve hostname.ddns. As it is, I can resolve hostname.ddns.example.com, but would like to be able to resolve just hostname.ddns. Alternatively, if the workstation's search domain is ddns.example.com, what settings do I need to be able to change to be able to resolve web, ftp, etc, which are all hosts in the parent, example.com zone? Does the ddns.example.com zone need to forward to the example.com zone? Again, all the zones are setup on the same server with a second server setup as a slave. named.conf: zone "example.com" IN { type master; file "example.com"; allow-update { none; }; } zone "ddns.example.com" IN { type master; file "ddns.example.com"; allow-update { key dhcp-update; }; } example.com zone file: $ORIGIN . $TTL 86400 example.com IN SOA ns1.example.com. hostmaster.example.com. ( serial, refresh, retry, etc. ) NS ns1.example.com. NS ns2.example.com. $ORIGIN example.com. ns1 A 10.1.10.1 ns2 A 10.1.10.2 web A 10.1.15.30 ftp A 10.1.15.31 host3 A 10.1.15.32 $ORIGIN ddns.example.com NS ns1 NS ns2 ns1 A 10.1.10.1 ns2 A 10.1.10.2

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Providing DNS redirection to honeypot server for known bad domains

- by syn-

Currently running BIND on RHEL 5.4 and am looking for a more efficient manner of providing DNS redirection to a honeypot server for a large (30,000+) list of forbidden domains. Our current solution for this requirement is to include a file containing a zone master declaration for each blocked domain in named.conf. Subsequently, each of these zone declarations point to the same zone file, which resolves all hosts in that domain to our honeypot servers. ...basically this allows us to capture any "phone home" attempts by malware that may infiltrate the internal systems. The problem with this configuration is the large amount of time taken to load all 30,000+ domains as well as management of the domain list configuration file itself... if any errors creep into this file, the BIND server will fail to start, thereby making automation of the process a little frightening. So I'm looking for something more efficient and potentially less error prone. named.conf entry: include "blackholes.conf"; blackholes.conf entry example: zone "bad-domain.com" IN { type master; file "/var/named/blackhole.zone"; allow-query { any; }; notify no; }; blackhole.zone entries: $INCLUDE std.soa @ NS ns1.ourdomain.com. @ NS ns2.ourdomain.com. @ NS ns3.ourdomain.com. IN A 192.168.0.99 * IN A 192.168.0.99

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SMTP host name vs. domain in "From:" address vis-a-vis Email Deliverability

- by Jared Duncan

I'm trying to implement (or make sure that I'm correctly following) email sending best practices to improve deliverability, but the role of the smtp server's host name vs the domain name of the From: email address seems to be unclear, even after reading dozens of people's articles/input. Specifically, I understand that to satisfy the reverse DNS check, there must be a PTR record for the IP address of the sending machine that yields a domain name that matches the host name of the sending machine / SMTP server. Some say it needs to match the one given by the "hostname" command, most say it's the one provided with the HELO / EHLO statement, and this guy even says they MUST be the same (according to / enforced by what, I don't know; that's only a minor point of confusion, anyhow). First, what I can't find anywhere is whether or not the domain name of the From: email address needs to match the domain name of the SMTP server. So in my case, I have a VPS with linode. It primarily hosts a particular domain of mine, example.com, but I also sometimes do work on other projects: foo.com and bar.com. So what I'm wondering is if I can just leave the default linode PTR record (which resolves to abc.def.linode.com), make sure that abc.def.linode.com is what my mail server (qmail) is configured to say at HELO, and then proceed to use it to send out emails for example.com, foo.com, et al. If so, then I am confused by the advice given here, specifically (in a listing of bad case scenarios): No SPF record for the domain being used in the HELO command Why would THAT domain need an SPF record? And if it does, which domain should it provide whitelisting for: the HELO domain, or the domain of the From: email address (envelope sender)? Also, which domain would need to accept mail sent to [email protected]? If the domains must be the same, that would seem rather limiting to me, because then for every domain you wanted to send email from, you'd have to get another IP address for it. It would also compromise or ruin one's ability to do non-email sending things (e.g. wget) relatively anonymously. However, the upside--if this is the case--is that it would make for a far less confusing setup. I'm currently using the linode.com SMTP+PTR domain and example.com From: address combination without much of any deliverability issue, but my volume is very low and I'd like to know if someone out there has experience with larger volumes and has specifically tested the difference and/or has inside knowledge and/or has an authoritative answer (and source) for this particular question. I'm happy to clarify anything, let me know. Thanks in advance.

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Hidden DNS master only sending notify to one slave

- by Rob

My hidden DNS master is only sending notifies to one of the name servers for a zone I have 3 named servers ns0,ns1 & ns2 all running bind 9.7.3.dfsg-1ubuntu4.1. When an update is processed the master (ns0) seems to behave normally. ns0 (192.168.2.50) zone domain.org/IN: sending notifies (serial 2012060703) client 192.168.2.52#42892: transfer of 'domain.org/IN': AXFR-style IXFR started: TSIG rndc-key client 192.168.2.52#42892: transfer of 'domain.org/IN': AXFR-style IXFR ended ns2 (192.168.2.52) client 192.168.2.50#3762: received notify for zone 'domain.org': TSIG 'rndc-key' zone domain.org/IN: Transfer started. transfer of 'domain.org/IN' from 192.168.2.50#53: connected using 192.168.2.52#55747 zone domain.org/IN: transferred serial 2012060704: TSIG 'rndc-key' transfer of 'domain.org/IN' from 192.168.2.50#53: Transfer completed: 1 messages, 34 records, 1028 bytes, 0.001 secs (1028000 bytes/sec) Nothing happens on ns1. I've turned up the logging level but there's no information in syslog about the actual name servers bind has sent notifications to so I guess this is something it doesn't log. I've also tried watching tcpdump, it never makes any attempt to notify ns1 only ns2 192.168.2.50.56278 > 192.168.2.52.53: [udp sum ok] 56418 notify [b2&3=0x2400] [1a] [1au] ? SOA? domain.org. domain.org. [0s] SOA ns1.domain.net. dnsmaster.domain.net. ? 2012060801 10800 3600 604800 3600 ar: rndc-key. ANY [0s] TSIG hmac-md5.sig-alg.reg.int. fudge=300 maclen=16 origid=56418 error=0 otherlen=0 (174) the authoritive zone has both ns1 and ns2 records $ORIGIN domain.org. $TTL 3h @ IN SOA ns1.domain.net. dnsmaster.domain.net. ( 2012060801 ; Serial yyyymmddnn 3h ; Refresh After 3 hours 1h ; Retry Retry after 1 hour 1w ; Expire after 1 week 1h ) ; Minimum negative caching of 1 hour @ 3600 IN NS ns1.domain.net. @ 3600 IN NS ns2.domain.net. // Edit I have added also-notify {192.168.2.51;192.168.2.52;}; explicitly to the zone file and it all works fine, both ns1 and ns2 get notify messages and transfers succeed. I was under the impression bind would automatically send notifies to all NS records on a zone, maybe it's bugged?

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DNS NS and domain clarification

- by thejartender

I am really trying to get my home web server up and I don't seem to be succeeding. My web server withing my host system is running my web application and is viewable at the current isp ip 88.89.190.171 over WAN indicating that the webapp is fine and that router ports are forwarded. I have set up a DNS on this system with a single name server in the network and I manage to ping it with ping ns.thejarbar.org I have registered this private name server at my current hosting provider. My domain (thejarbar.org) is obviously registered and I have pointed it to my name server. My question here is if it is simply a matter of waiting on propagation for me to be able to ping my domain? Another way of asking this is if the fact that my name server is discoverable indicates that I have set it up correctly to be used? I have tested with dig and dig -x on my host and have A records for the name server. The server is not the Authorative server so I am concerned that this may be the reason why my site is not discoverable. Is there anything else I may need to so still? I only have one ns. currently, but should this succeed I will be purchasing a more stable secondary system to host my development applications. This is my best chance at getting work (freelance development) due to illness) and this I feel is the last step I need to succeed. Please note that this is temporarily a home server and I will most likely be using it as part of a professional setup very soon I will likely have to repeat this question therefore in a prefessional context in a few weeks as nothing will be different other than the fact that I am going to have a server running elsewhere. I am using bind9 and Ubuntu 12.10 and my records are: $TTL 3D @ IN SOA ns.thejarbar.org. email. ( 13112012 28800 3600 604800 38400 ); thejarbar.org. IN A 10.0.0.42 @ IN NS ns.thejarbar,org. yuccalaptop IN A 10.0.0.19 ns IN A 10.0.0.42 gw IN A 10.0.0.138 www IN CNAME thejarbar.org. $TTL 3D 0.0.10.in-addr.arpa. IN SOA ns.thejarbar.org. email. ( 13112012 28800 3600 604800 38400 ); 0.0.10.in-addr.arpa. IN NS ns.thejarbar.org. 42 IN PTR thejarbar.org. 19 IN PTR yuccalaptop.thejarbar.org. 138 IN PTR gw.thejarbar.org. My localhost IP is 10.0.0.42 I wish for this to be my host and name server.

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Virtual Private Hosting DNS configuration

- by Ciel

I did a great deal of reading here before posting this because I didn't want to post a duplicate - but I'm on a bit of a deadline and getting frustrated, so here goes... I very, very, very sincerely apologize if this is long winded or hard to read. Please - please just ask for any information or clarification and I will give it as quickly as I possibly can. This has become very frustrating to me and this is the last place I know to turn. I have no experience with setting up DNS, no experience with nameservers, and no peers to go to for help. So this is kind of my last ditch effort. The task of setting up a private server has, through circumstances beyond my control, fallen into my lap. I own a domain (hereafter referred to as yyy.com) and have always used shared hosting - I buy a package and just point it to the domain nameservers they give me. It's always been simple. yyy.com is registered with network solutions Now I have purchased a Virtual Private Hosting package from GoDaddy.com - and it comes with Plesk 11. I have no earthly idea how to begin to get the right nameserver for yyy.com. I have gone through the instructions and have wound up exceedingly frustrated. I have 2 IP addresses from GoDaddy for the server. This is what I have so far, and I cannot tell if it is working (Since propogation takes so long, it is extremely hard to test for me) IP 1 : XX.XX.XX.XX IP 2 : YY.YY.YY.YY (obviously hidden for privacy) Now after going through the documentation setup and waiting a few days, this is the setup I have - and so far it does not appear to be working. Host Record type Value XX.XX.XX.XX / 24 PTR yyy.com. yyy.com. NS ns1.yyy.com. yyy.com. A XX.XX.XX.XX yyy.com. MX (10) mail.yyy.com. ftp.yyy.com. CNAME yyy.com. ipv4.yyy.com. A XX.XX.XX.XX mail.yyy.com. A XX.XX.XX.XX mssql.yyy.com. A XX.XX.XX.XX ns1.yyy.com. A XX.XX.XX.XX ns2.yyy.com. A YY.YY.YY.YY webmail.yyy.com. A XX.XX.XX.XX www.yyy.com. CNAME yyy.com. yyy.com is pointing to both ns1.yyy.com and ns2.yyy.com Can anyone give me some assistance here? This is a learning experience for me and days of documentation have left me very confused.

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Mac OSX 10.8 Server DNS Domain Routing

- by Oldek

I just cant seem to figure out the logic in how to configure my Mac Server. So I have set up an DNS, which will take the domain and all subdomains and point towards an IP. File: db.mydomain.com (in /var/named/) mydomain.com. 10800 IN SOA mydomain.com. admin.mydomain.com. ( 2012110903 ; serial 3600 ; refresh (1 hour) 900 ; retry (15 minutes) 1209600 ; expire (2 weeks) 86400 ; minimum (1 day) ) 10800 IN NS mydomain.com. 10800 IN A 10.0.1.2 www.mydomain.com. 10800 IN A 10.0.1.2 So I want all of these requests to be requested to the 10.0.1.2 server, as I run 2 servers in my cluster. This one has always handled the requests, and now I want to add a server in between. So the server in between will get all the signals from my router which NAT the trafic coming from outside. So after setting this up and trying to point my port 80 towards my new server which will be the middle point, it doesn't work. Is it even possible to do it this way? First server: Mac Second server: Linux So what I try to achieve once more: 1. User goes to mydomain.com or www.mydomain.com 2. User request gets handled by my first server 3. First server refers to a local server, which is only available locally (it is configured to allow requests on port 80 and handle them) 4. Second server receives signal 5. Second server returns a request (either directly send to user or send through first server, whichever is most secure and configurable) I also want to be able to set up domains that lead to other servers in the future, and some that are only available within the VPN. (If that changes anything) I hope some kind soul could help me with this, it is really cumbersome for my mind to get the logic here. Do I have to configure my other server in any way? /Marcus

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Setting Up My Server to Do DNS On OpenSuse 11.3

- by adaykin

Hello, I am attempting to use my server to be a DNS server. I am having trouble getting the domain setup. Here is what I have so far: /var/lib/named/master/andydaykin.com: $TTL 2d @ IN SOA andydaykin.com. root.andydaykin.com. ( 2011011000 ; serial 0 ; refresh 0 ; retry 0 ; expiry 0 ) ; minimum andydaykin.com. IN NS ns1.andydaykin.com. andydaykin.com. IN SOA ns1.andydaykin.com. hostmaster.andydaykin.com. ( @.andydaykin.com. IN NS ns1.andydaykin.com. ns1.andydaykin.com. IN A 204.12.227.33 www.andydaykin.com. IN A 204.12.227.33 /etc/resolve.conf: search andydaykin.com nameserver 204.12.227.33 /etc/named.conf: options { # The directory statement defines the name server's working directory directory "/var/lib/named"; dump-file "/var/log/named_dump.db"; statistics-file "/var/log/named.stats"; listen-on port 53 { 127.0.0.1; }; listen-on-v6 { any; }; notify no; disable-empty-zone "1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.IP6.ARPA"; include "/etc/named.d/forwarders.conf"; }; zone "." in { type hint; file "root.hint"; }; zone "localhost" in { type master; file "localhost.zone"; }; zone "0.0.127.in-addr.arpa" in { type master; file "127.0.0.zone"; }; Include the meta include file generated by createNamedConfInclude. This includes all files as configured in NAMED_CONF_INCLUDE_FILES from /etc/sysconfig/named include "/etc/named.conf.include"; zone "andydaykin.com" in { file "master/andydaykin.com"; type master; allow-transfer { any; }; }; logging { category default { log_syslog; }; channel log_syslog { syslog; }; }; What I am doing wrong?

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Find a Faster DNS Server with Namebench

- by Mysticgeek

One way to speed up your Internet browsing experience is using a faster DNS server. Today we take a look at Namebench, which will compare your current DNS server against others out there, and help you find a faster one. Namebench Download the file and run the executable (link below). Namebench starts up and will include the current DNS server you have configured on your system. In this example we’re behind a router and using the DNS server from the ISP. Include the global DNS providers and the best available regional DNS server, then start the Benchmark. The test starts to run and you’ll see the queries it’s running through. The benchmark takes about 5-10 minutes to complete. After it’s complete you’ll get a report of the results. Based on its findings, it will show you what DNS server is fastest for your system. It also displays different types of graphs so you can get a better feel for the different results. You can export the results to a .csv file as well so you can present the results in Excel. Conclusion This is a free project that is in continuing development, so results might not be perfect, and there may be more features added in the future. If you’re looking for a method to help find a faster DNS server for your system, Namebench is a cool free utility to help you out. If you’re looking for a public DNS server that is customizable and includes filters, you might want to check out our article on helping to protect your kids from questionable content using OpenDNS. You can also check out how to speed up your web browsing with Google Public DNS. Links Download NameBench for Windows, Mac, and Linux from Google Code Learn More About the Project on the Namebench Wiki Page Similar Articles Productive Geek Tips Open a Second Console Session on Ubuntu ServerShare Ubuntu Home Directories using SambaSetup OpenSSH Server on Ubuntu LinuxDisable the Annoying “This device can perform faster” Balloon Message in Windows 7Search For Rows With Special Characters in SQL Server TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 How to Add Exceptions to the Windows Firewall Office 2010 reviewed in depth by Ed Bott FoxClocks adds World Times in your Statusbar (Firefox) Have Fun Editing Photo Editing with Citrify Outlook Connector Upgrade Error Gadfly is a cool Twitter/Silverlight app

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Do you know your DNS server?

- by John Paul Cook

If you don’t know your DNS server is valid, you need to find out before July 9. The FBI found rogue DNS servers and replaced them with clean, safe DNS servers to protect the public. These safe, clean servers will be turned off on July 9, 2012. If your computer was compromised to use the rogue servers, it will stop resolving DNS queries on July 9 when the clean servers are turned off. The FBI has provided full technical details at http://www.fbi.gov/news/stories/2011/november/malware_110911/DNS-changer-malware.pdf...(read more)

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Do you know your DNS server?

- by John Paul Cook

If you don’t know your DNS server is valid, you need to find out before July 9. The FBI found rogue DNS servers and replaced them with clean, safe DNS servers to protect the public. These safe, clean servers will be turned off on July 9, 2012. If your computer was compromised to use the rogue servers, it will stop resolving DNS queries on July 9 when the clean servers are turned off. The FBI has provided full technical details at http://www.fbi.gov/news/stories/2011/november/malware_110911/DNS-changer-malware.pdf...(read more)

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DNS with name.com and Amazon S3

- by aledalgrande

I have a website on a bucket in Amazon S3, and recently started to get emails from Google "Googlebot can't access your site". When I go to Webmaster Tools and I try to fetch in fact it doesn't work. Also people in locations different from mine sometimes reported they could not access the website. Now for curiosity I tried from my terminal: $ host xxx xxx is an alias for xxx.s3-website-us-west-1.amazonaws.com. xxx.s3-website-us-west-1.amazonaws.com is an alias for s3-website-us-west-1.amazonaws.com. s3-website-us-west-1.amazonaws.com has address yyy.yyy.yyy.yyy And when I try with dig: $ dig xxx ; <<>> DiG 9.8.3-P1 <<>> xxx ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 17860 ;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;xxx. IN A ;; ANSWER SECTION: xxx. 300 IN CNAME xxx.s3-website-us-west-1.amazonaws.com. xxx.s3-website-us-west-1.amazonaws.com. 60 IN CNAME s3-website-us-west-1.amazonaws.com. s3-website-us-west-1.amazonaws.com. 60 IN A yyy ;; Query time: 1514 msec ;; SERVER: 75.75.75.75#53(75.75.75.75) ;; WHEN: Fri Aug 22 12:32:13 2014 ;; MSG SIZE rcvd: 127 It seems OK to me. Why would Google tell me there is a DNS error? UPDATE: Google also cannot fetch robots.txt, but I can fetch it from my browser. UPDATE 2: I have a forwarding on the root to the www.* hostname: $ dig thenifty.me ; <<>> DiG 9.8.3-P1 <<>> thenifty.me ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49286 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0 ;; QUESTION SECTION: ;thenifty.me. IN A ;; AUTHORITY SECTION: thenifty.me. 300 IN SOA ns1hwy.name.com. support.name.com. 1 10800 3600 604800 300 ;; Query time: 148 msec ;; SERVER: 75.75.75.75#53(75.75.75.75) ;; WHEN: Fri Aug 22 13:32:56 2014 ;; MSG SIZE rcvd: 88

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How can I unregister a service with dns-sd?

- by Roman

I am trying to use "dns-sd" command line tool on my Windows 7 machine. I can already do something. For example I can register a service using "dns-sd -R ...". I also can browser (see) registered services using "dns-sd -B ...". What I still miss, is how to unregister a service. At the moment when I type "dns-sd -R ..." the dns-sd does not return me to the command prompt. To return to the command prompt I need to press Ctrl-C. And the service stays registered till I press Ctrl-C. What I want is to run "dns-sd -R ..." in the background regime and then I would like to have a possibility to unregister a service from the command line. One more thing which I do not understand yet is what "to look up a service" means. In my picture it should be sufficient to register a service, to see it and then to unregister it. But apparently I need to look up a service. What does it mean and why I need to do it? ADDED: As it is asked, I clarify. I refer to "dns-sd" command line tool which I use in Windows 7. I think this command is part of Bonjour software for Windows (from Apple). Well, I did not checked if I had this command before I installed Bonjour, but I assume I did not have it. So, my question is about this command.

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Can I get a domain controller not to act as DNS for the members?

- by rsw

Hi, Let me try to explain my current setup. I have one linux machine acting as DHCP and DNS (dhcpd3 and bind) in my network. This works fine, all computers I hook up to the network gets an IP address and proper DNS servers set. Let's call it 10.12.0.10 However, we also have a Windows Server 2003 Domain Controller in our network to which we add our Windows computers (running XP), let's call it 10.12.0.20. I noticed that when I run 'nslookup' on one of the windows machines, it says that the primary DNS is 10.12.0.20. This have not been much of a problem since: The Windows clients are stationary The Windows server in itself point out my real DHCP/DNS, since I can reach everything specified in it However, this turns out to be a problem when we use Laptops. They connect to the domain here and gets a DNS server, but when the user travels or connect the computer from home, we hit a problem. They are connected to their internet, but their DNS is 10.12.0.20 which they can't reach since they're at home and not at the office network. I solved this by removing the register key called "NameServer" with the value 10.12.0.20, but it gets set again whenever they logon to the domain the next time (when they get back to the office). Can I somehow make the computers take whatever DNS server they are handed when connecting to the internet or a home network, instead of always trying to reach the Domain Controller?

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What is proper relationship between /etc/hosts and DNS A records for a Linux server?

- by MountainX

I have an Ubuntu server. It is going to be a web server with a URI of www.example.com. I have a DNS A record pointing www.example.com to the server's IP address. Let's say I pick "trinity" as the hostname for this server. I want to set up the DNS records correctly. I need reverse DNS to www.example.com, so a CNAME for www.example.com doesn't seem appropriate. Here's my question: Is it considered best practice to set up two DNS records (which in my case would likely be two A records), one for www.example.com and one for trinity.example.com, both pointing to this server's IP address? (Or, even if it is not accepted as a best practice, is it a good idea?) If so, would the following be a proper /etc/hosts file? $ cat /etc/hosts 127.0.1.1 trinity.local trinity 99.100.101.102 trinity.example.com trinity www.example.com This server is a Linode and Linode's docs seem to imply that the above approach is best (if I am reading them correctly). Here's the relevant section. I bolded the line that seems to apply here. Update /etc/hosts Next, edit your /etc/hosts file to resemble the following example, replacing "plato" with your chosen hostname, "example.com" with your system's domain name, and "12.34.56.78" with your system's IP address. As with the hostname, the domain name part of your FQDN does not necesarily need to have any relationship to websites or other services hosted on the server (although it may if you wish). As an example, you might host "www.something.com" on your server, but the system's FQDN might be "mars.somethingelse.com." File:/etc/hosts 127.0.0.1 localhost.localdomain localhost 12.34.56.78 plato.example.com plato The value you assign as your system's FQDN should have an "A" record in DNS pointing to your Linode's IP address. For more information on configuring DNS, please see our guide on configuring DNS with the Linode Manager.

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Ask HTG: Disabling Windows Startup Programs, Using DNS Names on Your Home Network, and Restoring a Vintage Keyboard

- by Jason Fitzpatrick

Once a week we round up some of the answers we’ve sent out to readers and share them with everyone. This week we’re looking at removing programs from the Windows startup routine, using DNS names on the local network, and restoring a vintage keyboard. HTG Explains: Do You Really Need to Defrag Your PC? Use Amazon’s Barcode Scanner to Easily Buy Anything from Your Phone How To Migrate Windows 7 to a Solid State Drive

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Allow a web designer to modify DNS without letting them transfer the domain?

- by PhilCK

We are in the process of having a web designer create a new website for us, but I don't want to give access to the control panel for the domain names (and have no way to limit it, it seems), while at the same time I don't want to be the go between guy for editing the settings. Is there a way or a service for me to point the domains at a 3rd party DNS system, that I can then give access for the web designer, without worrying that he can find my personal info or try and transfer my domain out?

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