Vyacheslav, Автор в IT Blog

Error due to missing PhysXLoader.dll

When launching some applications or games, I noticed a system error:

Physxloader.dll Not Found
This application failed to start because physxloader.dll was not found. …

PING does not work on Windows

Once I noticed that when I try to execute the ping command, a message appears on the Windows command line:

“ping” is not recognized as an internal or external command operable program or batch file

LACP. Configuring Link Aggregation on D-Link Switches

Link aggregation is a technology that allows you to combine several physical channels into one logical channel, which increases the bandwidth and reliability of the channel.

Configuring and tuning HPE ProLiant Servers for low-latency applications

Document Name: Configuring and tuning HPE ProLiant Servers for low-latency applications
Edition: 10 (October 2017)
File size: 0.5 MB
Language: English

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Installation on Ubuntu / Debian:

Installing Windows on a GPT Disk

To create a bootable flash drive, open the command line as administrator and enter the commands:

Configuring HP 5800

I will give an example of setting up the HP 5800 switch.

How to change join_buffer_size in MySQL

I will give an example of changing join_buffer_size in MySQL.
join_buffer_size determines the size of the buffer for index scanning and joins without indexes. I recommend adding indexes or slightly increasing join_buffer_size (but in this case a full table scan will be performed).

How to enable Slow Query Log in MySQL

Enabling slow_query_log and log_queries_not_using_indexes will help to identify slow queries and queries without indexes that affect the performance of the MySQL server.

File Integrity Check Script

Once on one server it was necessary to monitor the integrity of the file in which the changes were made, and if someone performed a system update, then this file could change and corrections had to be made again.
Usually I use a Zabbix agent and a Zabbix server for such purposes, but this server was single and it makes no sense to install a Zabbix server on it, so I wrote a simple script: