fqdn Pool member as IP VS in the same device or in the same 1 IP management or same box
Hii Everyone, I have a VS, snat automap, and using fqdn member that resolve dns in IP (10.1.1.x). Can I using the fqdn member (10.1.1.x), as IP VS in the same box or same ip management?? it can works ? If can'nt, what is the reason ?? Thankyouu so much ....
Hostname based Load balancing (prior to 11.6.0)
Problem this snippet solves: This code is initially developed to provide a forward proxy to Apple Push Notification Services. This code can easily be customized to load balance requests to any resolved FQDN. Several issues are solved here : Forward proxy for several Apple APNs services like gateway.push.apple.com and feedback.push.apple.com Hostname based loadbalancing for BIG-IP under version 11.6.0 Source address persistence using tables (because when using the node command, persistence settings doesn't works) How to use this snippet: Installation This irule can be installed on multiple VS at the same time or on a wilcard VS. During several tests, we configured the following Virtual Server settings : ltm virtual vs_wildcard_apns { description *.push.apple.com destination 192.168.20.200:any ip-protocol tcp mask 255.255.255.255 profiles { fastL4 { } } rules { irule_apns } source 0.0.0.0/0 source-address-translation { type automap } translate-address enabled translate-port disabled vs-index 9 } Code : when RULE_INIT { set static::nameserver "8.8.8.8" set static::max_age 1800 } when CLIENT_ACCEPTED { switch [TCP::local_port] { "2195" { set host "gateway.push.apple.com" } "2196" { set host "feedback.push.apple.com" } default { log local0. "virtual=[virtual], src=[IP::client_addr], dst=$dest:[TCP::local_port], action=reject, reason=\"Request not allowed\"" reject return } } # resolve the hostname using table or dns lookup if { [table lookup "$host.[IP::client_addr]"] ne "" } { set dest [table lookup "$host.[IP::client_addr]"] log local0. "virtual=[virtual], src=[IP::client_addr], dst=$dest:[TCP::local_port], action=resolve, reason=\"from table\"" node $dest [TCP::local_port] } else { set dest [lindex [RESOLV::lookup @$static::nameserver -a $host] 0] log local0. "virtual=[virtual], src=[IP::client_addr], dst=$dest:[TCP::local_port], action=resolve, reason=\"from dns\"" if { $dest ne "" } { table set "$host.[IP::client_addr]" "$dest" indefinite $static::max_age node $dest [TCP::local_port] log local0. "virtual=[virtual], src=[IP::client_addr], dst=$dest:[TCP::local_port], action=forward" } else { log local0. "virtual=[virtual], src=[IP::client_addr], dst=$dest:[TCP::local_port], action=reject, reason=\"DNS resolution failed\"" reject return } } } when CLIENT_CLOSED { table delete conn:[IP::client_addr]:[TCP::client_port] } Tested this on version: 11.3iRule for combination of FQDN pool member and route domains
I'm trying to configure an FQDN pool member for consuming a web service. The FQDN changes it's IP addreses resolution periodically. I configured the pool member inside its non-default Partition and Route Domain. That means the pool member is not in the default 'Common' partition and not in the default route domain '0'. As soon as I created the FQDN pool member, I noticed that the dynamically created node, created as a result of the FQDN resolution IP, was assigned the default route domain '0'. I opened a case with support to get some clarification on this and got the following response: "Unfortunately, Route domains are not supported with fqdn. We have logged in a Request For Enhancement, this, however, has no release date as of yet. 522465 RFE: Route domain support for FQDN nodes The most I can offer you is to request that this service request be added to that RFE. This will let our product development team that another customer is requesting this. Please let me know if you are interested in this." After doing some research I found the following iRules on Codeshare: https://devcentral.f5.com/s/articles/dynamic-ephemeral-node-fqdn-resolution-with-route-domains-with-dns-caching-irule-1148 https://devcentral.f5.com/s/question/0D51T00006j3E1I/fqdn-node-with-route-domains I've tried both iRules on versions 12.1.2 and 14.1.2, but am getting different TCL errors. Has anyone been able to get the combination of FQDN pool members with a non-default route domain?
Possible to specify FQDN for new node address via iControl and Powershell?
Product : Virtual BigIP LTM ProductVersion : 11.6.0 PackageVersion : Build 5.13.429 - Thu Jul 23 16:58:10 PDT 2015 PackageEdition : Engineering Hotfix HF5 Hi, Working on an automated solution. I am able to successfully create new nodes using iControl SnapIn and PS. However, the API only allows me to use IP addresses when creating the nodes, and not a fqdn (when I try it throws invalidargument exception). The author of the snapin also says an IP address is required. Here is a snippet of the powershell code I use: This provides all of the cmdlets we need Add-PSSnapin iControlSnapin Initialize-F5.iControl -Hostname $LTMName -Username $LTMUserName -Password $LTMPassword (Get-F5.iControl).LocalLBNodeAddressV2.create(@($NodeName),@($NodeAddress),@(0)) I thought about changing it after it is created, but the API documentation states "...A set_address method is not supported." Any idea on how to accomplish this via iControl? Will I be forced to use a different solution? Thanks, pimyLoad Balance to FQDN Not Working
Hi All, I have an environment that is set up on my F5 using a combination of Rewrite Profiles and iRules to achieve a reverse proxy setup. This works well. I have a request to add an additional rewrite mapping but this time they want it to load balance to a FQDN in the cloud. The F5 is set up for DNS and I can add an FQDN pool which populates the ephemeral nodes, but these show down and I can never get them to come up despite DNS resolving them correctly. I have the URL rule added to the existing rewrite profile (client: /api/search/ server: /search/ and then an iRule that states: elseif { [string tolower [HTTP::uri]] starts_with "/api/search" } { pool ProxyPass_Pool_4 But I can't get the FQDN pool to function. What am I missing? Thanks!
Configure on ASM - IIS Virtual Host Website
I have to configure an IIS Virtual Host Website on ASM. The website gives error when accessed over IP of the server On ASM I created a new Node with FQDN. Created a Pool with port number and then virtual server. But when I access the virtual server IP, it is giving the same error which I get if I try to access the website using webserver's IP
How often F5 query IP of FQDN pool member?
Hi When we config pool member as FQDN. It will show IP which is result from F5 lookup. Question is how often F5 resolve IP for those FQDN name? Example. When you set FQDN as cloud elastic hostname. F5 will resolve and get it Dynamic IP then map as pool member. Problem is we don't know when those Dynamic IP is change. So if F5 didn't resolve IP often. When dynamic IP is changed, It's may cause a downtime. Thank you
FQDN Pool member failing becuase previously added by IP
I ran into an interesting problem on 12.1.2 and was wondering if this is expected behavior, and if so, why? I had a pool that had a member(node) added by IP with a basic TCP monitor, which worked. I then had a requirement to point to this node by FQDN. After creating the new FQDN pool with a basic TCP monitor, I noticed it would not go green, with /var/log/ltm showing member not found error. This made no sense to me, since I could resolve the FQDN from the CLI and that fact that I was looking at the member as green in the original pool. To resolve the issue, I deleted the node previously created by IP. Once I did that and forced a new resolution, it worked! Any thoughts? If nothing else, hopefully this helps someone else out.
