All Questions

Tagged with
Filter by
Sorted by
Tagged with
0
votes
1answer
35 views

Bug in Virtualmin (/var/lib/bind/mydomain.com.hosts) causes 'unknown RR type' - prevents Zone loading and DNS propagation [closed]

I had a strange situation the last few days where I was pointing the DNS records from my registrar to my own DNS server and DNS was not propagating. I have done this before successfully and was under ...
0
votes
0answers
14 views

Make bind dns to use external recursive dns when resolving fail

My country block some DNS servers. So main recursive DNS server for our institution fails to resolve some domains. Is it possible to use 8.8.8.8 as fallback on our DNS server in case when own ...
0
votes
1answer
15 views

several instances of bind serving same domain

I am trying to configure two DNS-servers (bind) on 2 linux-servers (server1 and server 2) acting as master for the same domain. server1 is intended as primary server and can resolve a subset of all ...
0
votes
1answer
39 views

Bind DNS Server

enter code hereI am setting up my primary DNS server. The reverse lookup appears to work fine, it is the forward lookups that seems to be the problem. Here are my configurations files. /etc/default/...
1
vote
1answer
30 views

BIND subnet syntax

I am trying to add an entire subnet to BIND, rather than individual IP addresses. For example instead of doing this: example1.test.com IN A 192.168.5.43 example2.test.com IN A ...
0
votes
1answer
394 views

bind 9.9.4 rndc: connection to remote host closed

I have installed bind-9.9.4-72 on CentOS 7.6 and everything seems working i can query my local zone and remote address etc. but somehow rndc not working This is what i did to configure rndc rndc-...
0
votes
2answers
243 views

Linux DNS (named) service

how can I resolve some global web sites (google.com, Facebook.com) to local IP address (for example 192.168.0.1). Anyone can help me ? ; Authoritative data for facebook.com zone ; $TTL 1D @ IN SOA ...
3
votes
1answer
3k views

DNS query response logging

I have configured a CC TLD with bind9. I have successfully configured query logging also. But I can not do logging of query responses. Please have a look of what I have configured for query logging: ...
1
vote
1answer
2k views

traceroute have error bind: Cannot assign requested address

I have the below error: [root@~]# traceroute -s 'publicIP' 8.8.8.8 traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets **bind: Cannot assign requested address** But when i did not enter ...
2
votes
1answer
526 views

How to bind mount from a symlink

This is similar like How do I do a bind mount over a symlink? But here the question is how to do a mount --bind from a symlink? I have /linux-4.13.0 and a symlink linux pointing to that: /linux -> /...
1
vote
1answer
240 views

Reverse DNS fail

I have an installation of Zimbra 8.7 CS multi server Server A: single-server installation (mail.jbv.cl 200.54.163.182) with two domains (jbv.cl and grupojbv.cl) Server B: a second MTA (smtp.grupojbv....
1
vote
1answer
130 views

Why host command works for reverse DNS testing but not otherwise?

I can test my zone files with named-checkzone, and it looks ok. 45.20.10.in-addr.arpa.zone zone file (reverse DNS): $TTL 30 @ IN SOA localhost. admin.example.com ( 2017080101 ;serial 3H ;...
1
vote
1answer
392 views

DNS Unreachable

I was wondering what I did wrong when setting up the DNS Server on RedHat. The DNS Server is to resolve names within an internal network only. Example: server1.test.net will resolve -> 172.16.32.100.. ...
1
vote
0answers
137 views

Problem in receiving answers from bind DNS server

As a part of an experiment I'm running 3 Ubuntu machines in the Create environment. Call them client, server and attacker. Client connected to server. (10.1.1.2 and 10.1.1.3, respectively) Server ...
1
vote
1answer
2k views

Configure BIND and DNSMasq to work together on the same machine

I have prepared a setup, where both BIND9 and DNSMASQ are installed on my machine. The DNS traffic goes to the port 53 where the main DNS server (BIND) handles the requests, checks the data and ...
1
vote
2answers
563 views

Control source IP of local DNS queries to local server?

I have a local DNS server running on my Linux router. I have it configured to only allow requests from my LAN (192.168.1.0/24). I also want the server to be able to query itself for DNS. To that end I ...
0
votes
1answer
650 views

Bind DNS slave for all zone

We have Bind9 running as a slave but i am wondering it doesn't have anywhere statment like type slave in named.conf but i can see its updating entries from master. We only add entries in master and ...
-2
votes
1answer
1k views

What does /var/named mean in this context? [closed]

I read the following response on reddit in response to a question: "What are some problems at work you recently solved?" Hosts are in database, now there are hosts in /var/named. I mean, there were ...
0
votes
1answer
588 views

DNS problem > If I disable recursion, I can't ping my result

I have configured dns server, and if i enable recursion, I can ping and got the result. [root@seobd ec2-user]# nslookup google.com Server: 52.10.197.195 Address: 52.10.197.195#53 Non-...
0
votes
1answer
161 views

Bind RPZ config with domains of various levels

I use RPZ to blacklist some domains and my configuration looks like: *.com A 127.0.0.1 mydomain.net A 127.0.0.1 if i query a whatever domain .com it works correctly giving me 127.0.0.1 let's ...
-1
votes
1answer
922 views

Error in named.conf

I am getting the following error: Starting named: Error in named configuration: zone blk1999.lab/IN: loaded serial 2001062501 zone localhost.localdomain/IN: loading from master file named.localhost ...
1
vote
1answer
826 views

DNS Hostnames - using internal and external zones

Looking for the correct or best practice way of doing this. If you have an external zone called example.com that runs your public mail, web, etc and an internal zone called corp.example.com that runs ...
0
votes
1answer
92 views

Reverse DNS for external DNS server

I have my forward zone configured and now I am writing my reverse zone configuration. I've read through Pro DNS and BIND book and the examples given are if you own a portion of an IP address space a.b....
2
votes
1answer
602 views

TTL values for external DNS records

Upon setting up my zone files, I went back to review my TTL values. The default is set for 24 hours and I have individual TTL values set for each individual record. My thought was NS, MX, and CNAME ...
0
votes
2answers
871 views

Bind doesn't resolve his authoritative zones

I'm currently setting a Bind 9 server on a CentOS 7 system, but I have some kind of unexpected behavior (even though it worked great in my VM). When I want to retrieve records from the zones it is ...
3
votes
1answer
23k views

how to update Records using nsupdate?

We know that we can update a record (its IP) by doing these steps: nsupdate server ns.bar44.com zone bar44.com update delete somehost.bar44.com. A update add somehost.bar44.com. 86400 A 10.10.10.1 ...
4
votes
0answers
372 views

Unable to view mounted directories in a chroot [closed]

Here is a quick description of what I have done: I have a chrooted user (username: clientdev) which I have jailed inside their home directory. This chroot directory is /home/clientdev/ which is ...
2
votes
2answers
3k views

zone delegation in Bind

I have a lot of zones defined in my DNS server. I need to delegate one particular zone to a foreign DNS server and I don't have access to my domain-registrar control panel, currently. Is there a way ...
1
vote
2answers
1k views

In Debian 7, which user does bind9 use to start the daemon?

I have a Debian 7 and a default installation of bind9, I manually changed permission of /etc/bind/named.conf to 000 and remove -u bind flag from /etc/default/bind9 just to see what happens. As far as ...
4
votes
1answer
14k views

TCP buffers keep filling up (Recv-Q full): named unresponsive

Using netstat -an, I set the message that the Recv-Q is full. It is filling up to the rmem_max: Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address ...
1
vote
2answers
1k views

How to allow recursion for only 1 zone?

Is it possible to allow recursion for a single zone in BIND 9.6?
3
votes
1answer
995 views

One non-root user run jetty by port 512 which less that port1024

Customer asks us to create a non-root user to run our web system which bind port 512, less than 1024. When web server(jetty) runs, this is the exception: 2013-10-16 14:49:51.406:WARN::failed Server@...
1
vote
1answer
659 views

DNS zone fallback file

I have the following DNS zone(bind): zone "." IN { type master; file "named.root"; }; If this zone directive cannot resolve the address, how can I "fallback" to another file for the same ...
4
votes
3answers
2k views

Unabled to get rid of BIND 9 chroot

I had installed bind-chroot from yum not long ago, and saw that there were errors in the daily logs from named. Under further investigation, I noticed a directory loop. The named files resided under /...
2
votes
1answer
2k views

How to configure a catch-all CNAME on Ubuntu Linux using BIND 9

I'm trying to set up APE server on my local system. I'm using Ubuntu and BIND and I need to set up a catch-all CNAME record. What would be required for this?