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    What is the difference between zabbix agent VS zabbix agent 2

     Difference between zabbix agent VS zabbix agent 2

    This blog describes the differences between the Zabbix agent and the Zabbix agent 2:


    Zabbix agent

    Zabbix agent 2

    Programming language


    Go with some parts in C



    by systemd only (yes on Windows)

    Supported extensions

    Custom loadable modules in C.

    Custom plugins in Go.




    Supported platforms

    Linux, IBM AIX, FreeBSD, NetBSD, OpenBSD, HP-UX, Mac OS X, Solaris: 9, 10, 11, Windows: all desktop and server versions since XP

    Linux, Windows: all desktop and server versions since XP.

    Supported crypto libraries

    GnuTLS 3.1.18 and newer
    OpenSSL 1.0.1, 1.0.2, 1.1.0, 1.1.1
    LibreSSL – tested with versions 2.7.4, 2.8.2 (certain limitations apply, see the Encryption page for details).

    Linux: OpenSSL 1.0.1 and later is supported since Zabbix 4.4.8.
    MS Windows: OpenSSL 1.1.1 or later.
    The OpenSSL library must have PSK support enabled. LibreSSL is not supported.





    A separate active check process for each server/proxy record.

    Single process with automatically created threads.
    The maximum number of threads is determined by the GOMAXPROCS environment variable.


    UNIX: see a list of supported items.

    Windows: see a list of additional Windows-specific items.

    UNIX: All metrics supported by Zabbix agent.
    Additionally, the agent 2 provides Zabbix-native monitoring solution for: Docker, Memcached, MySQL, PostgreSQL, Redis, systemd, and other monitoring targets 

    ConcurrencyActive checks for single server are executed sequentially.Checks from different plugins or multiple checks within one plugin can be executed concurrently.
    Scheduled/flexible intervalsSupported for passive checks only.Supported for passive and active checks.
    Third party trapsnoyes
    Persistent storagenoyes
    Persistent files for log*[] metricsyes (only on Unix)no
    Timeout settingsDefined on an agent level only.Plugin timeout can override the timeout defined on an agent level.
    Changes user at runtimeyes (Unix-like systems only)no (controlled by systemd)
    User-configurable ciphersuitesyesno

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