Vyacheslav

Installing and using collectl on Linux

Collectl is a console tool for monitoring system performance and recording results.

OID and MIB list for PBI tuners

For example, I will use PBI DCH-1400P.

Installing Accel-ppp on Ubuntu 18

On the test I will install Accel-ppp in Ubuntu Server 18.04.
I downloaded from the official site “ubuntu-18.04.2-live-server-amd64”.

How to connect to VirtualBox on the network

Sometimes I experiment on virtual machines with Linux Ubuntu Server and in order to be able to connect to them by IP address, open VirtualBox, select the desired machine, open “Configure” – “Network” and see that in the “Adapter 1″ tab there is a standard tick on ” Enable network adapter “and” Connection type: NAT “is selected. It is necessary for the Internet to work on the virtual machine.
You can change to “Network Bridge” and the virtual machine will try to get IP in the same network as the physical computer, for example from a router, and will also be visible on the network.

How to configure Asterisk AMI

Asterisk Managment Interface (AMI) – a powerful API interface for Asterisk, allows you to manage, execute commands, receive notifications about events in real time, etc.

How to configure IPTables

IPTables is a command line utility that is the standard interface for managing the firewall.

IPTables rules for Asterisk AMI

Suppose the default “iptables -P INPUT ACCEPT” for all connections (and if DROP, which is very desirable, then we do not use all the DROP rules below, we only perform ACCEPT).

Since Asterisk AMI usually works on TCP port 5038, in order to open it we will execute:

Tracking file changes via Zabbix

I will give an example of checking the integrity of a file through checksum calculation using Zabbix agent.

How to solve the error “Unknown Object Identifier (Index out of range: XXX (ifIndex))”

Once I made a Zabbix template for drawing traffic graphs from GPON ports on Huawei SmartAX MA5683T.

From Linux, I looked at the interface indexes with the command:

How to fix error 0x80070570. Windows can not install the necessary files

I met once when installing Windows the following error: