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No agent connectivity when behind proxy #22020

@dk381

Description

@dk381

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Is there an existing issue for this?

  • I have searched the existing issues

Version

11.0.2

Bug description

We're behind a proxy in our business and if I add the proxy to GLPI Settings, the agent connectivity does not work anymore. It seems like GLPI wants to send everything through the proxy in the general settings, but our endpoints are not behind the proxy. Thus, GLPI cannot talk to the agents anymore.

GLPI Version: 11.0.2
GLPI Agent Version: 1.15

Relevant log output

Cannot find any matching log output

Page URL

No response

Steps To reproduce

  1. User GLPI Agents
  2. Enter proxy information in General > System > Proxy

Your GLPI setup information

GLPI information
GLPI: 11.0.2 ( => /srv/www/htdocs/glpi)
Installation mode: TARBALL
Current language: de_DE
Source Integrity: 1 files changed
  A: inc/downstream.php
Server
Operating system: Linux srv-xxxx 6.17.6-1-default #​1 SMP PREEMPT_DYNAMIC Wed Oct 29 17:21:06 UTC 2025 (9e452b6)
x86_64

PHP: 8.4.14 apache2handler

PHP extensions: Core, date, libxml, pcre, filter, hash, json, random, Reflection, SPL, session, standard, SimpleXML, xml,
apache2handler, bcmath, bz2, ctype, curl, dom, mbstring, fileinfo, gd, iconv, intl, ldap, exif, mysqlnd, openssl, PDO, zlib,
sodium, sqlite3, tokenizer, xmlwriter, zip, Phar, mysqli, pdo_mysql, pdo_sqlite, xmlreader, Zend OPcache

Setup: disable_functions="" max_execution_time="30" max_input_vars="1000" memory_limit="128M" post_max_size="512M"
session.cookie_secure="1" session.cookie_httponly="1" session.cookie_samesite="" session.save_handler="files"
upload_max_filesize="512M"

Web server: Apache ()

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36
Edg/142.0.0.0

Database:

Server Software: MariaDB package

Server Version: 10.11.14-MariaDB

Server SQL Mode: STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION

Parameters: [email protected]/glpi

Host info: srv-mariadb.xxxx via TCP/IP

Requirements:
PHP version (8.4.14) is supported.
OS and PHP are relying on 64 bits integers.
Sessions configuration is OK.
Allocated memory is sufficient.
Following extensions are installed: dom, fileinfo, filter, libxml, simplexml, tokenizer, xmlreader,
xmlwriter.
mysqli extension is installed
curl extension is installed
gd extension is installed
intl extension is installed
mbstring extension is installed
zlib extension is installed
bcmath extension is installed
The constant
SODIUM_CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NPUBBYTES is present.
openssl extension is installed
Database engine version (10.11.14) is
supported.
The log file has been created successfully.
Write access to /var/lib/glpi/_cache has been validated.
Write access to /var/lib/glpi/_cron has been validated.
Write access to /var/lib/glpi has been validated.
Write access to /var/lib/glpi/_graphs has been validated.
Write access to /var/lib/glpi/_lock has been validated.
Write access to /var/lib/glpi/_pictures has been validated.
Write access to /var/lib/glpi/_plugins has been validated.
Write access to /var/lib/glpi/_rss has been validated.
Write access to /var/lib/glpi/_sessions has been validated.
Write access to /var/lib/glpi/_tmp has been validated.
Write access to /var/lib/glpi/_uploads has been validated.
For security reasons, SELinux
mode should be Enforcing.

Sessions configuration is secured.
exif extension is installed
ldap extension is installed
Following extensions are installed: bz2,
Phar, zip.
Zend OPcache extension is installed
Following extensions are installed:
ctype, iconv, sodium.
Write access to
/var/lib/glpi/plugins has been validated.
Timezones seems not loaded, see
https://glpi-install.readthedocs.io/en/latest/timezones.html.

GLPI constants
GLPI_ROOT: "/srv/www/htdocs/glpi"
GLPI_VERSION: "11.0.2"
GLPI_SCHEMA_VERSION: "11.0.2@ea2dbba0e1edbf5128d73bdb23c2c9b9f68468ba"
GLPI_FILES_VERSION: "11.0.2-52505ef9"
GLPI_MIN_PHP: "8.2"
GLPI_MAX_PHP: "8.5"
GLPI_YEAR: "2025"
GLPI_I18N_DIR: "/srv/www/htdocs/glpi/locales"
GLPI_CONFIG_DIR: "/etc/glpi/"
GLPI_VAR_DIR: "/var/lib/glpi"
GLPI_LOG_DIR: "/var/log/glpi"
GLPI_MARKETPLACE_DIR: "/var/lib/glpi/plugins"
GLPI_ENVIRONMENT_TYPE: "production"
GLPI_ALLOW_IFRAME_IN_RICH_TEXT: false
GLPI_SERVERSIDE_URL_ALLOWLIST: ["^\n (http|https|feed)://
# protocol\n (\n (?:\n
(?:xn--[a-z0-9-]++\.)*+xn--[a-z0-9-]++ # a domain name using punycode\n
|\n (?:[\pL\pN\pS\pM\-\]++\.)+[\pL\pN\pM]++ # a multi-level domain
name\n |\n [a-z0-9\-\
]++
# a single-level domain name\n )\.?\n |
# or\n \d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}
# an IP address\n | #
or\n \[\n
(?:(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){6})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:::(?:(?:(?:[0-9a-f]{1,4})):){5})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:[0-9a-f]{1,4})))?::(?:(?:(?:[0-9a-f]{1,4})):){4})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,1}(?:(?:[0-9a-f]{1,4})))?::(?:(?:(?:[0-9a-f]{1,4})):){3})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,2}(?:(?:[0-9a-f]{1,4})))?::(?:(?:(?:[0-9a-f]{1,4})):){2})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,3}(?:(?:[0-9a-f]{1,4})))?::(?:(?:[0-9a-f]{1,4})):)(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,4}(?:(?:[0-9a-f]{1,4})))?::)(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,5}(?:(?:[0-9a-f]{1,4})))?::)(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,6}(?:(?:[0-9a-f]{1,4})))?::))))\n
\] # an IPv6 address\n
)\n (?:/ (?:[\pL\pN\pS\pM\-._\
!$&'()+,;=:@]|%[0-9A-Fa-f]{2}) )* # a path\n
(?:\? (?:[\pL\pN\-._\~!$&'\\+,;=:@/?]|%[0-9A-Fa-f]{2}) )? # a query (optional)\n
$~ixuD"]
GLPI_DISALLOWED_UPLOADS_PATTERN: "/\.(php\d*|phar)$/i"
GLPI_TELEMETRY_URI: "https://telemetry.glpi-project.org"
GLPI_INSTALL_MODE: "TARBALL"
GLPI_NETWORK_MAIL: "[email protected]"
GLPI_NETWORK_SERVICES: "https://services.glpi-network.com"
GLPI_MARKETPLACE_ENABLE: 3
GLPI_MARKETPLACE_PRERELEASES: false
GLPI_MARKETPLACE_ALLOW_OVERRIDE: true
GLPI_MARKETPLACE_MANUAL_DOWNLOADS: true
GLPI_USER_AGENT_EXTRA_COMMENTS: ""
GLPI_DOCUMENTATION_ROOT_URL: "https://links.glpi-project.org"
GLPI_DISABLE_ONLY_FULL_GROUP_BY_SQL_MODE: "1"
GLPI_LOG_LVL: "warning"
GLPI_SKIP_UPDATES: false
GLPI_STRICT_ENV: false
GLPI_AJAX_DASHBOARD: "1"
GLPI_CALDAV_IMPORT_STATE: 0
GLPI_CENTRAL_WARNINGS: "1"
GLPI_SYSTEM_CRON: false
GLPI_TEXT_MAXSIZE: "4000"
GLPI_WEBHOOK_ALLOW_RESPONSE_SAVING: "0"
GLPI_WEBHOOK_CRA_MANDATORY: false
GLPI_ALTCHA_MODE: "interactive"
GLPI_ALTCHA_MAX_NUMBER: 50000
GLPI_ALTCHA_EXPIRATION_INTERVAL: "PT20M"
GLPI_DOC_DIR: "/var/lib/glpi"
GLPI_CACHE_DIR: "/var/lib/glpi/_cache"
GLPI_CRON_DIR: "/var/lib/glpi/_cron"
GLPI_GRAPH_DIR: "/var/lib/glpi/_graphs"
GLPI_LOCAL_I18N_DIR: "/var/lib/glpi/_locales"
GLPI_LOCK_DIR: "/var/lib/glpi/_lock"
GLPI_PICTURE_DIR: "/var/lib/glpi/_pictures"
GLPI_PLUGIN_DOC_DIR: "/var/lib/glpi/_plugins"
GLPI_RSS_DIR: "/var/lib/glpi/_rss"
GLPI_SESSION_DIR: "/var/lib/glpi/_sessions"
GLPI_TMP_DIR: "/var/lib/glpi/_tmp"
GLPI_UPLOAD_DIR: "/var/lib/glpi/_uploads"
GLPI_INVENTORY_DIR: "/var/lib/glpi/_inventories"
GLPI_THEMES_DIR: "/var/lib/glpi/_themes"
GLPI_PLUGINS_DIRECTORIES: ["/var/lib/glpi/plugins","/srv/www/htdocs/glpi/plugins"]
GLPI_NETWORK_REGISTRATION_API_URL: "https://services.glpi-network.com/api/registration/"
GLPI_MARKETPLACE_PLUGINS_API_URI: "https://services.glpi-network.com/api/marketplace/"
LDAP Verzeichnisse
Server: 'srv-dc1.graband.de',
Port: '389',
BaseDN: 'DC=graband,DC=de',
Connection filter: '(&(objectClass=user)(objectCategory=person)(!(userAccountControl:1.2.840.113556.1.4.803:=2))(mail=*))',
RootDN: 'CN=admin-tk-dom,OU=Benutzer,OU=IT-Infrastruktur,DC=GRABAND,DC=de',
Use TLS: none
SQL Replikationen
Not active
Notifications
Way of sending emails: PHP
Plugins list
order                Name: Bestellverwaltung              Version: 2.12.2     State: Aktiv
Install Method: Marketplace
cmdb Name: CMDB Version: 3.1.2 State: Nicht installiert
Install Method: Marketplace
connections Name: Connections Version: 11.0.1 State: Aktiv
Install Method: Marketplace
glpiinventory Name: GLPI Inventory Version: 1.6.2 State: Aktiv
Install Method: Marketplace
glpisaml Name: Glpisaml Version: 1.1.12 State: Wurde ersetzt
Install Method: Marketplace
itilcategorygroups Name: ItilCategory Groups Version: 2.6.1 State: Aktiv
Install Method: Marketplace
resources Name: Mitarbeiter Version: 4.0.2 State: Aktiv
Install Method: Marketplace
samlsso Name: samlsso Version: 1.2.2 State: Aktiv
Install Method: Marketplace
manufacturersimports Name: Suppliers imports Version: 3.1.1 State: Aktiv
Install Method: Marketplace
timelineticket Name: Timeline of tickets Version: 10.0+1.2 State: Installiert / nicht aktiviert
Install Method: Marketplace

Anything else?

No response

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