# Unable to register client with server **URL:** \ **Category:** PMM 2.x\ **Created:** [October 27, 2022, 1:47pm UTC](https://forums.percona.com/t/unable-to-register-client-with-server/18213 "2022-10-27T13:47:42Z")\ **Posts on this page:** 18\ **Page:** 1
**Author:** ![hkdware](https://avatars.discourse-cdn.com/v4/letter/h/e495f1/32.png) [@hkdware](https://forums.percona.com/u/hkdware)\ **Post date:** [October 27, 2022, 1:47pm UTC](https://forums.percona.com/t/unable-to-register-client-with-server/18213/1 "2022-10-27T13:47:42Z")
I am attempting to install PMM 2.31.0. I get to the point where I am attempting to register the client with the server and I always get and error. I should mention that my postgresql database, the pmm server and pmm client are all running on the same server. I should also mention when attempting to bring the [https://XX.XX.XX.XX](https://XX.XX.XX.XX) web page it fails. However, using [http://XX.XX.XX.XX](http://XX.XX.XX.XX) succeeds and I can log into PMM using the admin/admin username and password. Below is a listing of the steps I took to register the client: ```auto [hdrews2@cougar-pg-01 ~]$ sudo -A -i docker version Client: Version: 1.13.1 API version: 1.26 Package version: docker-1.13.1-109.gitcccb291.el7.centos.x86_64 Go version: go1.10.3 Git commit: cccb291/1.13.1 Built: Tue Mar 3 17:21:24 2020 OS/Arch: linux/amd64 Server: Version: 1.13.1 API version: 1.26 (minimum version 1.12) Package version: docker-1.13.1-109.gitcccb291.el7.centos.x86_64 Go version: go1.10.3 Git commit: cccb291/1.13.1 Built: Tue Mar 3 17:21:24 2020 OS/Arch: linux/amd64 Experimental: false [hdrews2@cougar-pg-01 ~]$ sudo -A -i docker pull percona/pmm-server:2 Trying to pull repository docker.io/percona/pmm-server ... 2: Pulling from docker.io/percona/pmm-server 2d473b07cdd5: Pull complete 5c1be54dc1c3: Pull complete Digest: sha256:69a07b0c75d47cdaf29636dfca32138c80e85b9572f52de1cfe0eb75381ac795 Status: Downloaded newer image for docker.io/percona/pmm-server:2 [hdrews2@cougar-pg-01 ~]$ sudo -A -i docker images REPOSITORY TAG IMAGE ID CREATED SIZE docker.io/percona/pmm-server 2 ddec0521f4bd 4 weeks ago 1.98 GB [hdrews2@cougar-pg-01 ~]$ sudo -A -i docker volume create pmm-data pmm-data [hdrews2@cougar-pg-01 ~]$ sudo -A -i docker run --detach \ > --restart always \ > --publish 443:443 \ > --publish 80:80 \ > --volume pmm-data:/srv \ > --name pmm-server percona/pmm-server:2 c0a8e7eb83317cfdca9e4e4fc29d5217ff65dbe69c2a35d0c826c875f4ce5d0d [hdrews2@cougar-pg-01 ~]$ sudo -A -i docker container ls CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES c0a8e7eb8331 percona/pmm-server:2 "/opt/entrypoint.sh" 7 seconds ago Up Less than a second (health: starting) 0.0.0.0:80->80/tcp, 0.0.0.0:443->443/tcp pmm-server [hdrews2@cougar-pg-01 ~]$ sudo -A -i pmm-admin --version ProjectName: pmm-admin Version: 2.31.0 PMMVersion: 2.31.0 Timestamp: 2022-09-23 13:21:08 (UTC) FullCommit: 86df37b0a6913391ee28b100a46761174052097b [hdrews2@cougar-pg-01 ~]$ sudo -A -i pmm-admin config --server-insecure-tls --server-url=https://admin:admin@XX.XX.XX.XX:443 --debug DEBUG 2022-10-27 13:18:39.892740981Z: Running: pmm-agent --server-address=XX.XX.XX.XX:443 --server-username=admin --server-password=admin --listen-port=7777 --server-insecure-tls --log-level=warn --debug --log-lines-count=1024 setup --metrics-mode=auto XX.XX.XX.XX generic cougar-pg-01 DEBUG 2022-10-27 13:18:39.936961582Z: Result: &commands.configResult{Warning:"", Output:"Checking local pmm-agent status...\npmm-agent is running.\nRegistering pmm-agent on PMM Server...\nFailed to register pmm-agent on PMM Server: Post \"https://XX.XX.XX.XX:443/v1/management/Node/Register\": dial tcp XX.XX.XX.XX:443: connect: connection refused."} DEBUG 2022-10-27 13:18:39.937709863Z: Error: &exec.ExitError{ProcessState:(*os.ProcessState)(0xc000368000), Stderr:[]uint8{0x1b, 0x5b, 0x33, 0x36, 0x6d, 0x49, 0x4e, 0x46, 0x4f, 0x1b, 0x5b, 0x30, 0x6d, 0x5b, 0x32, 0x30, 0x32, 0x32, 0x2d, 0x31, 0x30, 0x2d, 0x32, 0x37, 0x54, 0x31, 0x33, 0x3a, 0x31, 0x38, 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0x30, 0x32, 0x31, 0x32, 0x30, 0x66, 0x30, 0x29, 0x7d, 0x20, 0x20, 0x1b, 0x5b, 0x33, 0x37, 0x6d, 0x63, 0x6f, 0x6d, 0x70, 0x6f, 0x6e, 0x65, 0x6e, 0x74, 0x1b, 0x5b, 0x30, 0x6d, 0x3d, 0x73, 0x65, 0x74, 0x75, 0x70, 0xa}} Checking local pmm-agent status... pmm-agent is running. Registering pmm-agent on PMM Server... Failed to register pmm-agent on PMM Server: Post "https://XX.XX.XX.XX:443/v1/management/Node/Register": dial tcp XX.XX.XX.XX:443: connect: connection refused. DEBUG 2022-10-27 13:18:39.938556019Z: exit status 1, stderr: INFO[2022-10-27T13:18:39.926+00:00] Using /usr/local/percona/pmm2/exporters/node_exporter component=setup INFO[2022-10-27T13:18:39.926+00:00] Using /usr/local/percona/pmm2/exporters/mysqld_exporter component=setup INFO[2022-10-27T13:18:39.926+00:00] Using /usr/local/percona/pmm2/exporters/mongodb_exporter component=setup INFO[2022-10-27T13:18:39.926+00:00] Using /usr/local/percona/pmm2/exporters/postgres_exporter component=setup INFO[2022-10-27T13:18:39.926+00:00] Using /usr/local/percona/pmm2/exporters/proxysql_exporter component=setup INFO[2022-10-27T13:18:39.926+00:00] Using /usr/local/percona/pmm2/exporters/rds_exporter component=setup INFO[2022-10-27T13:18:39.926+00:00] Using /usr/local/percona/pmm2/exporters/azure_exporter component=setup INFO[2022-10-27T13:18:39.926+00:00] Using /usr/local/percona/pmm2/exporters/vmagent component=setup DEBU[2022-10-27T13:18:39.927+00:00] POST /local/Status HTTP/1.1 Host: 127.0.0.1:7777 User-Agent: Go-http-client/1.1 Content-Length: 3 Accept: application/json Content-Type: application/json Accept-Encoding: gzip {} component=setup DEBU[2022-10-27T13:18:39.931+00:00] HTTP/1.1 200 OK Content-Length: 241 Content-Type: application/json Date: Thu, 27 Oct 2022 13:18:39 GMT Grpc-Metadata-Content-Type: application/grpc { "agent_id": "", "runs_on_node_id": "", "server_info": null, "agents_info": [], "config_filepath": "/usr/local/percona/pmm2/config/pmm-agent.yaml", "agent_version": "2.31.0", "node_name": "", "connection_uptime": 0 } component=setup DEBU[2022-10-27T13:18:39.932+00:00] Status error: component=setup DEBU[2022-10-27T13:18:39.934+00:00] POST /v1/management/Node/Register HTTP/1.1 Host: XX.XX.XX.XX:443 User-Agent: Go-http-client/1.1 Content-Length: 206 Accept: application/json Authorization: Basic YWRtaW46YWRtaW4= Content-Type: application/json Accept-Encoding: gzip {"node_type":"GENERIC_NODE","node_name":"cougar-pg-01","address":"XX.XX.XX.XX","machine_id":"/machine_id/39e47867c43a4f5ba462940b4290d0be","distro":"linux","metrics_mode":"AUTO","disable_collectors":null} component=setup DEBU[2022-10-27T13:18:39.935+00:00] Register error: &url.Error{Op:"Post", URL:"https://XX.XX.XX.XX:443/v1/management/Node/Register", Err:(*net.OpError)(0xc0002120f0)} component=setup [hdrews2@cougar-pg-01 ~]$ sudo -A -i curl -k -v -u admin:admin https://XX.XX.XX.XX/ping * About to connect() to XX.XX.XX.XX port 443 (#0) * Trying XX.XX.XX.XX... * Connected to XX.XX.XX.XX (XX.XX.XX.XX) port 443 (#0) * Initializing NSS with certpath: sql:/etc/pki/nssdb * skipping SSL peer certificate verification * SSL connection using TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 * Server certificate: * subject: O=Main Org. * start date: Sep 23 13:32:52 2022 GMT * expire date: Sep 23 13:32:52 2023 GMT * common name: (nil) * issuer: O=Main Org. * Server auth using Basic with user 'admin' > GET /ping HTTP/1.1 > Authorization: Basic YWRtaW46YWRtaW4= > User-Agent: curl/7.29.0 > Host: XX.XX.XX.XX > Accept: */* > < HTTP/1.1 200 OK < Server: nginx < Date: Thu, 27 Oct 2022 13:25:03 GMT < Content-Type: application/json < Content-Length: 2 < Connection: keep-alive < Grpc-Metadata-Content-Type: application/grpc < X-Frame-Options: DENY < X-Content-Type-Options: nosniff < X-XSS-Protection: 1; mode=block < Cache-control: no-cache < Pragma: no-cache < Strict-Transport-Security: max-age=63072000; includeSubdomains; < * Connection #0 to host XX.XX.XX.XX left intact ``` ---
**Author:** ![steve.hoffman](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/steve.hoffman/32/66_2.png) [@steve.hoffman](https://forums.percona.com/u/steve.hoffman)\ **Post date:** [October 27, 2022, 2:53pm UTC](https://forums.percona.com/t/unable-to-register-client-with-server/18213/2 "2022-10-27T14:53:51Z")
when you say “it fails” on the https port what do you see in a browser? Are you getting a security warning or more of a network error (your command seem to show “connection refused” in the output which seems to be the latter)? PMM client _requires_ a secure connection to the pmm server (doesn’t have to be on port 443 but when the connection is made the client will only talk gRPC over HTTPS) so if you can’t get to the https port that is very likely where to start troubleshooting. Looking at the command for getting your pmm-server up, it appears to be correct so my suspicions go right to iptables and some sort of firewall rules (maybe selinux or fail2ban?) that would be blocking access. if you paste the output of `iptables --list -n` (at least the INPUT and DOCKER sections), something might jump out. ---
**Author:** ![steve.hoffman](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/steve.hoffman/32/66_2.png) [@steve.hoffman](https://forums.percona.com/u/steve.hoffman)\ **Post date:** [October 27, 2022, 2:57pm UTC](https://forums.percona.com/t/unable-to-register-client-with-server/18213/3 "2022-10-27T14:57:09Z")
> [@hkdware](#): > > `sudo -A -i curl -k -v -u admin:admin https://XX.XX.XX.XX/ping` hmmm…but I see this succeeded!!! now I’m stumped… what happens if you change that to /graph instead of /ping? ---
**Author:** ![hkdware](https://avatars.discourse-cdn.com/v4/letter/h/e495f1/32.png) [@hkdware](https://forums.percona.com/u/hkdware)\ **Post date:** [October 27, 2022, 3:28pm UTC](https://forums.percona.com/t/unable-to-register-client-with-server/18213/4 "2022-10-27T15:28:37Z")
> [@steve.hoffman](#): > > iptables --list -n Here is the output from the iptables command. The docker IP is represented by YY.YY.YY.YY: ```auto [hdrews2@cougar-pg-01 ~]$ sudo -A -i iptables --list -n 2>&1 | more Chain INPUT (policy ACCEPT) target prot opt source destination ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 ctstate RELATED,ESTABLISHED ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 INPUT_direct all -- 0.0.0.0/0 0.0.0.0/0 INPUT_ZONES_SOURCE all -- 0.0.0.0/0 0.0.0.0/0 INPUT_ZONES all -- 0.0.0.0/0 0.0.0.0/0 DROP all -- 0.0.0.0/0 0.0.0.0/0 ctstate INVALID REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited Chain FORWARD (policy DROP) target prot opt source destination DOCKER-ISOLATION all -- 0.0.0.0/0 0.0.0.0/0 DOCKER all -- 0.0.0.0/0 0.0.0.0/0 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 ctstate RELATED,ESTABLISHED ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 ctstate RELATED,ESTABLISHED ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 FORWARD_direct all -- 0.0.0.0/0 0.0.0.0/0 FORWARD_IN_ZONES_SOURCE all -- 0.0.0.0/0 0.0.0.0/0 FORWARD_IN_ZONES all -- 0.0.0.0/0 0.0.0.0/0 FORWARD_OUT_ZONES_SOURCE all -- 0.0.0.0/0 0.0.0.0/0 FORWARD_OUT_ZONES all -- 0.0.0.0/0 0.0.0.0/0 DROP all -- 0.0.0.0/0 0.0.0.0/0 ctstate INVALID REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited Chain OUTPUT (policy ACCEPT) target prot opt source destination ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 OUTPUT_direct all -- 0.0.0.0/0 0.0.0.0/0 Chain DOCKER (1 references) target prot opt source destination ACCEPT tcp -- 0.0.0.0/0 YY.YY.YY.YY tcp dpt:443 ACCEPT tcp -- 0.0.0.0/0 YY.YY.YY.YY tcp dpt:80 Chain DOCKER-ISOLATION (1 references) target prot opt source destination RETURN all -- 0.0.0.0/0 0.0.0.0/0 Chain FORWARD_IN_ZONES (1 references) target prot opt source destination FWDI_public all -- 0.0.0.0/0 0.0.0.0/0 [goto] FWDI_public all -- 0.0.0.0/0 0.0.0.0/0 [goto] Chain FORWARD_IN_ZONES_SOURCE (1 references) target prot opt source destination Chain FORWARD_OUT_ZONES (1 references) target prot opt source destination FWDO_public all -- 0.0.0.0/0 0.0.0.0/0 [goto] FWDO_public all -- 0.0.0.0/0 0.0.0.0/0 [goto] Chain FORWARD_OUT_ZONES_SOURCE (1 references) target prot opt source destination Chain FORWARD_direct (1 references) target prot opt source destination Chain FWDI_public (2 references) target prot opt source destination FWDI_public_log all -- 0.0.0.0/0 0.0.0.0/0 FWDI_public_deny all -- 0.0.0.0/0 0.0.0.0/0 FWDI_public_allow all -- 0.0.0.0/0 0.0.0.0/0 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 Chain FWDI_public_allow (1 references) target prot opt source destination Chain FWDI_public_deny (1 references) target prot opt source destination Chain FWDI_public_log (1 references) target prot opt source destination Chain FWDO_public (2 references) target prot opt source destination FWDO_public_log all -- 0.0.0.0/0 0.0.0.0/0 FWDO_public_deny all -- 0.0.0.0/0 0.0.0.0/0 FWDO_public_allow all -- 0.0.0.0/0 0.0.0.0/0 Chain FWDO_public_allow (1 references) target prot opt source destination Chain FWDO_public_deny (1 references) target prot opt source destination Chain FWDO_public_log (1 references) target prot opt source destination Chain INPUT_ZONES (1 references) target prot opt source destination IN_public all -- 0.0.0.0/0 0.0.0.0/0 [goto] IN_public all -- 0.0.0.0/0 0.0.0.0/0 [goto] Chain INPUT_ZONES_SOURCE (1 references) target prot opt source destination Chain INPUT_direct (1 references) target prot opt source destination Chain IN_public (2 references) target prot opt source destination IN_public_log all -- 0.0.0.0/0 0.0.0.0/0 IN_public_deny all -- 0.0.0.0/0 0.0.0.0/0 IN_public_allow all -- 0.0.0.0/0 0.0.0.0/0 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 Chain IN_public_allow (1 references) target prot opt source destination ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp limit: avg 25/min burst 100 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:22 ctstate NEW,UNTRACKED ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:591 ctstate NEW,UNTRACKED ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:8082 ctstate NEW,UNTRACKED ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:161 ctstate NEW,UNTRACKED ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:5432 ctstate NEW,UNTRACKED ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:443 ctstate NEW,UNTRACKED ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:7777 ctstate NEW,UNTRACKED ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:80 ctstate NEW,UNTRACKED Chain IN_public_deny (1 references) target prot opt source destination Chain IN_public_log (1 references) target prot opt source destination Chain OUTPUT_direct (1 references) target prot opt source destination ``` ---
**Author:** ![hkdware](https://avatars.discourse-cdn.com/v4/letter/h/e495f1/32.png) [@hkdware](https://forums.percona.com/u/hkdware)\ **Post date:** [October 27, 2022, 3:29pm UTC](https://forums.percona.com/t/unable-to-register-client-with-server/18213/5 "2022-10-27T15:29:37Z")
The output from the curl command to too much to add to a reply. ---
**Author:** ![hkdware](https://avatars.discourse-cdn.com/v4/letter/h/e495f1/32.png) [@hkdware](https://forums.percona.com/u/hkdware)\ **Post date:** [October 27, 2022, 3:59pm UTC](https://forums.percona.com/t/unable-to-register-client-with-server/18213/6 "2022-10-27T15:59:41Z")
The curl output is quite large. [curl\_graph.txt](https://forums.percona.com/uploads/short-url/pwvMNyoAM77LQTqxpwJ7G4NAPAL.txt) (63.5 KB) ---
**Author:** ![hkdware](https://avatars.discourse-cdn.com/v4/letter/h/e495f1/32.png) [@hkdware](https://forums.percona.com/u/hkdware)\ **Post date:** [October 27, 2022, 4:00pm UTC](https://forums.percona.com/t/unable-to-register-client-with-server/18213/7 "2022-10-27T16:00:36Z")
Also, get this when attempting to load the home page in a web browser: ERR\_CONNECTION\_CLOSED ---
**Author:** ![Michael\_Coburn](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/michael_coburn/32/18_2.png) [@Michael\_Coburn](https://forums.percona.com/u/Michael_Coburn)\ **Post date:** [October 27, 2022, 4:15pm UTC](https://forums.percona.com/t/unable-to-register-client-with-server/18213/8 "2022-10-27T16:15:00Z")
It is probably your firewall rules. You can attempt the following: ```auto sudo iptables -F sudo systemctl restart docker ``` This will get to you a point where you only have the forwarding rules in place for docker container. Then test with your browser / `pmm-admin config` and you should hopefully see successful registration. If that passes, have a look at why your forwarding rule is being blocked. ---
**Author:** ![hkdware](https://avatars.discourse-cdn.com/v4/letter/h/e495f1/32.png) [@hkdware](https://forums.percona.com/u/hkdware)\ **Post date:** [October 27, 2022, 4:27pm UTC](https://forums.percona.com/t/unable-to-register-client-with-server/18213/9 "2022-10-27T16:27:48Z")
Still have the same issue as before. Those commands didn’t make any difference. ---
**Author:** ![steve.hoffman](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/steve.hoffman/32/66_2.png) [@steve.hoffman](https://forums.percona.com/u/steve.hoffman)\ **Post date:** [October 27, 2022, 4:35pm UTC](https://forums.percona.com/t/unable-to-register-client-with-server/18213/10 "2022-10-27T16:35:17Z")
When you’re on the server your curl commands are working correctly (that long output from /graph IS the login page loading) so I’m stumped why the pmm-admin command on the same host gets refused?!?! Complete shot in the dark but in your curl command you leave the port number off but you include it in the pmm-admin command… can you try with just [https://admin:admin@XX.XX.XX.XX](https://admin:admin@XX.XX.XX.XX) or even [https://admin:admin@localhost](https://admin:admin@localhost) still doesn’t explain why a browser also can’t open the https page but if we treat them separate (even though they may not be). ---
**Author:** ![hkdware](https://avatars.discourse-cdn.com/v4/letter/h/e495f1/32.png) [@hkdware](https://forums.percona.com/u/hkdware)\ **Post date:** [October 27, 2022, 4:46pm UTC](https://forums.percona.com/t/unable-to-register-client-with-server/18213/11 "2022-10-27T16:46:16Z")
I did a systemctl status firewalld and found out that I’m getting WARNING: COMMAND\_FAILED when setting up interface docker0 with the -D FORWARD option, “Bad rule”. I’ll have to talk to our SA’s to see if they can help out ---
**Author:** ![hkdware](https://avatars.discourse-cdn.com/v4/letter/h/e495f1/32.png) [@hkdware](https://forums.percona.com/u/hkdware)\ **Post date:** [October 27, 2022, 6:42pm UTC](https://forums.percona.com/t/unable-to-register-client-with-server/18213/12 "2022-10-27T18:42:00Z")
I get the same response when I leave the port number off, with both XXX.XX.XX.XX and localhost. I ran a iptables --list-rules DOCKER command and got this: ```auto [hdrews2@cougar-pg-01 ~]$ sudo -A -i iptables --list-rules DOCKER -N DOCKER -A DOCKER -d YY.YY.YY.YY/32 ! -i docker0 -o docker0 -p tcp -m tcp --dport 443 -j ACCEPT -A DOCKER -d YY.YY.YY.YY/32 ! -i docker0 -o docker0 -p tcp -m tcp --dport 80 -j ACCEPT ``` Could the “ **! -i docker0** ” be causing the issue? ---
**Author:** ![steve.hoffman](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/steve.hoffman/32/66_2.png) [@steve.hoffman](https://forums.percona.com/u/steve.hoffman)\ **Post date:** [October 27, 2022, 7:28pm UTC](https://forums.percona.com/t/unable-to-register-client-with-server/18213/13 "2022-10-27T19:28:27Z")
I don’t think so…I looked at my instance and I have the exact same rule for my DOCKER network and it’s not blocking me. Have you looked in /var/log/audit/audit.log as you try to hit it to see if selinux is the culprit? alternatively you can switch from a port forwarding configuration in docker to host networking…instead of ```nohighlight > --restart always \ > --publish 443:443 \ > --publish 80:80 \ > --volume pmm-data:/srv \ > --name pmm-server percona/pmm-server:2 ``` you’d instead run: ```auto sudo -A -i docker run --detach \ > --restart always \ > --network host \ > --volume pmm-data:/srv \ > --name pmm-server percona/pmm-server:2 ``` which will bind directly to your machines 80 and 443 without using forwarding rules…my fear is that you’ve got some restrictive policy in selinux, firewalld or similar preventing you from using port 443 (either locally bound or as a forward) so even removing iptables from the mix there’s still some mandatory enforcement of another policy. ---
**Author:** ![hkdware](https://avatars.discourse-cdn.com/v4/letter/h/e495f1/32.png) [@hkdware](https://forums.percona.com/u/hkdware)\ **Post date:** [October 28, 2022, 12:52pm UTC](https://forums.percona.com/t/unable-to-register-client-with-server/18213/14 "2022-10-28T12:52:06Z")
After making the recommended change to the docker run command, here is the results: ```auto [hdrews2@cougar-pg-01 ~]$ [hdrews2@cougar-pg-01 ~]$ sudo -A -i pmm-admin config --server-insecure-tls --server-url=https://admin:admin@XX.XX.XX.XX:443 Checking local pmm-agent status... pmm-agent is running. Registering pmm-agent on PMM Server... Failed to register pmm-agent on PMM Server: Post "https://XX.XX.XX.XX:443/v1/management/Node/Register": dial tcp XX.XX.XX.XX:443: connect: connection refused. [hdrews2@cougar-pg-01 ~]$ [hdrews2@cougar-pg-01 ~]$ sudo -A -i lsof -i -P | grep LISTEN lsof: no pwd entry for UID 26 lsof: no pwd entry for UID 26 lsof: no pwd entry for UID 26 lsof: no pwd entry for UID 26 lsof: no pwd entry for UID 26 lsof: no pwd entry for UID 26 lsof: no pwd entry for UID 26 lsof: no pwd entry for UID 26 rpcbind 1391 rpc 9u IPv4 22826 0t0 TCP *:111 (LISTEN) rpcbind 1391 rpc 12u IPv6 22829 0t0 TCP *:111 (LISTEN) sshd 1831 root 3u IPv4 25490 0t0 TCP *:22 (LISTEN) sshd 1831 root 4u IPv6 25492 0t0 TCP *:22 (LISTEN) pmm-agent 1832 root 6u IPv4 28233 0t0 TCP localhost:38019 (LISTEN) pmm-agent 1832 root 9u IPv4 24182 0t0 TCP localhost:7777 (LISTEN) postmaste 1859 postgres 7u IPv4 27287 0t0 TCP XX.XX.XX.XX:5432 (LISTEN) master 2153 root 14u IPv4 29739 0t0 TCP localhost:25 (LISTEN) lsof: no pwd entry for UID 26 lsof: no pwd entry for UID 26 lsof: no pwd entry for UID 26 lsof: no pwd entry for UID 26 lsof: no pwd entry for UID 26 lsof: no pwd entry for UID 26 lsof: no pwd entry for UID 26 lsof: no pwd entry for UID 26 postgres 108940 26 6u IPv4 2087719 0t0 TCP localhost:5432 (LISTEN) nginx 108943 root 6u IPv4 2100241 0t0 TCP *:80 (LISTEN) nginx 108943 root 7u IPv4 2100242 0t0 TCP *:443 (LISTEN) victoriam 108947 sysmaint 13u IPv4 2100255 0t0 TCP localhost:9090 (LISTEN) vmalert 108951 sysmaint 3u IPv4 2098298 0t0 TCP localhost:8880 (LISTEN) alertmana 108953 sysmaint 3u IPv4 2091998 0t0 TCP localhost:9093 (LISTEN) nginx 109006 polkitd 6u IPv4 2100241 0t0 TCP *:80 (LISTEN) nginx 109006 polkitd 7u IPv4 2100242 0t0 TCP *:443 (LISTEN) nginx 109007 polkitd 6u IPv4 2100241 0t0 TCP *:80 (LISTEN) nginx 109007 polkitd 7u IPv4 2100242 0t0 TCP *:443 (LISTEN) [hdrews2@cougar-pg-01 ~]$ [hdrews2@cougar-pg-01 ~]$ ps -fu 26 UID PID PPID C STIME TTY TIME CMD 26 108940 108789 6 12:38 ? 00:00:00 /usr/pgsql-14/bin/postgres -D /srv/postgres14 -c shared_preload_libraries=pg_stat_ 26 108990 108940 0 12:38 ? 00:00:00 postgres: logger 26 109025 108940 0 12:38 ? 00:00:00 postgres: checkpointer 26 109027 108940 0 12:38 ? 00:00:00 postgres: background writer 26 109029 108940 0 12:38 ? 00:00:00 postgres: walwriter 26 109030 108940 0 12:38 ? 00:00:00 postgres: autovacuum launcher 26 109031 108940 0 12:38 ? 00:00:00 postgres: stats collector 26 109032 108940 0 12:38 ? 00:00:00 postgres: logical replication launcher ``` Now I’m getting a connection refused when I attempt to register. I also see a new set of PostgreSQL processes using UID 26. I’m curious about those processes, since they are started from my locally installed PostgreSQL 14 installation. ---
**Author:** ![steve.hoffman](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/steve.hoffman/32/66_2.png) [@steve.hoffman](https://forums.percona.com/u/steve.hoffman)\ **Post date:** [October 28, 2022, 7:36pm UTC](https://forums.percona.com/t/unable-to-register-client-with-server/18213/15 "2022-10-28T19:36:33Z")
There’s actually no change there. UID 26 is the UID of postgres running inside the container…but because the container is sort of a “jail” running out of the hosts kernel you can see the processes that it’s running inside the container on the host…but the host isn’t looking at /etc/passwd inside the container to translate the UID to username. something is blocking access to port 443 somehow and I can’t for the life of me figure out what. It might be time to talk to your sysadmin team about what policy they configure on systems that might interfere. At this point the only other idea I have is to run pmm’s https listening on a non-standard port (I know I’m asking you to recreate the pmm-server container _again_ and I’m sorry…but not sure how else to try and get you up and running). ```auto > --restart always \ >. --publish 8443:443 \ > --publish 443:443 \ > --publish 80:80 \ > --volume pmm-data:/srv \ > --name pmm-server percona/pmm-server:2 ``` that’ll give you a listener on 80, 443 and 8443 so you should be able to access the UI and register using [https://XX.XX.XX.XX:8443](https://XX.XX.XX.XX:8443) at that point… ---
**Author:** ![hkdware](https://avatars.discourse-cdn.com/v4/letter/h/e495f1/32.png) [@hkdware](https://forums.percona.com/u/hkdware)\ **Post date:** [November 18, 2022, 2:18pm UTC](https://forums.percona.com/t/unable-to-register-client-with-server/18213/16 "2022-11-18T14:18:40Z")
It was a long time coming, but I finally figured out the issue. The server I was installing PMM onto was FIPS enabled. As soon as I disabled FIPS mode, everything started working as expected. ---
**Author:** ![steve.hoffman](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/steve.hoffman/32/66_2.png) [@steve.hoffman](https://forums.percona.com/u/steve.hoffman)\ **Post date:** [November 18, 2022, 6:21pm UTC](https://forums.percona.com/t/unable-to-register-client-with-server/18213/17 "2022-11-18T18:21:38Z")
Well I’m happy you were able to get it all working…but…I assume it was in FIPS mode for a reason! What OS are you using…not that I’m overflowing with free time these days but I’d be interested to see how to keep FIPS mode on a system and still be able to leverage PMM. As far as I know we use all the latest cryptography so perhaps it’s blocking you because the cert we ship PMM with is untrusted? ---
**Author:** ![hkdware](https://avatars.discourse-cdn.com/v4/letter/h/e495f1/32.png) [@hkdware](https://forums.percona.com/u/hkdware)\ **Post date:** [November 18, 2022, 6:24pm UTC](https://forums.percona.com/t/unable-to-register-client-with-server/18213/18 "2022-11-18T18:24:37Z")
We are using Redhat Enterprise version 7.