All Questions
26
questions
0
votes
0
answers
118
views
CentOS Stream 9 Name or service not known frequently
I have a computer running CentOS Stream 9 as server. It is connected to my router directly by wire. It is working well except getting 'Name or service not known' frequently (like about 10 mins once)
...
0
votes
0
answers
32
views
*** Can't find 22.78.224.10.in-addr.arpa.: No answer
I really need some assistance. I have set up a DNS server with Centos 6.10. When I test my server's address, I get an error.
Here are my configurations.
#named.conf
cat /etc/named.conf
//
...
0
votes
2
answers
3k
views
how to configure centos against new dns server and port
let's say I installed on my local machine a dns server with port 5353
how to configure it as other dns on /etc/resolv.conf
my resolv.conf looks like this
nameserver 14.2.3.1
nameserver 14.2.3.2
How ...
- 103
0
votes
0
answers
416
views
Docker containers unable to resolve dns on CentOS 7
it's my first post here, let's hope i'll do ok!
I'm migrating to a new vps, and it runs on CentOS Linux release 7.9.2009 (Core), and unfortunatelly the host wont allow me to change to a distro that i'...
1
vote
1
answer
392
views
Why I get refused when connect my remote host with domain name using ssh?
I added two A DNS records on my domain name whose HOSTNAME is @ and www,
I'm wondering why I get refused when use davidzhu.xyz
$ ssh [email protected]
ssh: connect to host davidzhu.xyz port 22: ...
- 33
0
votes
1
answer
1k
views
I can send E-Mails but not receive E-Mails.. | CentOs - Docker - poste.io
I run a Server on CentOs 7 with FirewallD, on there i run Docker with Poste.io Mailserver. (SQLite, Dovecot, NGiNX, Haraka, RSPAMD, ClamAV, Roundcube, Z-Push)
Soo my problem is i can´t receive E-...
-1
votes
1
answer
534
views
nslookup can resolve but ping cannot
I noticed some strange behaviour when setting up a web server on a local network. when i tried typing the hostname into a browser it redirected me to a url on the internet, so naturally i tried ...
- 149
3
votes
2
answers
2k
views
unbound DNS: can't list domains via nslookup
I configured unbound DNS on a CentOS server and set a local-zone in it.And I have turned off the firewall on the server.
On Windows I tried to use the nslookup command to verify DNS records in unbound ...
user1044114
0
votes
2
answers
9k
views
Can't start Bind open: /etc/named.conf: permission denied - Centos 7
so I'm really new on this and was following this tutorial to set up bind, and up to 4:50 I was having no problems, I could ping, use nslookup and had internet connection with the dns server, then we ...
2
votes
1
answer
2k
views
Receiving error when trying to use ~/.ssh/config "ssh: Could not resolve hostname"
I have scoured the internet for a solution, but no solution is working for me!
I am trying to create a bastion server with a public AWS EC2 instance that will connect to a private EC2 instance.
...
- 21
1
vote
0
answers
619
views
Docker add custom DNS server
I have a DNS server running on a CentOS 7 machine at 10.8.0.1. On this machine, I have some docker images running on a subnet of 10.8.1.0/24, without masquerading. I'd like the docker images to be ...
0
votes
1
answer
509
views
Delegating a Reverse DNS Zone
I am using Bind 9 under CentOS 7.
My company's domain name is mycorp.com.
I administer mylab.mycorp.com.
IT forwards (not delegates) queries for mylab.mycorp.com to my nameserver ns1.mylab.mycorp....
- 1,029
2
votes
1
answer
3k
views
What is correct approach to maintain resolv.conf on CentOS 7
On Ubuntu I use the resolvconf utility to update & maintain /etc/resolv.conf
On CentOS 7, the resolvconf utility doesn't appear to exist.
What is the correct way to maintain /etc/resolv.conf ...
- 31
0
votes
2
answers
696
views
Yum results in centos are incomplete?
I have recently installed the centos and i have updated and upgraded the packages and all went pretty good.Now the real problem is whenever i use yum the default package manager to search the reults ...
-2
votes
1
answer
779
views
How do I create rDNS (Reverse DNS)
How to create rDNS (Reverse DNS), I am using Centos 7.0 and I need to create rDNS for 50 IP's and domain.
Can you please guide me how can I create.
Example.
Example.com - xxx.xxx.xxx.xx0
Example....
