IT Blog - Page 6 of 153 - Vyacheslav Gapon - personal blog, manuals, articles, notes, development

Monitoring Linux directory size in Zabbix

One day I needed to monitor the size of a directory in Zabbix and create a trigger so that Zabbix would notify when the directory size increases.

How to add a blackhole route in Netplan

I will give an example of setting up blackhole routes in Netplan.

How to disable a port on Juniper

I will give an example of disabling/enabling a port on Juniper devices.

Setting up Firewall in Proxmox

I will give an example of enabling and configuring the Firewall in Proxmox. By default, the Firewall is disabled and there are open ports, for example: SSH, 111, 3128, 8006.

How I moved the Windows bootloader to another drive

I once noticed on one computer that if you disconnect drive D, Windows 10 does not start; as it turned out, during the installation of Windows, the bootloader was not installed on drive C. Therefore, I connected drive D back to the computer, started Windows and wrote the bootloader to the disk C.

Setting up ETP48100-B1 with Huawei MA5800

For example, I will connect the ETP48100-B1 power supply to the Huawei MA5800.
The kit included a regular ethernet patch cord with a standard pinout. I connected one side to the ESC port on the Huawei MA5800, and the other to the COM_OUT port on the ETP48100-B1.