least one group. • CPU index for system.cpu.util key on Linux now starts with 0. • Key vfs.fs.size returns data in bytes for all operating systems now. • Key vfs.fs.size now takes into account reserved diskspace become a serious issue. Zabbix 1.8 brings many different improvements to the performance in several key areas. 4.1.1 Increased Zabbix server and proxy performance Doing the main work behind the scenes 9]} • {ITEM.LASTVALUE[1..9]} • {HOST.CONN[1..9]} {HOST.DNS[1..9]} {IPADDRESS[1..9]} • {TRIGGER.KEY[1..9]} • {HOSTNAME[1..9]} • {ITEM.NAME[1..9]} • {PROFILE.*[1..9]} • {EVENT.ACK.STATUS} • {EVENT

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377 Virtual machine discovery key fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380 10 fast-growing log files More advanced options are available for dealing with fast-growing log files. The key issue with such files is the enormous number of messages, which are written to the log files in certain Configuration parameters Flexible item key parameters for alias in agent configuration Zabbix agent configuration file parameter Alias now supports setting flexible key parameters. For instance, now it is

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 386 2 Virtual machine discovery key fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 389 10 agent and new commandline options for zabbix_get and zabbix sender. RSA certificates or pre-shared key (PSK) can be configured and used for encryption per host and proxy. For more information, see the operational mode once per day. The current operational mode can be checked with zabbix[vcache,cache,mode] key. See the internal check documentation. 5.20.5 Zabbix agent crash log on Windows platforms Zabbix

applications from various geographical locations. Also new items ”Last error message of scenario ’$1’” with key web.test.error[] will be added to all existing scenarios during database upgrade ...and ’description’ is now ’name’ Added {ITEM.DESCRIPTION} and {ITEM.KEY} macros. 5.3.2 Improved items system.localtime key now supports parameters: • utc (default) - returns Unix timestamp like parameter handling was changed. Previously, only one parameter was accepted. Starting with Zabbix 2.0, the key syntax conforms to other types of items and multiple comma-separated parameters may be passed. Additionally

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420 1 Virtual machine discovery key fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 424 11 Support of LLD macros in the function parameters of graph prototype name simple macros like {host:key[].func()} has been added. 20 Return code check for scripts and commands Now Zabbix checks exit codes shapes. Its value is not updated if the map name is changed, for example, in another tab. * The ''{host:key.function(parameter)}'' macro is now also supported in map shapes: Frontend improvements • When selecting

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 467 1 Virtual machine discovery key fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 471 11 Zabbix will automatically extract a macro and value if an array field uses the {#MACRO} syntax as a key. Any new native discovery checks will use the new syntax without the ”data” elements. When processing you must specify the configuration file (if it is not in the default location). -t --test key> Test specified item and exit. Note: To return user parameter results as well, you must specify the

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301 1 Virtual machine discovery key fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304 10 private key the client private key file must be specified separately in the following field • SSL key file - specify the client private key • SSL key password - specify the client private key password password if the key is encrypted The new SSLCertLocation and SSLKeyLocation server parameters determine the path to client certificate and private key files. Clearing history and trend data A Clear history

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303 Virtual machine discovery key fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307 10 item values in graph names is made possible starting with Zabbix 2.2 by using the standard {host:key.func(param)} macro syntax. Similarly to map labels, only avg(), last(), max() and min() functions mapping is supported as well. 10 Additionally, LLD macros are supported in the parameters of an item key, making it possible to use a macro like {Cisco switch:ifAlias[{#SNMPINDEX}].last()} {HOST.HOST<1-9>}

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 503 2 Virtual machine discovery key fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 521 3 JSON Zabbix will cache the interface as old protocol and retry the check by sending only the plaintext item key. Zabbix get can now be run with a new option -P --protocol where ”value” is either: • auto plaintext protocol (default); • json - connect using JSON protocol key; • plaintext - connect using plaintext protocol where just the item key is sent. Enhanced item timeout configuration possibilities Timeout

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 517 Virtual machine discovery key fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 532 JSON data[key,] - return data for the specified value name in the Windows Registry key • registry.get[key,,] - list of Windows Registry values or keys located at given key; returns type>',key,string) This is useful for cases when hash-based message authentication code (HMAC) is required for signing requests. MD5 and SHA256 hash types are supported, e. g.: • hmac('md5',key,string)