What is the replacement command for nslookup?

What is the alternative to nslookup in Linux?

The command in Linux is hostname.

If you need it in the command-line use hostname -f ip.address. And don't use the "." or "." tricks to make hostnames point to themselves.

Nslookup is not a standard command for linux. See if your distro has dnsmasq (also not a standard command in Linux). Here's a good page explaining how dnsmasq works:
As for using hostname instead of nslookup, that's not really an alternative. Both will work in the same way. When you type nslookup you are querying a DNS server. The difference is that you can see what your DNS server thinks is the right IP address and you can check whether the server is even responding. When you type hostname the system looks up your DNS server to find out the IP address and then sends the request to the server. It's just not as interactive. You won't get any errors from a lookup on hostname.

What is the replacement command for nslookup?

nslookup is a daemon that is used to get records from dnsmasq or hosts files.

and then the user may use it in an application.
so if I want to have a singleton service for such a task, what's the name of this component? how about nsdutil

nslookup/dig/host/etc. Mishari: It isn't always useful to do what you're suggesting, because in some circumstances it's better to set up a network interface as the gateway (which you can do by editing /etc/network/interfaces). Mishari: but sometimes the problem is solved using a different method. does anyone know why my ubuntu 18.10 install is unable to run sudo when its installed? nevermind, got it. TJ-, you're right of course. That's what I need. A service that will respond with answer to "nslookup ".
I found a service called "dnsforwarding", which does something similar, but is not a daemon. I haven't tried it yet, and haven't tried to configure it, I'm more curious about it's availability.
Mishari: right, it can't be turned off (you'd remove the .service file) but it won't be started automatically when an interface is brought up Mishari: "dnsmasq -u " does what you want; it runs it as a single instance as configured. Mishari: but if it reports the queries it has made it won't be suitable for long-running services you want to be available 24x7. hmm, but there must be a way for me to just turn it on when I need it, for debugging my application. that's what I want to find out. Mishari: you can have it start up on boot and have a startup script or systemd unit to control it. It's fairly simple, just read the help manual.
thanks, I'll try that out.

How to use nslookup in CentOS 7?

You may have a problem using DNS query of the form host xxx.

X in CentOS 7. It seems that an alias dns-hosts not exist. However, if you type dig it shows all resolved information. I'm interested in using nslookup. In order to fix this problem, we must add a file called /etc/dnsmasq.conf and add the configuration to it. Then, we need to run the service reload to activate the changes.

The file you need to add is: /etc/dnsmasq.conf After editing the file, you can copy the file contents below to /etc/dnsmasq.conf file. The important thing is that the file contains the lines which are copied from the following file.

# The base configuration file for /etc/dnsmasq.conf # Created by Siva Sarma Contents of /etc/dnsmasq.conf file You must use the lines below in /etc/dnsmasq. Now you need to restart the service. If you edit the configuration file via vi /etc/dnsmasq.conf, then run vi command and save. If you want to save, you use ESC. If you press I command to enter insert mode, then write vi and then ESC followed by Save E. Finally, close the file. And it's completed.

Add the following lines into /etc/dnsmasq.conf and then run the service reload command.

Nslookup will show a list of host with the IP and PTR address. In this way, we can easily resolve the host names or IP addresses. It's simple and easy to use.

In order to prevent your computer from automatically update, you can set up a cronjob.conf /etc/dnsmasq.bak
Sudo /etc/init.d/dnsmasq reload # /etc/init.d/dnsmasq reload # 1>/var/log/test.log How can I change the name servers?