# ACLK\_MAIN ERROR - "Connection Problem" With Proxy
**URL:** https://community.netdata.cloud/t/aclk-main-error-connection-problem-with-proxy/4809
**Category:** Help
**Tags:** cloud
**Created:** [October 27, 2023, 6:03pm UTC](https://community.netdata.cloud/t/aclk-main-error-connection-problem-with-proxy/4809 "2023-10-27T18:03:17Z")
**Posts on this page:** 19
**Page:** 1
### Author:  [@Jonathan\_Stampella](https://community.netdata.cloud/u/Jonathan_Stampella)
#### Post date: [October 27, 2023, 6:03pm UTC](https://community.netdata.cloud/t/aclk-main-error-connection-problem-with-proxy/4809/1 "2023-10-27T18:03:17Z")
I am having a problem connecting to the cloud with my netdata service, I am getting the message “Connection problem”
I have the netdata service set up with docker compose, the server has a proxy for output to the internet so it is configured to output through the proxy and also configured the no\_proxy for localhost
```auto
version: '3'
services:
netdata:
image: netdata/netdata:latest
container_name: netdata
hostname: ******.com.ar
pid: host
ports:
- 4000:19999
restart: unless-stopped
cap_add:
- SYS_ADMIN
security_opt:
- apparmor:unconfined
volumes:
- ./log/:/var/log/netdata/
- ./netdata.conf:/etc/netdata/netdata.conf
- netdatalib:/var/lib/netdata
- netdatacache:/var/cache/netdata
- /etc/passwd:/host/etc/passwd:ro
- /etc/group:/host/etc/group:ro
- /proc:/host/proc:ro
- /sys:/host/sys:ro
- /etc/os-release:/host/etc/os-release:ro
- /var/run/docker.sock:/var/run/docker.sock:ro
environment:
- PGID=979
- VIRTUALIZATION=vmware
- TZ=America/Argentina
- http_proxy=http:// *******.com.ar:8080
- https_proxy=http:// *******.com.ar:8080
- no_proxy=localhost,127.0.0.1, *****.com.ar:4000
- NETDATA_CLAIM_TOKEN=why9p ***************************************** amKQ
- NETDATA_CLAIM_URL=https://app.netdata.cloud
- NETDATA_CLAIM_ROOMS= **********************
networks:
- network_capacity
volumes:
netdatalib:
netdatacache:
networks:
network_capacity:
external: true
```
I comment with \*\*\*\* the confidential data
I clarify that on the host server: I have the exports declared
I don’t know what the problem is due to, I know it is due to the proxy but I don’t know how to solve the problem, the proxy has the connection with the url [app.netdata.cloud] enabled, is another url that netdata uses missing? Is there any extra configuration that must be done in these cases when using proxy? thank you
---
### Author:  [@Manolis\_Vasilakis](https://community.netdata.cloud/u/Manolis_Vasilakis)
#### Post date: [October 30, 2023, 1:25pm UTC](https://community.netdata.cloud/t/aclk-main-error-connection-problem-with-proxy/4809/2 "2023-10-30T13:25:22Z")
Hi @Jonathan_Stampella
Is it possible to grep your `error.log` for any ACLK lines? Should show some more info on the connection status.
Thanks!
---
### Author:  [@Jonathan\_Stampella](https://community.netdata.cloud/u/Jonathan_Stampella)
#### Post date: [October 30, 2023, 1:39pm UTC](https://community.netdata.cloud/t/aclk-main-error-connection-problem-with-proxy/4809/3 "2023-10-30T13:39:05Z")
Hi, in error.log show this
---
### Author:  [@Manolis\_Vasilakis](https://community.netdata.cloud/u/Manolis_Vasilakis)
#### Post date: [October 30, 2023, 2:23pm UTC](https://community.netdata.cloud/t/aclk-main-error-connection-problem-with-proxy/4809/4 "2023-10-30T14:23:42Z")
Thanks Jonathan.
Have you followed the steps for defining the proxy here → [Connect Agent to Cloud | Learn Netdata](https://learn.netdata.cloud/docs/configuring/connect-agent-to-cloud#connect-through-a-proxy) ?
---
### Author:  [@Jonathan\_Stampella](https://community.netdata.cloud/u/Jonathan_Stampella)
#### Post date: [October 30, 2023, 2:44pm UTC](https://community.netdata.cloud/t/aclk-main-error-connection-problem-with-proxy/4809/5 "2023-10-30T14:44:05Z")
I set the proxy but I don’t know what else I have to do, I’m lost with the netdata and proxy configuration! run the netdata-kickstart.sh script, first download it to my PC and then paste it on the server because I don’t have the url enabled for [https://comunity.netdata.cloud](https://comunity.netdata.cloud) and it gives me this:
---
### Author:  [@Jonathan\_Stampella](https://community.netdata.cloud/u/Jonathan_Stampella)
#### Post date: [October 30, 2023, 5:01pm UTC](https://community.netdata.cloud/t/aclk-main-error-connection-problem-with-proxy/4809/6 "2023-10-30T17:01:29Z")
Could it be because I don’t have that url enabled in the proxy?
Thanks
---
### Author:  [@Jonathan\_Stampella](https://community.netdata.cloud/u/Jonathan_Stampella)
#### Post date: [October 30, 2023, 6:46pm UTC](https://community.netdata.cloud/t/aclk-main-error-connection-problem-with-proxy/4809/7 "2023-10-30T18:46:50Z")
I solved the problem to connect to the cloud, it was the docker image that had an old version of netdata. Now when I go to my profile in netdata I can’t see the connected node
Is there a waiting time until the node is seen online? or do you have to enable something on the server?
or maybe the same error continues and only the interface was updated.
I noticed that in the info it shows me node\_id as null
Is there something I’m missing?
```auto
# netdata configuration
#
# You can download the latest version of this file, using:
#
# wget -O /etc/netdata/netdata.conf http://localhost:19999/netdata.conf
# or
# curl -o /etc/netdata/netdata.conf http://localhost:19999/netdata.conf
#
# You can uncomment and change any of the options below.
# The value shown in the commented settings, is the default value.
#
# global netdata configuration
[global]
# run as user = netdata
# host access prefix = /host
# glibc malloc arena max for plugins = 1
# cpu cores = 8
# libuv worker threads = 48
# hostname = PLVULCAUTOMA
# enable metric correlations = yes
# metric correlations method = ks2
# timezone = America/Argentina
# OOM score = 0
# process scheduling policy = batch
# process nice level = 19
# pthread stack size = 131072
[db]
# update every = 1
# mode = dbengine
# dbengine page cache size MB = 32
# dbengine extent cache size MB = 0
# dbengine enable journal integrity check = no
# dbengine disk space MB = 256
# dbengine multihost disk space MB = 256
# memory deduplication (ksm) = yes
# cleanup obsolete charts after secs = 3600
# gap when lost iterations above = 1
# enable replication = yes
# seconds to replicate = 86400
# seconds per replication step = 600
# cleanup orphan hosts after secs = 3600
# dbengine use direct io = yes
# dbengine pages per extent = 64
# storage tiers = 3
# dbengine parallel initialization = yes
# dbengine tier 1 multihost disk space MB = 128
# dbengine tier 1 update every iterations = 60
# dbengine tier 1 backfill = new
# dbengine tier 2 multihost disk space MB = 64
# dbengine tier 2 update every iterations = 60
# dbengine tier 2 backfill = new
# delete obsolete charts files = yes
# delete orphan hosts files = yes
# enable zero metrics = no
# replication threads = 1
[directories]
# config = /etc/netdata
# stock config = /usr/lib/netdata/conf.d
# log = /var/log/netdata
# web = /usr/share/netdata/web
# cache = /var/cache/netdata
# lib = /var/lib/netdata
# home = /root
# lock = /var/lib/netdata/lock
# plugins = "/usr/libexec/netdata/plugins.d" "/etc/netdata/custom-plugins.d"
# registry = /var/lib/netdata/registry
# stock health config = /usr/lib/netdata/conf.d/health.d
# health config = /etc/netdata/health.d
[logs]
# debug flags = 0x0000000000000000
# debug = /var/log/netdata/debug.log
# error = /var/log/netdata/error.log
# collector = /var/log/netdata/collector.log
# access = /var/log/netdata/access.log
# health = /var/log/netdata/health.log
# facility = daemon
# errors flood protection period = 1200
# errors to trigger flood protection = 200
# severity level = info
[environment variables]
# PATH = /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin
# PYTHONPATH =
[host labels]
# name = value
[sqlite]
# auto vacuum = INCREMENTAL
# synchronous = NORMAL
# journal mode = WAL
# temp store = MEMORY
# journal size limit = 16777216
# cache size = -2000
[cloud]
proxy = http:// ************.com.ar:8080
# conversation log = no
# query thread count = 4
# statistics = yes
[ml]
# enabled = yes
# maximum num samples to train = 21600
# minimum num samples to train = 900
# train every = 10800
# number of models per dimension = 18
# delete models older than = 604800
# num samples to diff = 1
# num samples to smooth = 3
# num samples to lag = 5
# random sampling ratio = 0.20000
# maximum number of k-means iterations = 1000
# dimension anomaly score threshold = 0.99000
# host anomaly rate threshold = 1.00000
# anomaly detection grouping method = average
# anomaly detection grouping duration = 300
# num training threads = 4
# flush models batch size = 128
# dimension anomaly rate suppression window = 900
# dimension anomaly rate suppression threshold = 450
# enable statistics charts = yes
# hosts to skip from training = !*
# charts to skip from training = netdata.*
# stream anomaly detection charts = yes
[health]
# silencers file = /var/lib/netdata/health.silencers.json
# enabled = yes
# is ephemeral = no
# has unstable connection = no
# run at least every seconds = 10
# postpone alarms during hibernation for seconds = 60
# default repeat warning = never
# default repeat critical = never
# in memory max health log entries = 1000
# health log history = 432000
# enabled alarms = *
# script to execute on alarm = /usr/libexec/netdata/plugins.d/alarm-notify.sh
# use summary for notifications = yes
# enable stock health configuration = yes
[web]
# default port = 19999
# ssl key = /etc/netdata/ssl/key.pem
# ssl certificate = /etc/netdata/ssl/cert.pem
# tls version = 1.3
# tls ciphers = none
# ses max tg_des_window = 15
# des max tg_des_window = 15
# mode = static-threaded
# listen backlog = 4096
# bind to = *
# disconnect idle clients after seconds = 60
# timeout for first request = 60
# accept a streaming request every seconds = 0
# respect do not track policy = no
# x-frame-options response header =
# allow connections from = localhost *
# allow connections by dns = heuristic
# allow dashboard from = localhost *
# allow dashboard by dns = heuristic
# allow badges from = *
# allow badges by dns = heuristic
# allow streaming from = *
# allow streaming by dns = heuristic
# allow netdata.conf from = localhost fd* 10.* 192.168.* 172.16.* 172.17.* 172.18.* 172.19.* 172.20.* 172.21.* 172.22.* 172.23.* 172.24.* 172.25.* 172.26.* 172.27.* 172.28.* 172.29.* 172.30.* 172.31.* UNKNOWN
# allow netdata.conf by dns = no
# allow management from = localhost
# allow management by dns = heuristic
# enable gzip compression = yes
# gzip compression strategy = default
# gzip compression level = 3
# ssl skip certificate verification = no
# web server threads = 6
# web server max sockets = 262144
[registry]
enabled = yes
# netdata unique id file = /var/lib/netdata/registry/netdata.public.unique.id
# registry db file = /var/lib/netdata/registry/registry.db
# registry log file = /var/lib/netdata/registry/registry-log.db
# registry save db every new entries = 1000000
# registry expire idle persons days = 365
# registry domain =
# registry to announce = https://registry.my-netdata.io
# registry hostname = PLVULCAUTOMA
# verify browser cookies support = yes
# enable cookies SameSite and Secure = yes
# max URL length = 1024
# max URL name length = 50
# use mmap = no
# netdata management api key file = /var/lib/netdata/netdata.api.key
# allow from = *
# allow by dns = heuristic
[global statistics]
# update every = 1
```
inside the netdata container it has a connection with app.netdata
---
### Author:  [@Manolis\_Vasilakis](https://community.netdata.cloud/u/Manolis_Vasilakis)
#### Post date: [October 31, 2023, 1:10pm UTC](https://community.netdata.cloud/t/aclk-main-error-connection-problem-with-proxy/4809/8 "2023-10-31T13:10:51Z")
It appears that the connection still doesn’t work…
Can you post the output of `http://localhost:19999/api/v1/aclk`? Can you check again the error.log for ACLK entries?
---
### Author:  [@Jonathan\_Stampella](https://community.netdata.cloud/u/Jonathan_Stampella)
#### Post date: [October 31, 2023, 2:57pm UTC](https://community.netdata.cloud/t/aclk-main-error-connection-problem-with-proxy/4809/9 "2023-10-31T14:57:28Z")
api/v1/aclk
```auto
{
"aclk-available": true,
"aclk-version": 2,
"protocols-supported": [
"Protobuf"
],
"agent-claimed": true,
"claimed-id": "8a8a3fd9-3325-40d9-8d36-cce6d95be610",
"cloud-url": "https://app.netdata.cloud",
"online": false,
"used-cloud-protocol": "Protobuf",
"mqtt-version": 5,
"received-app-layer-msgs": 0,
"received-mqtt-pubacks": 0,
"reconnect-count": 0,
"last-connect-time-utc": null,
"last-connect-time-puback-utc": null,
"last-disconnect-time-utc": null,
"next-connection-attempt-utc": "2023-10-31 14:54:08",
"last-backoff-value": 164.85499572753906,
"banned-by-cloud": false,
"node-instances": [
{
"hostname": "PLVULCAUTOMA",
"mguid": "8a8a3fd9-3325-40d9-8d36-cce6d95be610",
"claimed_id": "8a8a3fd9-3325-40d9-8d36-cce6d95be610",
"node-id": null,
"streaming-hops": 0,
"relationship": "self",
"streaming-online": true,
"alert-sync-status": {
}
}
]
}
```
file error.log
```auto
2023-10-31 14:49:02: netdata INFO : TRAIN[0] : thread created with task id 41842
2023-10-31 14:49:02: netdata INFO : TRAIN[0] : set name of thread 41842 to TRAIN[0]
2023-10-31 14:49:02: netdata INFO : P[diskspace slo : set name of thread 41841 to P[diskspace slo
2023-10-31 14:49:02: netdata INFO : TRAIN[1] : thread created with task id 41843
2023-10-31 14:49:02: netdata INFO : TRAIN[1] : set name of thread 41843 to TRAIN[1]
2023-10-31 14:49:02: netdata ERROR : STATSD_FLUSH : LISTENER: IPv6 bind() on ip '::1' port 8125, socktype 1 failed. (errno 99, Address not available)
2023-10-31 14:49:02: netdata ERROR : STATSD_FLUSH : LISTENER: Cannot bind to ip '::1', port 8125
2023-10-31 14:49:02: netdata INFO : STATSD_FLUSH : LISTENER: Listen socket udp:127.0.0.1:8125 opened successfully.
2023-10-31 14:49:02: netdata INFO : STATSD_FLUSH : LISTENER: Listen socket tcp:127.0.0.1:8125 opened successfully.
2023-10-31 14:49:02: netdata INFO : WEB[6] : POLLFD: LISTENER: listening on 'tcp:[::]:19999'
2023-10-31 14:49:02: netdata INFO : PREDICT : thread created with task id 41837
2023-10-31 14:49:02: netdata INFO : PREDICT : set name of thread 41837 to PREDICT
2023-10-31 14:49:02: netdata INFO : WEB[5] : set name of thread 41830 to WEB[5]
2023-10-31 14:49:02: netdata INFO : P[proc] : set name of thread 41829 to P[proc]
2023-10-31 14:49:02: netdata INFO : P[proc netdev] : thread created with task id 41846
2023-10-31 14:49:02: netdata INFO : P[proc netdev] : set name of thread 41846 to P[proc netdev]
2023-10-31 14:49:02: netdata INFO : WEB[5] : POLLFD: LISTENER: listening on 'tcp:0.0.0.0:19999'
2023-10-31 14:49:02: netdata INFO : WEB[5] : POLLFD: LISTENER: listening on 'tcp:[::]:19999'
2023-10-31 14:49:02: netdata INFO : STATSD_IN[1] : thread created with task id 41845
2023-10-31 14:49:02: netdata INFO : STATSD_IN[1] : set name of thread 41845 to STATSD_IN[1]
2023-10-31 14:49:02: netdata INFO : STATSD_IN[1] : POLLFD: LISTENER: listening on 'udp:127.0.0.1:8125'
2023-10-31 14:49:02: netdata INFO : STATSD_IN[1] : POLLFD: LISTENER: listening on 'tcp:127.0.0.1:8125'
2023-10-31 14:49:02: netdata INFO : PD[ioping] : PLUGINSD: 'host:PLVULCAUTOMA' connected to '/usr/libexec/netdata/plugins.d/ioping.plugin' running on pid 41844
2023-10-31 14:49:02: netdata INFO : TRAIN[2] : thread created with task id 41848
2023-10-31 14:49:02: netdata INFO : TRAIN[2] : set name of thread 41848 to TRAIN[2]
2023-10-31 14:49:02: netdata INFO : MAIN : NETDATA STARTUP: in 5 ms, start the static threads - next: initialize commands API
2023-10-31 14:49:02: netdata INFO : MAIN : Initializing command server.
2023-10-31 14:49:02: netdata INFO : PD[go.d] : PLUGINSD: 'host:PLVULCAUTOMA' connected to '/usr/libexec/netdata/plugins.d/go.d.plugin' running on pid 41850
2023-10-31 14:49:02: netdata INFO : TRAIN[3] : thread created with task id 41851
2023-10-31 14:49:02: netdata INFO : TRAIN[3] : set name of thread 41851 to TRAIN[3]
2023-10-31 14:49:02: netdata INFO : MAIN : NETDATA STARTUP: in 0 ms, initialize commands API - next: ready
2023-10-31 14:49:02: netdata INFO : MAIN : NETDATA STARTUP: completed in 423 ms. Enjoy real-time performance monitoring!
2023-10-31 14:49:02: netdata INFO : MAIN : /usr/libexec/netdata/plugins.d/anonymous-statistics.sh 'START' '-' '-'
2023-10-31 14:49:02: netdata INFO : PD[apps] : PLUGINSD: 'host:PLVULCAUTOMA' connected to '/usr/libexec/netdata/plugins.d/apps.plugin' running on pid 41854
2023-10-31 14:49:02: netdata INFO : ACLK_MAIN : Wait before attempting to reconnect in 0.000 seconds
2023-10-31 14:49:02: netdata INFO : ACLK_MAIN : Attempting connection now
2023-10-31 14:49:02: netdata INFO : ACLK_STATS : thread created with task id 41857
2023-10-31 14:49:02: netdata INFO : ACLK_STATS : set name of thread 41857 to ACLK_STATS
2023-10-31 14:49:02: netdata INFO : PD[perf] : PLUGINSD: 'host:PLVULCAUTOMA' connected to '/usr/libexec/netdata/plugins.d/perf.plugin' running on pid 41856
2023-10-31 14:49:02: netdata INFO : PD[perf] : PLUGINSD: plugin called DISABLE. Disabling it.
2023-10-31 14:49:02: netdata INFO : PD[perf] : PLUGINSD: 'host:PLVULCAUTOMA', '/usr/libexec/netdata/plugins.d/perf.plugin' (pid 41856) disconnected after 0 successful data collections (ENDs).
2023-10-31 14:49:02: netdata ERROR : PD[perf] : child pid 41856 exited with code 1.
2023-10-31 14:49:02: netdata ERROR : PD[perf] : PLUGINSD: 'host:PLVULCAUTOMA', '/usr/libexec/netdata/plugins.d/perf.plugin' (pid 41856) exited with error code 1 and haven't collected any data. Disabling it. (errno 22, Invalid argument)
2023-10-31 14:49:02: netdata INFO : PD[perf] : thread with task id 41838 finished
2023-10-31 14:49:02: netdata INFO : PD[ioping] : PLUGINSD: plugin called DISABLE. Disabling it.
2023-10-31 14:49:02: netdata INFO : PD[ioping] : PLUGINSD: 'host:PLVULCAUTOMA', '/usr/libexec/netdata/plugins.d/ioping.plugin' (pid 41844) disconnected after 0 successful data collections (ENDs).
2023-10-31 14:49:02: netdata INFO : PD[python.d] : PLUGINSD: 'host:PLVULCAUTOMA' connected to '/usr/libexec/netdata/plugins.d/python.d.plugin' running on pid 41889
2023-10-31 14:49:02: netdata INFO : PD[debugfs] : PLUGINSD: 'host:PLVULCAUTOMA' connected to '/usr/libexec/netdata/plugins.d/debugfs.plugin' running on pid 41877
2023-10-31 14:49:02: netdata ERROR : PD[ioping] : child pid 41844 exited with code 1.
2023-10-31 14:49:02: netdata ERROR : PD[ioping] : PLUGINSD: 'host:PLVULCAUTOMA', '/usr/libexec/netdata/plugins.d/ioping.plugin' (pid 41844) exited with error code 1 and haven't collected any data. Disabling it. (errno 22, Invalid argument)
2023-10-31 14:49:02: netdata INFO : PD[ioping] : thread with task id 41836 finished
2023-10-31 14:49:02: netdata ERROR : P[cgroups] : child pid 41893 exited with code 127.
2023-10-31 14:49:02: netdata ERROR : P[cgroups] : child pid 41896 exited with code 127.
2023-10-31 14:49:02: netdata INFO : PD[charts.d] : PLUGINSD: plugin called DISABLE. Disabling it.
2023-10-31 14:49:02: netdata INFO : PD[charts.d] : PLUGINSD: 'host:PLVULCAUTOMA', '/usr/libexec/netdata/plugins.d/charts.d.plugin' (pid 41840) disconnected after 0 successful data collections (ENDs).
2023-10-31 14:49:02: netdata INFO : PD[charts.d] : PLUGINSD: 'host:PLVULCAUTOMA', '/usr/libexec/netdata/plugins.d/charts.d.plugin' (pid 41840) does not generate useful output but it reports success (exits with 0). Will not start it again - it is now disabled..
2023-10-31 14:49:02: netdata ERROR : ACLK_MAIN : Expected response to start with "HTTP/1.1 " (errno 11, Resource temporarily unavailable)
2023-10-31 14:49:02: netdata ERROR : ACLK_MAIN : Error parsing HTTP response
2023-10-31 14:49:02: netdata ERROR : ACLK_MAIN : Error reading or parsing response from server (errno 22, Invalid argument)
2023-10-31 14:49:02: netdata ERROR : ACLK_MAIN : Failed to CONNECT with proxy
2023-10-31 14:49:02: netdata ERROR : ACLK_MAIN : Error trying to contact env endpoint (errno 22, Invalid argument)
2023-10-31 14:49:02: netdata ERROR : ACLK_MAIN : Failed to Get ACLK environment (cannot contact ENV endpoint)
2023-10-31 14:49:02: netdata INFO : ACLK_MAIN : Wait before attempting to reconnect in 1.431 seconds
2023-10-31 14:49:03: netdata INFO : MAIN : /usr/libexec/netdata/plugins.d/anonymous-statistics.sh 'INCOMPLETE_SHUTDOWN' '-' '-'
2023-10-31 14:49:03: netdata INFO : P[proc] : Using now_boottime_usec() for uptime (dt is 9 ms)
2023-10-31 14:49:03: netdata LOG FLOOD PROTECTION too many logs (201 logs in 1 seconds, threshold is set to 200 logs in 1200 seconds). Preventing more logs from process 'netdata' for 1199 seconds.
```
I can’t figure out what is failing, what DNS application are they pointing to? apart from app.netdata.cloud does it point to another?
---
### Author:  [@underhood](https://community.netdata.cloud/u/underhood)
#### Post date: [November 2, 2023, 8:22am UTC](https://community.netdata.cloud/t/aclk-main-error-connection-problem-with-proxy/4809/10 "2023-11-02T08:22:01Z")
Any information about the proxy server and it’s configuration? What is the actual proxy server SQUID, ntlm?
Maybe I can add log there
`2023-10-31 14:49:02: netdata ERROR : ACLK_MAIN : Expected response to start with "HTTP/1.1 " (errno 11, Resource temporarily unavailable)`
to actually print what we received instead which could give us some hints.
Currently I can just see the proxy doesnt reply with HTTP/1.1 as expected but can’t tell why.
---
### Author:  [@Jonathan\_Stampella](https://community.netdata.cloud/u/Jonathan_Stampella)
#### Post date: [November 3, 2023, 12:30pm UTC](https://community.netdata.cloud/t/aclk-main-error-connection-problem-with-proxy/4809/12 "2023-11-03T12:30:39Z")
The type of proxy we use is “IP-based authentication proxy”
with telnet not working 
I have enabled what is port 80 and 443 of the url app.netdata.cloud, is it only that url to which the netdata app makes requests and those ports?
Thanks
---
### Author:  [@Jonathan\_Stampella](https://community.netdata.cloud/u/Jonathan_Stampella)
#### Post date: [November 3, 2023, 4:02pm UTC](https://community.netdata.cloud/t/aclk-main-error-connection-problem-with-proxy/4809/13 "2023-11-03T16:02:22Z")
I attach more details of the system
##########################################
netdata -W buildinfo
```auto
Packaging:
Netdata Version ____________________________________________ : v1.43.2
Installation Type __________________________________________ : oci
Package Architecture _______________________________________ : x86_64
Package Distro _____________________________________________ : unknown
Configure Options __________________________________________ : '--prefix=/usr' '--sysconfdir=/etc' '--localstatedir=/var' '--libexecdir=/usr/libexec' '--libdir=/usr/lib' '--with-math' '--with-user=netdata' '--without-bundled-protobuf' '--disable-dependency-tracking' '--enable-lto' '--disable-ebpf' 'CFLAGS=-ffunction-sections -fdata-sections -O2 -funroll-loops -pipe' 'LDFLAGS=-Wl,--gc-sections'
Default Directories:
User Configurations ________________________________________ : /etc/netdata
Stock Configurations _______________________________________ : /usr/lib/netdata/conf.d
Ephemeral Databases (metrics data, metadata) _______________ : /var/cache/netdata
Permanent Databases ________________________________________ : /var/lib/netdata
Plugins ____________________________________________________ : /usr/libexec/netdata/plugins.d
Static Web Files ___________________________________________ : /usr/share/netdata/web
Log Files __________________________________________________ : /var/log/netdata
Lock Files _________________________________________________ : /var/lib/netdata/lock
Home _______________________________________________________ : /var/lib/netdata
Operating System:
Kernel _____________________________________________________ : Linux
Kernel Version _____________________________________________ : 4.18.0-348.12.2.el8_5.x86_64
Operating System ___________________________________________ : Red Hat Enterprise Linux
Operating System ID ________________________________________ : rhel
Operating System ID Like ___________________________________ : fedora
Operating System Version ___________________________________ : 8.5 (Ootpa)
Operating System Version ID ________________________________ : 3.18.4
Detection __________________________________________________ : /host/etc/os-release
Hardware:
CPU Cores __________________________________________________ : 8
CPU Frequency ______________________________________________ : 3000000000
CPU Architecture ___________________________________________ : 67240763392
RAM Bytes __________________________________________________ : 1428076625920
Disk Capacity ______________________________________________ : x86_64
Virtualization Technology __________________________________ : vmware
Virtualization Detection ___________________________________ : provided
Container:
Container __________________________________________________ : docker
Container Detection ________________________________________ : dockerenv
Container Orchestrator _____________________________________ : none
Container Operating System _________________________________ : Alpine Linux
Container Operating System ID ______________________________ : alpine
Container Operating System ID Like _________________________ : unknown
Container Operating System Version _________________________ : unknown
Container Operating System Version ID ______________________ : 3.18.4
Container Operating System Detection _______________________ : /etc/os-release
Features:
Built For __________________________________________________ : Linux
Netdata Cloud ______________________________________________ : YES
Health (trigger alerts and send notifications) _____________ : YES
Streaming (stream metrics to parent Netdata servers) _______ : YES
Replication (fill the gaps of parent Netdata servers) ______ : YES
Streaming and Replication Compression ______________________ : YES (lz4)
Contexts (index all active and archived metrics) ___________ : YES
Tiering (multiple dbs with different metrics resolution) ___ : YES (5)
Machine Learning ___________________________________________ : YES
Database Engines:
dbengine ___________________________________________________ : YES
alloc ______________________________________________________ : YES
ram ________________________________________________________ : YES
map ________________________________________________________ : YES
save _______________________________________________________ : YES
none _______________________________________________________ : YES
Connectivity Capabilities:
ACLK (Agent-Cloud Link: MQTT over WebSockets over TLS) _____ : YES
static (Netdata internal web server) _______________________ : YES
h2o (web server) ___________________________________________ : NO
WebRTC (experimental) ______________________________________ : NO
Native HTTPS (TLS Support) _________________________________ : YES
TLS Host Verification ______________________________________ : YES
Libraries:
LZ4 (extremely fast lossless compression algorithm) ________ : YES
zlib (lossless data-compression library) ___________________ : YES
Judy (high-performance dynamic arrays and hashtables) ______ : YES (bundled)
dlib (robust machine learning toolkit) _____________________ : YES (bundled)
protobuf (platform-neutral data serialization protocol) ____ : YES (system)
OpenSSL (cryptography) _____________________________________ : YES
libdatachannel (stand-alone WebRTC data channels) __________ : NO
JSON-C (lightweight JSON manipulation) _____________________ : YES
libcap (Linux capabilities system operations) ______________ : NO
libcrypto (cryptographic functions) ________________________ : YES
libm (mathematical functions) ______________________________ : YES
jemalloc ___________________________________________________ : NO
TCMalloc ___________________________________________________ : NO
Plugins:
apps (monitor processes) ___________________________________ : YES
cgroups (monitor containers and VMs) _______________________ : YES
cgroup-network (associate interfaces to CGROUPS) ___________ : YES
proc (monitor Linux systems) _______________________________ : YES
tc (monitor Linux network QoS) _____________________________ : YES
diskspace (monitor Linux mount points) _____________________ : YES
freebsd (monitor FreeBSD systems) __________________________ : NO
macos (monitor MacOS systems) ______________________________ : NO
statsd (collect custom application metrics) ________________ : YES
timex (check system clock synchronization) _________________ : YES
idlejitter (check system latency and jitter) _______________ : YES
bash (support shell data collection jobs - charts.d) _______ : YES
debugfs (kernel debugging metrics) _________________________ : YES
cups (monitor printers and print jobs) _____________________ : NO
ebpf (monitor system calls) ________________________________ : NO
freeipmi (monitor enterprise server H/W) ___________________ : YES
nfacct (gather netfilter accounting) _______________________ : NO
perf (collect kernel performance events) ___________________ : YES
slabinfo (monitor kernel object caching) ___________________ : YES
Xen ________________________________________________________ : NO
Xen VBD Error Tracking _____________________________________ : NO
Exporters:
AWS Kinesis ________________________________________________ : NO
GCP PubSub _________________________________________________ : NO
MongoDB ____________________________________________________ : YES
Prometheus (OpenMetrics) Exporter __________________________ : YES
Prometheus Remote Write ____________________________________ : YES
Graphite ___________________________________________________ : YES
Graphite HTTP / HTTPS ______________________________________ : YES
JSON _______________________________________________________ : YES
JSON HTTP / HTTPS __________________________________________ : YES
OpenTSDB ___________________________________________________ : YES
OpenTSDB HTTP / HTTPS ______________________________________ : YES
All Metrics API ____________________________________________ : YES
Shell (use metrics in shell scripts) _______________________ : YES
Debug/Developer Features:
Trace All Netdata Allocations (with charts) ________________ : NO
Developer Mode (more runtime checks, slower) _______________ : NO
```
I did a test by removing the proxy from the netdata.conf file. and I get these errors:
```auto
2023-11-03 17:28:20: netdata ERROR : ACLK_MAIN : Failed to connect to '54.198.178.11', port '443' (errno 111, Connection refused)
2023-11-03 17:28:20: netdata ERROR : ACLK_MAIN : Failed to connect to '44.207.131.212', port '443' (errno 111, Connection refused)
2023-11-03 17:28:20: netdata ERROR : ACLK_MAIN : Failed to connect to '44.196.50.41', port '443' (errno 111, Connection refused)
2023-11-03 17:28:20: netdata ERROR : ACLK_MAIN : Error connecting TCP socket to "app.netdata.cloud"
2023-11-03 17:28:20: netdata ERROR : ACLK_MAIN : Error trying to contact env endpoint (errno 22, Invalid argument)
2023-11-03 17:28:20: netdata ERROR : ACLK_MAIN : Failed to Get ACLK environment (cannot contact ENV endpoint)
2023-11-03 17:28:20: netdata INFO : ACLK_MAIN : Wait before attempting to reconnect in 1.714 seconds
```
but if I put it in the .conf file
[nube]
proxy = http://\*\*\*\*\*\*\*\*\*\*\*\*:8080
```auto
2023-11-03 17:31:31: netdata ERROR : ACLK_MAIN : Expected response to start with "HTTP/1.1 " (errno 11, Resource temporarily unavailable)
2023-11-03 17:31:31: netdata ERROR : ACLK_MAIN : Error parsing HTTP response
2023-11-03 17:31:31: netdata ERROR : ACLK_MAIN : Error reading or parsing response from server (errno 22, Invalid argument)
2023-11-03 17:31:31: netdata ERROR : ACLK_MAIN : Failed to CONNECT with proxy
2023-11-03 17:31:31: netdata ERROR : ACLK_MAIN : Error trying to contact env endpoint (errno 22, Invalid argument)
2023-11-03 17:31:31: netdata ERROR : ACLK_MAIN : Failed to Get ACLK environment (cannot contact ENV endpoint)
2023-11-03 17:31:31: netdata INFO : ACLK_MAIN : Wait before attempting to reconnect in 1.564 seconds
```
---
### Author:  [@Jonathan\_Stampella](https://community.netdata.cloud/u/Jonathan_Stampella)
#### Post date: [December 19, 2023, 3:32pm UTC](https://community.netdata.cloud/t/aclk-main-error-connection-problem-with-proxy/4809/14 "2023-12-19T15:32:54Z")
something new?
thank you
---
### Author:  [@ars](https://community.netdata.cloud/u/ars)
#### Post date: [May 14, 2024, 9:13pm UTC](https://community.netdata.cloud/t/aclk-main-error-connection-problem-with-proxy/4809/15 "2024-05-14T21:13:21Z")
Same problem.
Sniffer shows HTTP CONNECT message without “Host” header. Nginx proxy reply 400 “Bad Request”.
Netdata agent MUST include Host header in CONNECT request message.
> **[RFC 2616: Hypertext Transfer Protocol -- HTTP/1.1](https://datatracker.ietf.org/doc/html/rfc2616#section-14.23)**
>
> HTTP has been in use by the World-Wide Web global information initiative since 1990. This specification defines the protocol referred to as "HTTP/1.1", and is an update to RFC 2068. \[STANDARDS-TRACK\]
Fix please.
---
### Author:  [@ilyam8](https://community.netdata.cloud/u/ilyam8)
#### Post date: [May 16, 2024, 6:49am UTC](https://community.netdata.cloud/t/aclk-main-error-connection-problem-with-proxy/4809/16 "2024-05-16T06:49:31Z")
@ars hey, thanks. Fixed in [Include the Host in the HTTP header by stelfrag · Pull Request #17670 · netdata/netdata · GitHub](https://github.com/netdata/netdata/pull/17670).
---
### Author:  [@ars](https://community.netdata.cloud/u/ars)
#### Post date: [May 22, 2024, 10:31am UTC](https://community.netdata.cloud/t/aclk-main-error-connection-problem-with-proxy/4809/17 "2024-05-22T10:31:43Z")
@ilyam8 hey, another problem after checks [v1.45.5](https://github.com/netdata/netdata/releases/tag/v1.45.5)
CONNECT to **app.netdata.cloud** is correct now. Thanks!
But CONNECT to **mqtt.netdata.cloud** not fixed ☹
---
### Author:  [@hugo](https://community.netdata.cloud/u/hugo)
#### Post date: [May 22, 2024, 12:18pm UTC](https://community.netdata.cloud/t/aclk-main-error-connection-problem-with-proxy/4809/18 "2024-05-22T12:18:37Z")
Thanks for reporting it @ars , we confirm the issue and are working on a fix [Include the Host in the HTTP header (mqtt) by stelfrag · Pull Request #17731 · netdata/netdata · GitHub](https://github.com/netdata/netdata/pull/17731)
---
### Author:  [@hugo](https://community.netdata.cloud/u/hugo)
#### Post date: [May 23, 2024, 8:15am UTC](https://community.netdata.cloud/t/aclk-main-error-connection-problem-with-proxy/4809/19 "2024-05-23T08:15:37Z")
The mentioned PR is merged and the fix is available on the latest nightly release.
---
### Author:  [@ars](https://community.netdata.cloud/u/ars)
#### Post date: [June 7, 2024, 9:38am UTC](https://community.netdata.cloud/t/aclk-main-error-connection-problem-with-proxy/4809/20 "2024-06-07T09:38:29Z")
Thanks! Works great!