I have a few recursive servers running Ubuntu 20.04 and pdns-recursor version 4.2.1. From about Feb 2023 there has been a sudden spike in memory usage on all these servers which require server reboots because restarting the service does not help. No configuration changes were made to cause this issue. I have tried to upgrade … Read More “pdns-recursor memory leak?” »

submitted by /u/elliottinvent [link] [comments] Powered by WPeMatico

Hello, everyone. First, I’d like to apologize if I am in the wrong subreddit. So my professor gave me these tasks: Install and configure a DHCP server and. a. Set subnet 192.168.20.0/24 b. Set the gateway to 192.168.20.1 c. Set IP reservation 192.168.20.20 for Ubuntu-Desktop client d. Set up the DHCP server to provide clients … Read More “Need help configuring BIND9.” »

submitted by /u/SafeDNS [link] [comments] Powered by WPeMatico

I currently have the TTL for www.example.com set as 14400. Is 14400 seconds too much or should I reduce it to 1 second? I am running my own name servers using Bind9 on HestiaCP control panel. submitted by /u/Allah19122022 [link] [comments] Powered by WPeMatico

I joined a team last year that has been using hosts files for a long time to work around DNS challenges. I’m hoping to move us away from using hosts files. We have a mix of Windows and Linux servers. Our company laptops are Windows. There are 5 zones I’m aware of that we need … Read More “No More Hosts Files” »

Has anyone ever had an issue with applying an update-policy using a TSIG key against a zone and not having servers able to update DNS records upon a failover of the server from one to another? I have SQL servers that failover from one to another automatically when needed. During this process it needs to … Read More “Help with updates” »

we have been on DynDNS for years, but that is ending at end of the month, so looking at moving our DNS somewhere else. one of our web guys mentioned amazon route53, looks pretty cool. any one using it, or have experience with it? submitted by /u/clarksavagejunior [link] [comments] Powered by WPeMatico

Heyy there, a beginner here. I have a domain, I will call “domain.com” for this post. My Webserver is running on Plesk with the basic mail application you get while using Plesk. I can send Mails to my Gmail and other mails, but I can not receive Mails from both Gmail and workmail. I get … Read More “Can’t receive e-mails from out of my domain.” »

I installed and configured Bind9 and thought it had been working correctly, but when I check the status I’m seeing: steve@ncodm2:/etc/bind$ sudo systemctl status bind9 ● named.service – BIND Domain Name Server Loaded: loaded (/lib/systemd/system/named.service; enabled; vendor preset: enabled) Active: active (running) since Tue 2023-05-02 22:50:51 UTC; 5s ago Docs: man:named(8) Process: 1470 ExecStart=/usr/sbin/named $OPTIONS … Read More “Set DNS/Bind9 with no forwarding outside of local network” »