Vyacheslav, Автор в IT Blog

Solution Registration failed due to STUN server (DNS resolving or connection) error (59) Zoiper

Once I installed the Zoiper application on the iPhone to connect to the telephony server and found an error:

Solution Zabbix housekeeper processes more than 75% busy

Once I found a warning in the Zabbix panel:
Zabbix housekeeper processes more than 75% busy

Installing Jenkins on Ubuntu

For example, I will install Jenkins on Ubuntu 20.04

SNMP OID for Juniper

Once I made a template in Zabbix for Juniper MX204 and I will post some SNMP OIDs in this article.

Setting up SIP Trunk in Asterisk from Kyivstar

I will give an example of setting up a SIP Trunk in Asterisk from Kyivstar. Once it was necessary to increase the number of incoming lines, at first I used Goip4 gateways and 6 Kyivstar SIM cards, but when all the lines were busy, the clients could not get through, even hear the answering machine / voice menu, so I signed a contract for SIP Trunk with the Kyivstar manager.

How to change file date in linux

Once on one TFTP server, to which my scripts downloaded backups from network equipment, it was necessary to clean up files older than 200 days so that the disk system memory does not overflow, I used the command to clean up:

ABillS. Mass shaping of speed in case of accidents

In this article, I will give an example of how you can massively reduce the speed of users in the ABillS billing system.

Exellio DP-15 and MikroTik problem

Once one client used an Exellio DP-15 cash register with a TP-Link router, but when he replaced the router with MikroTik, the Exellio cash register stopped working.

Hikvision DS-2CD2032F-I firmware update

For example, I will update the firmware of the Hikvision DS-2CD2032F-I IP camera, in older firmware versions there is a vulnerability through which you can get the administrator password and access to the device, at the time of this writing, I discovered a vulnerability in version V5.4.0 build 160530, updating the firmware to 5.4.5 (170123) fixed this issue.

MicroTik. How to change LAN IP addresses

I will give an example of changing the range of IP addresses for the local network. The default is 192.168.88.0/24, but there are times when an organization uses a different subnet and needs to install a new MikroTik, or when multiple MikroTik devices are used on the same network, or users use multiple MikroTik routers connected in a chain.