New blog post: High Availability DNS and DHCP in the homelab
Apologies in advance, this one is quite lengthy....
https://www.beyondwatts.com/posts/high-availability-dns-and-dhcp/
Wenn wer Ärger mit dem #NetworkManager im #AccessPoint Mode hat oder #DHCP, #DNS upstream, DNS port usw. individuell einstellen will...
...ich kann jetzt qualifiziert helfen...
Kein Witz - ich habe sowohl im NetworkManager als auch #dnsmasq jede verfluchte Zeile im Code gelesen und verstanden die das Zusammenspiel beider Dienste im AP-Mode betrifft...
#piSpot...
(minimalistischer, mobiler #HotSpot #WLAN #WWAN #ETHERNET #VPN #Tor #AdBlock #ChildProtection #RaspberryPi #Raspberry #PiZero2)
Microsoft's June Patches Unleash a Cascade of Critical Failures
#CyberSecurity #Microsoft #PatchTuesday #WindowsServer #DHCP #SysAdmin #TechNews #InfoSec #ZeroDay #Vulnerability #ITPro
EdgeRouter 4 under OpenBSD with Failover WAN https://www.undeadly.org/cgi?action=article;sid=20250516062907 #openbsd #octeon #networking #router #edgerouter #wan #failover #ifstated #nat #dhcp #dns #libresoftware #freesoftware
For those that run a homelab with DNS and DHCP, are you using IPv6? I'm running BIND and debating if I need to configure IPv6 just to future-proof myself. I'm not seeing any issues, at least any that I notice.
Also, I know little about IPv6, so I admit I need to do some learning.
Pi-hole erhält umfangreiches Update auf Version 6.1 mit zahlreichen Verbesserungen
Die Open-Source-Software Pi-hole bekommt mit Version 6.1 ein umfangreiches Update.
https://www.apfeltalk.de/magazin/news/pi-hole-erhaelt-umfangreiches-update-auf-version-6-1-mit-zahlreichen-verbesserungen/
#News #Services #Core #CPUAuslastung #DHCP #DNSBlocker #Docker #FTLEngine #Netzwerk #OpenSource #Pihole #PiholeUpdate61 #RaspberryPi #ReverseProxy #SynologyNAS #Weboberflche #ZweiFaktorAuthentifizierung
Pi-hole erhält umfangreiches Update auf Version 6.1 mit zahlreichen Verbesserungen
Die Open-Source-Software Pi-hole bekommt mit Version 6.1 ein umfangreiches Update.
https://www.apfeltalk.de/magazin/news/pi-hole-erhaelt-umfangreiches-update-auf-version-6-1-mit-zahlreichen-verbesserungen/
#News #Services #Core #CPUAuslastung #DHCP #DNSBlocker #Docker #FTLEngine #Netzwerk #OpenSource #Pihole #PiholeUpdate61 #RaspberryPi #ReverseProxy #SynologyNAS #Weboberflche #ZweiFaktorAuthentifizierung
So I recently used a #sledgehammer where a #scalpel was needed.
I've got an #HP DL80 Gen9 with the iLO license, but without the #FlexibleLOM card... so to access the iLO I have to have an ethernet cable plugged into the first ethernet port.
Problem is, no matter what I tried in #Webmin or #NetworkManager, every reboot would re-enable that port... which would then get a IP via DHCP (even when I'd disabled it in nm...), which would mean #Zabbix would pick it up as a client and add it.. meaning every time a disk got a little "backed up", I'd get two alerts, and this machine has 12 very old SATA drives in it.
Tired of messing with the damned thing, I finally got out the sledgehammer....
....and blacklisted HP's #OUI from the #DHCP server.
No IP, no extra client created in Zabbix, and only the normally-annoying amount of alerts.
I'll #fsck with it for real, later...
Anyone out there moved from isc's dhcpd to the newer kea?
I think I'll give it a go.
Is anyone using Kea for #dhcp? Looking to ask a couple questions... Thanks!
ICYMI: Ali Imran Nagori looks at the automatic installation method rolled out with Ubuntu 22.04, which borrows some tools from the cloud configuration toolbox
https://www.linux-magazine.com/Issues/2024/288/Ubuntu-autoinstall-with-cloud-init
#Ubuntu #cloud #YAML #TFTP #OpenSource #dnsmasq #DNS #DHCP #FOSS
If you were setting up your home #network, and wanted to make sure that important, foundational, yet lightweight services Just Kept Going, how would you run them?
For example, I'm thinking about #DNS and #DHCP for the hosts that actually provide the more user-visible network #services ... so "run them as #VM/#containers on your #homelab hosts" isn't a viable option: what provides the DNS *for* those hosts?
I quite like the idea of a pair of low-cost & low-spec mini-PCs.
What would you choose?
RFC 9663 just published:
'Using DHCPv6 Prefix Delegation (DHCPv6-PD) to Allocate Unique IPv6 Prefixes per Client in Large Broadcast Networks'
I have a fresh Ubuntu 24.04 desktop with DHCP and it adds another nameserver to its network config #networking #dns #2404 #dhcp
It's a minor issue that we had with Dnsmasq, but we've run into this issue and documented it, so you don't have to
"Dnsmasq does not start because port 53 is busy"
https://blog.zero-iee.com/en/posts/dnsmasq-startup-error-with-systemd-resolved/
@mwl I’m reading Absolute #FreeBSD and thought I’d ask you for your current opinion on #DHCP for servers: when you wrote the book you didn’t seem excited about it, but - with few exceptions - it is a convenient way to keep an updated list of server IP addresses, to ensure DNS stays up-to-date and to propagate some network changes across a fleet of computers: replacing a router or DNS servers comes to mind. The obvious drawbacks are if DHCP doesn’t work or is maliciously overridden.
Wie kann ich in /etc/network/interfaces in #Debian es einstellen, dass auf allen Interfaces #DHCP gemacht wird, auch wenn ich jetzt noch nicht weiß, wie das Interface in Zukunft heißen wird?
Jetzt steht da halt:
iface enp1s0 inet dhcp
Aber auf einer anderen Hardware heißt das Ding ja vielleicht eth0 statt enp1s0...
Also was tun?
Brauch ich ein Startupscript, dass die Config generiert?