# \#external-monitor **URL:** https://community.f5.com/tag/external-monitor/399.md [Latest](https://community.f5.com/latest.md) · [Categories](https://community.f5.com/categories.md) · [Tags](https://community.f5.com/tags.md) --- ## [How to configure pool to go down if multiple members are down](https://community.f5.com/t/how-to-configure-pool-to-go-down-if-multiple-members-are-down/76517)
**Author:** [@pablo\_juarez](https://community.f5.com/u/pablo_juarez)\ **Replies:** 10\ **Last updated:** [September 10, 2025, 3:46pm UTC](https://community.f5.com/t/how-to-configure-pool-to-go-down-if-multiple-members-are-down/76517 "2025-09-10T15:46:32Z")
Hello community, I have a requirement related to pool health and its impact on BGP announcements. By default, a pool in BIG-IP is considered up as long as at least one member is still healthy. However, in my case, I nee… --- ## [SFTP file existence monitor](https://community.f5.com/t/sftp-file-existence-monitor/64269)
**Author:** [@PinkieCom](https://community.f5.com/u/PinkieCom)\ **Replies:** 1\ **Last updated:** [February 21, 2024, 4:26pm UTC](https://community.f5.com/t/sftp-file-existence-monitor/64269 "2024-02-21T16:26:02Z")
Problem this snippet solves: SFTP file existence monitor How to use this snippet: This monitor definition allows for a monitor to connect to a SFTP server and check for the existence of a file using username/password. … --- ## [create an external monitor with curl to all nodes with different host names](https://community.f5.com/t/create-an-external-monitor-with-curl-to-all-nodes-with-different-host-names/71774)
**Author:** [@veredgfbll](https://community.f5.com/u/veredgfbll)\ **Replies:** 3\ **Last updated:** [March 2, 2023, 6:46am UTC](https://community.f5.com/t/create-an-external-monitor-with-curl-to-all-nodes-with-different-host-names/71774 "2023-03-02T06:46:04Z")
Hi, I would like help with the following scenario. We have a pool that consists of 10 servers. I need a monitor to check the existence of favicon.ico on each of them. The catch - I need to use individual host names.… --- ## [How to create external ltm monitor through tmsh](https://community.f5.com/t/how-to-create-external-ltm-monitor-through-tmsh/48820)
**Author:** [@James\_W](https://community.f5.com/u/James_W)\ **Replies:** 1\ **Last updated:** [February 21, 2021, 10:16am UTC](https://community.f5.com/t/how-to-create-external-ltm-monitor-through-tmsh/48820 "2021-02-21T10:16:19Z")
I am trying to create an external ltm monitor through tmsh but I receive the following error when using this command: tmsh create ltm monitor external somemonitorname - Gives me error “Monitor /Common/somemonitorname pa… --- ## [GTM/DNS Not able to run simple external monitor?](https://community.f5.com/t/gtm-dns-not-able-to-run-simple-external-monitor/47933)
**Author:** [@luevelvet](https://community.f5.com/u/luevelvet)\ **Replies:** 1\ **Last updated:** [November 24, 2020, 3:42pm UTC](https://community.f5.com/t/gtm-dns-not-able-to-run-simple-external-monitor/47933 "2020-11-24T15:42:49Z")
Hello All, I’ve been struggling with this for some time and wanted to see if anyone else had any ideas. Scenario: We have a GTM/DNS VE to perform intelligent DNS resolution for generic hosts (IE, non LTM virtual serv… --- ## [How do I log information from a nodejs based LTM external monitor?](https://community.f5.com/t/how-do-i-log-information-from-a-nodejs-based-ltm-external-monitor/44373)
**Author:** [@Algebraic\_Mirror](https://community.f5.com/u/Algebraic_Mirror)\ **Replies:** 3\ **Last updated:** [July 15, 2020, 8:45pm UTC](https://community.f5.com/t/how-do-i-log-information-from-a-nodejs-based-ltm-external-monitor/44373 "2020-07-15T20:45:51Z")
How can I log something from a nodejs based LTM external monitor? I have my monitor script working, and if I write a message like this, the script regards the monitor as up: console.log("Success!"); Are these messages … --- ## [External Monitor brings down pool instantly](https://community.f5.com/t/external-monitor-brings-down-pool-instantly/52038)
**Author:** [@Shirish\_BasantR](https://community.f5.com/u/Shirish_BasantR)\ **Replies:** 1\ **Last updated:** [March 16, 2020, 2:09pm UTC](https://community.f5.com/t/external-monitor-brings-down-pool-instantly/52038 "2020-03-16T14:09:21Z")
Hi, i am trying to monitor the health of elasticsearch cluster by tracking the number of nodes active in the cluster which will raise syslog with the status. however whenever i attach the external monitor, it is bringi… --- ## [Health monitor to mark pool member up when a ping FAILS (inverse ping health check)](https://community.f5.com/t/health-monitor-to-mark-pool-member-up-when-a-ping-fails-inverse-ping-health-check/61914)
**Author:** [@Jakk127](https://community.f5.com/u/Jakk127)\ **Replies:** 4\ **Last updated:** [August 10, 2019, 10:39pm UTC](https://community.f5.com/t/health-monitor-to-mark-pool-member-up-when-a-ping-fails-inverse-ping-health-check/61914 "2019-08-10T22:39:17Z")
Hello, I am attempting to figure out the best way to create a health monitor that is an inverse of the ICMP monitor-when ping to an IP fails, I want the pool member to be marked UP. When ping to an IP succeeds, I want… --- ## [F5 DNS external monitor](https://community.f5.com/t/f5-dns-external-monitor/51050)
**Author:** [@werner\_verheyle](https://community.f5.com/u/werner_verheyle)\ **Replies:** 12\ **Last updated:** [July 25, 2019, 3:35pm UTC](https://community.f5.com/t/f5-dns-external-monitor/51050 "2019-07-25T15:35:43Z")
Hi , we are using an F5 DNS (v12.1.2) . We are now getting request for doing a DNS loadbalalancing for 2 IP’s in seperate datacenters. (openshift setups) Both IP’s are accessible via https but are running multiple … --- ## [Backup using External Monitor](https://community.f5.com/t/backup-using-external-monitor/59021)
**Author:** [@Srinath\_K\_S](https://community.f5.com/u/Srinath_K_S)\ **Replies:** 2\ **Last updated:** [March 1, 2019, 2:20pm UTC](https://community.f5.com/t/backup-using-external-monitor/59021 "2019-03-01T14:20:17Z")
Hi, We are trying to automate the backup using external monitor.Tried using the below script.Looks like monitor is marking the pool as UP but the content(UCS)is not getting copied over to the destination. Please suggest… --- ## [Radius External Monitor (Python)](https://community.f5.com/t/radius-external-monitor-python/48050)
**Author:** [@AlanTen](https://community.f5.com/u/AlanTen)\ **Replies:** 3\ **Last updated:** [September 24, 2018, 11:47am UTC](https://community.f5.com/t/radius-external-monitor-python/48050 "2018-09-24T11:47:51Z")
This’ll be a long post so get a cup of coffee or whatever your poison of choice is. Sooooo, from all my digging around, Python based External Monitors are something that nobody talks about, has gotten right or maybe t… --- ## [NTP Monitor for 11.x -- With Complete Instructions](https://community.f5.com/t/ntp-monitor-for-11-x-with-complete-instructions/64411)
**Author:** [@Mark\_S\_182830](https://community.f5.com/u/Mark_S_182830)\ **Replies:** 3\ **Last updated:** [August 14, 2018, 8:16pm UTC](https://community.f5.com/t/ntp-monitor-for-11-x-with-complete-instructions/64411 "2018-08-14T20:16:02Z")
Problem this snippet solves: As the F5 LTM does not come with an NTP health monitor, I began my search for one. I found one here, written for 9.x and spent a few minutes getting it to work in 11.5.4. Disclaimer: All th… --- ## [Issue with external monitor using curl on ntlm site](https://community.f5.com/t/issue-with-external-monitor-using-curl-on-ntlm-site/49793)
**Author:** [@FredrikP](https://community.f5.com/u/FredrikP)\ **Replies:** 1\ **Last updated:** [August 9, 2018, 6:00pm UTC](https://community.f5.com/t/issue-with-external-monitor-using-curl-on-ntlm-site/49793 "2018-08-09T18:00:01Z")
I need to create a monitor for our share point environment. I first tried with the built-in HTTPS monitor, but it gave a 401 error. After some investigation it seems there is an issue if the service is using NTLM and I … --- ## [External monitor won't write to file when run](https://community.f5.com/t/external-monitor-wont-write-to-file-when-run/61072)
**Author:** [@David\_Carlson](https://community.f5.com/u/David_Carlson)\ **Replies:** 3\ **Last updated:** [March 16, 2018, 5:05am UTC](https://community.f5.com/t/external-monitor-wont-write-to-file-when-run/61072 "2018-03-16T05:05:30Z")
I borrowed a sample monitor and tried to make some modifications. While troubleshooting I tried to write the contents to a file to see what was actually happening. Nothing was getting written so I replaced all of the var… --- ## [Monitor always show nodes up even if down ...](https://community.f5.com/t/monitor-always-show-nodes-up-even-if-down/49492)
**Author:** [@Letendart](https://community.f5.com/u/Letendart)\ **Replies:** 1\ **Last updated:** [March 7, 2018, 12:04pm UTC](https://community.f5.com/t/monitor-always-show-nodes-up-even-if-down/49492 "2018-03-07T12:04:46Z")
Hi all, I’m wondering what’s wrong in the external monitor I have created. Target is to monitor NTP server status. I get the correct status (UP, DOWN) when I run the batch via SSH on the F5 VM It DOESN’T run via th… --- ## [arg-ex-out using over half of space on partition](https://community.f5.com/t/arg-ex-out-using-over-half-of-space-on-partition/21483)
**Author:** [@Bciesz\_171056](https://community.f5.com/u/Bciesz_171056)\ **Replies:** 3\ **Last updated:** [February 13, 2018, 8:31pm UTC](https://community.f5.com/t/arg-ex-out-using-over-half-of-space-on-partition/21483 "2018-02-13T20:31:46Z")
Hi, I’m getting the error message, that my F5 has 0% free space - this sucks. I’ve noticed that this space is used mostly by /var partition: /dev/mapper/vg--db--sda-set.12--hf1.\_var 3.0G 2.8G 2… --- ## [SFTP External Monitor fails but manual script execution succeeds](https://community.f5.com/t/sftp-external-monitor-fails-but-manual-script-execution-succeeds/46872)
**Author:** [@jpeterson6](https://community.f5.com/u/jpeterson6)\ **Replies:** 3\ **Last updated:** [September 13, 2017, 2:22pm UTC](https://community.f5.com/t/sftp-external-monitor-fails-but-manual-script-execution-succeeds/46872 "2017-09-13T14:22:25Z")
Hi, I’ve been working on setting up an SFTP monitor for some time now. I’m getting really close but there’s one thing left that I’m having a hard time understanding and is just not working as expected. Here is the base… --- ## [External monitor Realsec Cryptosec HSM](https://community.f5.com/t/external-monitor-realsec-cryptosec-hsm/8875)
**Author:** [@Marvin\_129795](https://community.f5.com/u/Marvin_129795)\ **Replies:** 1\ **Last updated:** [August 3, 2017, 5:34am UTC](https://community.f5.com/t/external-monitor-realsec-cryptosec-hsm/8875 "2017-08-03T05:34:53Z")
Hi all, I am trying to monitor a HSM appliance using the external monitor template provided on this link: link text I modified this part in the template so it should send CCCCNC and the response 00000000, I really am … --- ## [External monitor using telnet command with graceful exit](https://community.f5.com/t/external-monitor-using-telnet-command-with-graceful-exit/62528)
**Author:** [@Nath](https://community.f5.com/u/Nath)\ **Replies:** 1\ **Last updated:** [June 26, 2017, 4:25am UTC](https://community.f5.com/t/external-monitor-using-telnet-command-with-graceful-exit/62528 "2017-06-26T04:25:58Z")
Hi Any/Experts, Do you know how I can use telnet script as external monitoring? I have telnet script btw. Thanks. --- ## [Using variables in external Perl monitor](https://community.f5.com/t/using-variables-in-external-perl-monitor/17388)
**Author:** [@Christian\_Laute](https://community.f5.com/u/Christian_Laute)\ **Replies:** 1\ **Last updated:** [May 2, 2017, 12:07pm UTC](https://community.f5.com/t/using-variables-in-external-perl-monitor/17388 "2017-05-02T12:07:23Z")
Gents, I currently use a external monitor to check the JSON output of some webservices. Now I try to make it a little bit more flexible. For example I want to try to replace the string “UP” at if($status eq “UP”) to if(… --- ## [External Monitor for checking proxy authentication and Internet access](https://community.f5.com/t/external-monitor-for-checking-proxy-authentication-and-internet-access/27556)
**Author:** [@NaydenDunkov\_27](https://community.f5.com/u/NaydenDunkov_27)\ **Replies:** 2\ **Last updated:** [June 22, 2016, 1:04pm UTC](https://community.f5.com/t/external-monitor-for-checking-proxy-authentication-and-internet-access/27556 "2016-06-22T13:04:43Z")
Hello Experts, We are load balancing 3 proxy servers and we are trying to construct an external monitor that both checks if an user can authenticate to the proxy and access the internet. So far we’ve managed to get the… --- ## [Notifications via External Monitor](https://community.f5.com/t/notifications-via-external-monitor/46914)
**Author:** [@schmuck](https://community.f5.com/u/schmuck)\ **Replies:** 1\ **Last updated:** [April 8, 2016, 10:07pm UTC](https://community.f5.com/t/notifications-via-external-monitor/46914 "2016-04-08T22:07:33Z")
Hi, I have an external monitor that sends a notification (email) when it fails. I don’t want it failing so I just had it create a file when if fails. If that file doesn’t exist, it will notify. If it does exist, it just … --- ## [How to create a External Monitor?? Please help](https://community.f5.com/t/how-to-create-a-external-monitor-please-help/49645)
**Author:** [@Jinshu](https://community.f5.com/u/Jinshu)\ **Replies:** 1\ **Last updated:** [January 11, 2016, 1:15pm UTC](https://community.f5.com/t/how-to-create-a-external-monitor-please-help/49645 "2016-01-11T13:15:50Z")
Hi, how to create an external monitor for below curl command. Below curl command giving an output “200” when running manually from F5 curl --header "Content-Type: text/xml;charset=UTF-8" --header "SOAPAction:http://myb… --- ## [alert emails as monitor check](https://community.f5.com/t/alert-emails-as-monitor-check/22089)
**Author:** [@vrn\_159121](https://community.f5.com/u/vrn_159121)\ **Replies:** 1\ **Last updated:** [December 13, 2015, 1:59pm UTC](https://community.f5.com/t/alert-emails-as-monitor-check/22089 "2015-12-13T13:59:14Z")
Hi all i have two servers on backend,which will emails me once some services goes down. How can i use those emails to be delivered in F5 (LTM) and use the same email cotent as monitor check. thanks in advance --- ## [Windows-File-Share-Monitor-SMB-CIFS](https://community.f5.com/t/windows-file-share-monitor-smb-cifs/60548)
**Author:** [@B\_Earp](https://community.f5.com/u/B_Earp)\ **Replies:** 1\ **Last updated:** [January 27, 2015, 4:17pm UTC](https://community.f5.com/t/windows-file-share-monitor-smb-cifs/60548 "2015-01-27T16:17:34Z")
Hi, I am trying to use the: DevCentral - An F5 Technical Community In the article the monitor for gtm is detailed as: monitor "smb\_external\_monitor" { defaults from "external" interval 10 timeout 40 probe\_… --- ## [External/Scripted monitor fails](https://community.f5.com/t/external-scripted-monitor-fails/560)
**Author:** [@forsan\_102218](https://community.f5.com/u/forsan_102218)\ **Replies:** 2\ **Last updated:** [September 16, 2014, 2:35pm UTC](https://community.f5.com/t/external-scripted-monitor-fails/560 "2014-09-16T14:35:57Z")
Hi, I need to have a monitor that do a curl on a url witch returns a specific value. I could have done this with the regular http monitor but I need to insert a random number into the URI to avoid caching in the interna… --- ## [issue with external monitor and 2 nodes of big-ip LTM 1600 in cluster](https://community.f5.com/t/issue-with-external-monitor-and-2-nodes-of-big-ip-ltm-1600-in-cluster/13721)
**Author:** [@Dmitry\_Udaltso1](https://community.f5.com/u/Dmitry_Udaltso1)\ **Replies:** 1\ **Last updated:** [June 26, 2014, 10:54am UTC](https://community.f5.com/t/issue-with-external-monitor-and-2-nodes-of-big-ip-ltm-1600-in-cluster/13721 "2014-06-26T10:54:06Z")
Hi all! I’ve faced with strange issue related to the external monitor. We have 2xBig-IP LTM 1600, software version 10.2.4 (Build 771.0) in cluster configuration. I’ve created external monitor for checking nodes status in… --- ## [External monitor "state returned down" response from incorrect IP](https://community.f5.com/t/external-monitor-state-returned-down-response-from-incorrect-ip/13265)
**Author:** [@FraserK\_151071](https://community.f5.com/u/FraserK_151071)\ **Replies:** 1\ **Last updated:** [June 17, 2014, 2:56pm UTC](https://community.f5.com/t/external-monitor-state-returned-down-response-from-incorrect-ip/13265 "2014-06-17T14:56:22Z")
I have a combined GTM/LTM system running BIG-IP Version 11.4.1 Build 608.0 Final (Let’s call this Device 1). I have several pools of virtual servers in the Global Traffic component, and I have created an external moni… --- ## [External Monitor with Disable Mode](https://community.f5.com/t/external-monitor-with-disable-mode/53065)
**Author:** [@Stefan\_Klotz](https://community.f5.com/u/Stefan_Klotz)\ **Replies:** 2\ **Last updated:** [May 9, 2014, 10:02am UTC](https://community.f5.com/t/external-monitor-with-disable-mode/53065 "2014-05-09T10:02:50Z")
Hi there, we are using an external monitor script with a curl command including NTLM-authentication. The default HTTP WebGUI monitor just provides basic authentication method, but there you can also define a “Receive Dis… --- ## [External Health monitor](https://community.f5.com/t/external-health-monitor/37807)
**Author:** [@mmelber14\_62984](https://community.f5.com/u/mmelber14_62984)\ **Replies:** 6\ **Last updated:** [April 4, 2014, 5:37am UTC](https://community.f5.com/t/external-health-monitor/37807 "2014-04-04T05:37:20Z")
Hi, I need some assistance creating shell script for use in a external health monitor. I do to have much experience in creating scripts so if someone could either assist or point me to a good reference that would be a… [Next page](https://community.f5.com/tag/external-monitor/399.md?match_all_tags=true&page=1&tags%5B%5D=external-monitor)