Author Archives: Vyacheslav

Solving the error in Zabbix “snmp_parse_oid(): cannot parse OID “MIB””

I noticed once on the new system after importing Zabbix templates that not all data elements work successfully.

And the error is displayed:

snmp_parse_oid(): cannot parse OID “MIB”

As it turned out, the data elements have MIBs instead of OIDs that are not in the system.
For example, the MIB for incoming traffic on the first interface will be ifInOctets.1, and OID 1.3.6.1.2.1.2.2.1.10.1
Here in more detail you can see examples SNMP OID and MIB for interfaces
Therefore, the solution to this error will be either editing all the elements of the template, we will change the MIB to OID, or the option is easier – to install MIBs that are not in the system, if these are standard MIBs, then they can be installed as I described in this article – Installing MIB in Ubuntu and Solving the Error “SNMP Cannot Find Module …”

In the end, we will necessarily restart snmpd and zabbix-server:

sudo service snmpd restart
sudo service zabbix-server restart

Done.

NewActive.exe plug-in for Partizan cameras

I noticed once that the web interface of Partizan IP cameras does not open.
When you log in through Internet Explorer, it’s very rare to see the “Download” link for downloading the plug-in/driver, even if the ActiveX controls and everything else are enabled in the browser settings.
So I posted it so it was easier to download and install it beforehand.

Continue reading “NewActive.exe plug-in for Partizan cameras”

Manual “Basic configuration commands BDCOM P3310B”

Format: PDF
Size: ~ 2 MB
Language: English
Download manual “Basic configuration commands BDCOM P3310B”
https://files.ixnfo.com/Manuals/BDCOM/P3310/BDCOM_P3310B_Basic_Configuration_Commands.pdf

Format: PDF
Size: ~ 1 MB
Language: Russian
Download Quick Setup Guide for BDCOM P3310B
https://files.ixnfo.com/Manuals/BDCOM/P3310/Manual_P3310_Rus_22022013.pdf

See also my article – Configuring BDCOM P3310B-2AC EPON

Configure Firefox for anonymity

To get started, type the following in the address bar of the Firefox browser:

about:config

Below I will describe what settings transmit information about the user, for faster search, you can copy and paste the parameter into the search bar.

Google Safe Browsing (the parameter includes the transmission of information about the sites visited by the user on Google and prevents visits to sites with malicious software):

browser.safebrowsing.enabled
browser.safebrowsing.downloads.enabled
browser.safebrowsing.malware.enabled

Sending stability and performance reports to Firefox:

datareporting.healthreport.service.enabled
datareporting.healthreport.uploadEnabled

Usage statistics:

toolkit.telemetry.enabled

The parameter transmits the real IP address even if a VPN connection or TOR is used:

media.peerconnection.enabled

Enabling integration with the Pocket service:

browser.pocket.enabled

Using geolocation:

geo.enabled

Firefox connects to third-party servers without permission:

loop.enabled

Saving typed text in the search, for further tips:

browser.search.suggest.enabled

Enabling locks to track user information:

privacy.trackingprotection.enabled

Monitoring the number of Ubiquiti sector clients by SSH from Zabbix

On the test I’ll give an example of getting the number of clients connected to the usual sectoral antenna Ubiquiti AirMax Rocket M5.
We will receive the data via SSH.

To test once we connect to the device (the first time when connecting, type yes and press enter):

sudo -u zabbix ssh -p 22 admin@192.168.0.55

Now in Zabbix we add the data element to the template or host, for example with the name “Template Ubiquiti Rocket M5 Sector”:

Name: any
Type: SSH agent
Key: ssh.run[clients,,22,utf8]
Authentication method: Password
Username: NAME
Password: PASSWORD
Executed script: the command executed on the device (see below)

Example of the command displayed the number of connected clients:

wstalist |grep "mac" |wc -l

Accordingly, we create a graph for the data element, as well as the trigger:

Name: On the sector antenna {HOST.NAME} > 40 clients
Expression: {Template Ubiquiti Rocket M5 Sector:ssh.run[clients,,22,utff8].last(#1)}>40

See also:
Configuring SSH checks in Zabbix

How to troubleshoot Samba autorun in Linux?

I installed and configured Samba once on the next Ubuntu Server 14.04.5 LTS as described in this article Installing and Configuring Samba in Linux.

And after restarting the system, not everything was started, smbd and nmbd were started, if they can be restarted like this:

sudo restart smbd
sudo restart nmbd

But you can not connect to the disk and you still had to execute the command:

sudo service samba start

For samba to automatically start at system startup, execute the following command:

sudo update-rc.d samba defaults

Done.

Solving the error of “Interface (‘VirtualBox Host-Only Ethernet Adapter’) is not a Host-Only Adapter interface”

I noticed once in VirtualBox when starting a virtual machine the following error:

Interface (‘VirtualBox Host-Only Ethernet Adapter’) is not a Host-Only Adapter interface (VERR_INTERNAL_ERROR).

As it turned out in the device manager of the system and in network connections for some reason, the network interface disappeared “VirtualBox Host-Only Network”

For this, the easiest and fastest solution to an error will be to update or reinstall VirtualBox, virtual machines and settings will remain thereafter.
And also in the virtual machine, at which start there was an error, nano to specify the same network parameters.

Done.