Re: [CentOS] dnsmasq centos 7
On 10/31/2020 6:17 AM, Jerry Geis wrote: I tested with "host laptop.w530" and I get unresolved (expected). If I add "nameserver 192.168.1.8" (my computer) to top of /etc/resolv.conf and do "host laptop.w530" I get 192.168.1.105 - so seems to be working. The canonical DNS testing tool is dig. It displays the outbound query packet and the reply, in great detail. You'll find it in the bind-utils package. ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] dnsmasq centos 7
On Oct 31, 2020, at 1:22 PM, Strahil Nikolov via CentOS wrote: > > Are you sure you have opened 53/udp ? Good call, but you left out the “how”: $ sudo firewall-cmd --add-service dns $ sudo firewall-cmd --add-service dns --permanent Without the second command, it affects the runtime firewall only, and without the first, it doesn’t take effect until the next reboot. To the OP: DNS needs both TCP *and* UDP service on port 53. Your telnet test is incomplete, and in fact covers only some of the lesser-used code paths in DNS servers. (Zone transfers, etc.) Most DNS service needs UDP only, and expects that to work; there is no fallback to TCP if UDP fails. ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] dnsmasq centos 7
Are you sure you have opened 53/udp ? Best Regards, Strahil Nikolov В събота, 31 октомври 2020 г., 16:15:10 Гринуич+2, Jerry Geis написа: Hi Niki, Thanks good article... I was close in what I did - but still not working. I made this config file in /etc/dnsmasq.d more lsi.conf domain-needed bogus-priv interface = eth0 expand-hosts local = / LayeredSolutionsInc.com / domain = LayeredSolutionsInc.com # The address 192.168.1.14 is the static IP of this server # You can find this ip by running ifconfig and look for the # IP of the interface which is connected to the router. listen-address=127.0.0.1 listen-address=192.168.1.14 bind-interfaces # Use open source DNS servers server=8.8.8.8 # Create custom 'domains'. # Custom 'domains' can also be added in /etc/hosts address=/LayeredSolutionsInc.com/192.168.1.14 I restart dnsmasq of course... The resolution works on the same machine - but not for any other linux box. I add the nameserver 192.168.1.14 to the /etc/resolv.conf of that machine - but resolution does not work. Thoughts? (note I moved from my original 192.168.1.8 to 192.168.1.14 machine) - same issue resolves locally but not for other machines. Jerry ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] dnsmasq centos 7
Hi Niki, Thanks good article... I was close in what I did - but still not working. I made this config file in /etc/dnsmasq.d more lsi.conf domain-needed bogus-priv interface = eth0 expand-hosts local = / LayeredSolutionsInc.com / domain = LayeredSolutionsInc.com # The address 192.168.1.14 is the static IP of this server # You can find this ip by running ifconfig and look for the # IP of the interface which is connected to the router. listen-address=127.0.0.1 listen-address=192.168.1.14 bind-interfaces # Use open source DNS servers server=8.8.8.8 # Create custom 'domains'. # Custom 'domains' can also be added in /etc/hosts address=/LayeredSolutionsInc.com/192.168.1.14 I restart dnsmasq of course... The resolution works on the same machine - but not for any other linux box. I add the nameserver 192.168.1.14 to the /etc/resolv.conf of that machine - but resolution does not work. Thoughts? (note I moved from my original 192.168.1.8 to 192.168.1.14 machine) - same issue resolves locally but not for other machines. Jerry ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] dnsmasq centos 7
Le 31/10/2020 à 14:17, Jerry Geis a écrit : > HI I setup dnsmasq on my computer. I tested with an entry in /etc/hosts for > laptop.w530 > > I tested with "host laptop.w530" and I get unresolved (expected). > If I add "nameserver 192.168.1.8" (my computer) to top of /etc/resolv.conf > and do "host laptop.w530" I get 192.168.1.105 - so seems to be working. > > Then I goto another machine, add the "nameserver 192.168.1.8" to > /etc/resolv.conf and do the same "host laptop.w530" and it does not resolve. > > I can "telnet 192.168.1.8 53" to my machine and I get a response. > > Am I missing something to have "other" machines ask my machine for name > resolution ? Here's a detailed blog article I wrote about Dnsmasq on CentOS 7: https://blog.microlinux.fr/dnsmasq-centos-7/ It's in French, but the Linux bits are universal. :o) Niki -- Microlinux - Solutions informatiques durables 7, place de l'église - 30730 Montpezat Site : https://www.microlinux.fr Blog : https://blog.microlinux.fr Mail : i...@microlinux.fr Tél. : 04 66 63 10 32 Mob. : 06 51 80 12 12 ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] dnsmasq centos 7
HI I setup dnsmasq on my computer. I tested with an entry in /etc/hosts for laptop.w530 I tested with "host laptop.w530" and I get unresolved (expected). If I add "nameserver 192.168.1.8" (my computer) to top of /etc/resolv.conf and do "host laptop.w530" I get 192.168.1.105 - so seems to be working. Then I goto another machine, add the "nameserver 192.168.1.8" to /etc/resolv.conf and do the same "host laptop.w530" and it does not resolve. I can "telnet 192.168.1.8 53" to my machine and I get a response. Am I missing something to have "other" machines ask my machine for name resolution ? Thanks, Jerry ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
