dns
165 TopicsF5 upgrades
We are upgrading F5 tenants from 17.1 to 17.5. We have Two R-series pairs at each data center ( ex:main and colo) Within the data center, they are in HA active standby and the 4 are in a GSLB group . Each host has one tenant During the upgrade process, I disabled GTM Sync on the F5 that is going to be upgraded. Is it recommended? I plan on having traffic moved to this active box at ex colo from the other data center main, I won't be making any config changes . After the applications move to this side, LTM pools show up on this side and global availability will have the upgraded side up. just want to make sure, if that is disabled, do we need to leave them disabled and sync them after all the 4 F5s are upgraded? during this process, can we make changes with the data center on LTM pools? Thank you111Views0likes2CommentsDNS/GTM health monitor big3d timeout because of alias config
Hello Everyone, I was testing some experimental config for DNS/GTM where the health monitor does not monitor the pool members but a specific IP address configured in the "alias" and it does not work as the error says bigd timeouts to report the state. For LTM http/https health monitors the "alias" option works but not for gtm/dns. I think I discovered a bug as this is rare use case to not monitor the pool members themselves. I have changed the ip to 1.1.1.1 just for the picture screenshot 😄 Also in the logs after gtm and big3d is enabled I see the logs below and too bad that F5 DNS does not have monitor debug like LTM to just enable a debug for a monitor and not the entire box. ----- Will not probe x.x.x.x:80 ( in DC /Common/niki-dc because will be done by other GTM (<unknown>:<unknown>) Unable to identify which gtm server represents the local device61Views0likes1CommentF5 DNS combine all zones into one top-level zone
We are migrating our F5 DNS(GTM) towards a new automated setup using AS3, but I noticed we forgot the create a top-level zone in the zone runner configuration. So now all our WideIPs already deployed have their own zone file with the A-records of the pool members. We can create a new top-level zone which should cover all our WideIPs but I am looking for away to transfer all the already existing A-records into this new top-level zone so we delete all the wideip specific zones. Is there an option to re-group all the records into this top-level zone?88Views0likes3Commentsnsupdate to modify zone in specific views.
we have zone name example.com and we have 2 view (external and internal) so in /var/namedb/ we have zone file db.external.example.com and db.internal.example.com . How can we use nsupdate to modify zone in specific views? because we can't seem to specify view in nsupdate script. and we can't specify "zone internal.example.com" in nsupdate script too147Views0likes4CommentsF5 DNS Generic Host
I am trying to create a few generic hosts for a POC, but having issues with them being monitor failed. I created a new server named RANCHER-POC-11 and gave it an ip address of 10.4.65.11, this has a monitor of https assigned to it. I then created a virtual server with the same ip address and port 443 as well as the https monitor. The Server and Virtual Servers are both red triangles. I performed a packet capture and I don't see that the gtm is even attempting to monitor. I put a specific route in the network and pointed to the GW and now if I initiate a connection from the CLI I see logs in our monitoring but only if I do the connection manually. This is the first generic host we have tried to deploy as the rest of the virtual servers/pools are pulled from the LTM's and this service is not behind the LTM. Any suggestions would be appreciated. Thanks, Joe207Views0likes3Commentswhat will happen if local gtm/dns disable the sync with other gtm/dns sync group?
Hi, we want to temporarily remove local gtm/dns from corporate global gtm/dns sync group. What will happen to local dns service? what is the impact? will some applications be marked as down if the application servers are located in other region and learned via gtm sync group? we have gtm/dns in three different regions. Can anyone please advise? thanks in advance!Solved96Views0likes2CommentsDNS Request to VS?
Hello, we found on our Firewall lots of DNS-Requests from the floating IP to some VS (with ASM-Policy). Now we want the Firewall to only allow DNS-Requests to the known DNS-Servers. Question: is this normal behaviour? The BIGIP has DNS-Resolver configured. Where can I check the Config-Utility? Thanks for any hint. Karl73Views0likes1Commentcross platform migration issue
Hi, we want to migrate the config from iseries 4K to rseries 5k . The current software version on iseries is 13.x.. I tried to run bigip v15.x on rseries, then export the config from iseries and import it into rseries, but not successful, there were some errors. Can someone please advise how should I do to make the migration successful? Thanks in advance!182Views0likes2Comments