NetXMS Support Forum

Hi,

if you have DNS names correctly updated, then you can use DNS names of those devices for communications. NetXMS server will periodically (at configuration polls) check if IP address is the same. You can also force server to make those checks more often by changing configuration parameter Objects.Nodes.ResolveDNSToIPOnStatusPoll from "Never" to "Always" or "On failure".

If you have automatic network discovery then you can turn on parameter NetworkDiscovery.UseDNSNameForDiscoveredNodes - when set server will use DNS name instead of IP address for newly discovered nodes. You should have reverse DNS to be set up properly for this feature to work.

Best regards,
Victor

Could you enable SQL trace for some time (this will generate lot of records in log)? Then it will be possible to see all bindings for this query.

You can turn it on while server is running with the following commands in debug console:
debug sql on
debug db.query 9

and to turn back off:
debug sql off
debug db.query -1

Best regards,
Victor

Да, у нас с нескольких сторон есть такие запросы. Думаю сделаем в ближайшем будущем.

Hi,

yes, missing policy database error is related to SQLite issue. We will check today.

Best regards,
Victor

No, NPI files are no longer needed. Package manager deduces package type from file name, and you can adjust it during import if detection went wrong.

Best regards,
Victor

Hi all!

We finally published NetXMS version 4.0. There are lot of new features, changes and improvements, some are visible, some are under the hood. Unfortunately we didn't finish planned changes to UI, so new UI is available as preview alongside old one, and we plan to finalize it during following patch releases.

There are few changes that may cause compatibility issues when migrating from 3.x:

1. Incompatible attributes in NXSL class "DCI": "instance" now refers to instance value (as in {instance} macro), not instance name as before. Instance name can be accessed via attribute "instanceName".
2. Operators print and println in NXSL are now functions, so arguments should be enclosed in brackets as usual for function call.

Below is full change log:

- Two-factor authentication for users
- SMTP implemented as a notification channel and e-mail actions replaced by notification actions
- Added 'DefaultNotificationChannel.SMTP.Html' and 'DefaultNotificationChannel.SMTP.Text' server configuration parametes for default SMTP channel names used by internal functions
- Removed lock for user management view
- Strings "true" and "false" interpreted as boolean values when accessing custom attributes from NXSL
- Database manager can create database and database user before database schema initialization
- OPC UA subagent moved to core product
- Added option to manually create subnet
- Separately configurable timeouts for agent's external parameters and external command execution
- Zoning is enabled by default
- Value of any type can be used as boolean in NXSL
- NXSL operator "in" works for strings and hash maps
- Single-quoted strings in NXSL (without escape characters)
- Multiline string constants in NXSL
- Operators "print" and "println" in NXSL converted to functions
- New methods "contains" and "remove" for NXSL hash maps
- Improved string manipulation functions in NXSL
- Integer division operator in NXSL
- Multi-OID SNMP requests in NXSL
- Macros can be used in object comments
- New threshold type "absolute deviation"
- Added option for L2 network maps to create links using physical links
- Configurable HTTP request method and request data in web service definitions
- Polling intervals can be overridden on object level via custom attributes
- Implemented DCI search on container
- Improved Web API
- Improved SSH subagent
- Inherited object access rights visible in object properties in UI
- Correlated events can be processed in event processing policy
- Escalation level for responsible users
- Structured alarm filter in UI
- Log parser debug output only controlled by debug level for tag logwatch.parser (parser option "trace" is deprectated)
- Added support for multi-select fields in report execution forms
- Improved package deployment via agents
- New event template option "hide from event monitor"
- Reporting server uses XLSX format instead of XLS
- Fixed small isues in object custom attribute inheritance
- Fixed issues:
   NX-1 (New threshold type: absolute deviation)
   NX-251 (Service check for pop3s and smtps)
   NX-436 (Add an option to secure syslog server)
   NX-1354 (Object ACL editor should not allow empty list of users without "inherit access rights" checkbox)
   NX-1382 (NXSL '$dci->instance' has 'instance-name' value)
   NX-1452 (User filter for Process.Count parameter)
   NX-1468 (Status from network map objects is not propagated to map groups)
   NX-1487 (Grace period for automatic template removal)
   NX-1611 (Macro expansion in object comments)
   NX-1660 (Generate event on ICMP status poll failure)
   NX-1673 (DCI Performance tab - {instance-name} doesn't work)
   NX-1698 (SNMP query for printer status string is unreadable)
   NX-1766 (File transfer implementation issues)
   NX-1776 (Forbid deletion of events that are used in thresholds or policies)
   NX-1822 (DCI should stay disabled, if it stops getting discovered by instance discovery and gets discovered again)
   NX-1829 (Misleading error message, when trying to rename protected image in image library)
   NX-1838 (Files in file delivery policy should be exported as part of configuration export)
   NX-1859 (Implement two-factor authentication in NetXMS server)
   NX-1923 (Enforce unique event names)
   NX-1972 (Add extended version of System.Processes table having info on CPU and memory consumption per process)
   NX-2013 (Add ability to send audit log to syslog in UTF-8)
   NX-2025 (Add macro expansion in timer delay and snooze time fields in EPP action properties)
   NX-2062 (Add option to specify community string in CreateSNMPTransport)
   NX-2066 (Add more parameters to events created on server within Windows Event Log synchronization)
   NX-2068 (Rename column "check_responce" in table network_services to "check_response")
   NX-2069 (Collect hardware information about HDD/SSD and network cards on Linux)
   NX-2095 (Add option to access node hardware inventory information from NXSL)
   NX-2098 (New action type "Execute command on remote node via ssh")
   NX-2100 (Add "support level" or "escalation" value to Responsible persons)
   NX-2111 (Add ability to configure web service proxy in node properties)
   NX-2167 (Add context to SYS_SCRIPT_ERROR event)
   NX-2173 (File integrity monitoring)
   NX-2174 (Periodically check telegram API if it's operable)
   NX-2178 (Configurable encoding for SNMP)
   NX-2179 (Configurable encoding for syslog)
   NX-2184 (Notification channels SMTPS support)
   NX-2185 (Certificate pinning for agent tunnels)
   NX-2189 (Typo when interfaces are removed during polling)
   NX-2190 (Add NXSL function that will convert numeric value to human-readable form with multipliers)
   NX-2191 (Ignore node unreachable state when performing manual configuration poll)
   NX-2194 (Add option to access node software inventory information from NXSL)
   NX-2195 (DB Checker inefficiencies with IsDciExists)
   NX-2198 (Alternative data source for agent parameters Hardware.System.* on Linux)
   NX-2199 (Agent parameters to get certificate information from file)
   NX-2200 (Remove length limit on command in NXSL method Node::executeSSHCommand)
   NX-2204 (Agent not recognizing Windows 11)
   NX-2205 (Generate event if LDAP sync failed)
   NX-2207 (Implement System.OS metrics for Linux, AIX, FreeBSD and Solaris)
   NX-2208 (Zone UIN being reused)

Best regards,
Victor

We just published updated agent for Windows (version 3.9.446). This agent version correctly reports operating system name when running on Windows 11 and Windows Server 2022.

Best regards,
Victor

Then most likely netxmsd process cannot create raw sockets. You can grant it with command

sudo setcap cap_net_raw=ep /usr/bin/netxmsd

(use actual path to netxmsd)

Best regards,
Victor

Hi,

unfortunately it is a limitation inside executeSSHCommand function implementation. I've added issue to fix it: https://track.radensolutions.com/issue/NX-2200

Best regards,
Victor

Currently it is not possible. I think we should add SSH probe as part of configuration poll and handle it in a same way as SNMP credentials. It will also allow to generate relevant event when SSH is no longer responding.
You may also try SSH authentication with private key - depending on your procedures it could be easier to just distribute key for NetXMS server once.

Best regards,
Victor

What OS it is? If possible, please provide output of ifconfig -a for Linux or ipconfig /all for Windows.
Do you have NetXMS agent also running on the server? If yes, please provide output of command
nxget -l 127.0.0.1 Net.InterfaceList

Best regards,
Victor

Hi,

yo have to restart Windows service named "NetXMS Core".

Best regards,
Victor

Hi,

on what OS server is running? If Linux, do you run it under root or under dedicated account?

Best regards,
Victor

So, after more digging and experimenting, it looks like a bug in libssh (that one: https://github.com/ParallelSSH/ssh-python/issues/23, https://bugzilla.redhat.com/show_bug.cgi?id=1849069), said to be present in libssh versions up to 0.9.5. I've tested agent with libssh 0.9.6 and it works stable as expected. Master branch behaves a bit better with older libssh because of different timing (caused by internal structure changes), but still runs into this error periodically.
Unfortunately, Ubuntu 20 comes with libssh 0.9.3, and I suppose they will not update it to 0.9.6 or newer. I will add workaround for that bug (interpret remote channel closure as success if some data was received before), that should fix it for our purposes.

Best regards,
Victor

Hi,

I did some more accurate testing and it seems to be my failure - I manage to get same error with agent 3.9, but it works fine if built from master branch. So looks like we already fixed something, I just have to find out what exactly

Best regards,
Victor