In this article I will give an example of changing gc_thresh on Linux, this parameter usually needs to be increased on highly loaded access servers.
Continue reading “Changing gc_thresh on Linux”Author Archives: Vyacheslav
Nginx. Directory Access Restriction
In this article I will give examples of restricting access to files or directories by IP address or username and password.
Continue reading “Nginx. Directory Access Restriction”Solution “InnoDB Error ib_logfile0 is of different size”
Once increasing the size of “innodb_log_file_size”, I noticed an error in the /var/log/mysql/error.log file:
Continue reading “Solution “InnoDB Error ib_logfile0 is of different size””How to convert MySQL tables from MyISAM to InnoDB
Since InnoDB is more reliable for storing important data and is more efficient with frequent write requests, I will convert MyISAM tables to InnoDB, in old databases, in one of the companies.
Continue reading “How to convert MySQL tables from MyISAM to InnoDB”How to configure networking with Netplan
In this article I will give examples of network configuration using Netplan.
I also note that for example, starting with Ubuntu version 18.04, Netplan is used by default.
Boost UDP Transaction Performance
File Format: PDF
File size: 3 Mb
Author: Toshiaki Makita
NTT Open Source Software Center
How to clear DNS cache on MacOS
If the DNS settings of any site have been changed and in order not to wait for the time to cache DNS records, you can manually clear them, after which the DNS client on MacOS will request new data from the DNS servers.
Continue reading “How to clear DNS cache on MacOS”IPTables Rules for BGP
I will give an example of IPTables rules for BGP.
Continue reading “IPTables Rules for BGP”How to enable port 587 in Postfix
By default, Postfix listens for connections on port 25/tcp and in this article I will show what needs to be done so that it starts to happen port 587 (submission), since for example in many mail clients when setting up mail, port 587 is offered by default.
Continue reading “How to enable port 587 in Postfix”How to enable TRIM for third-party SSDs on MacOS
The trimforce utility allows you to activate TRIM on third-party devices connected to the AHCI controller; by default, TRIM commands are not sent to third-party storage devices. The trimforce utility has appeared since OS X 10.10.4.
On original devices, TRIM is used by default and no commands need to be entered.