Email:

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Freelancehunt — простой и честный фриланс

© 2025 //.nkotov

10

+

Years of Experience

20

k

Hours of Working

50

+

Projects Done

About

Hey 👋

My name is Nikolay, i live in Ukraine. I develop websites, administer servers on Linux and many other interesting things! This site serves as my calling card to get acquainted with my works.


For more than 10 years I have been setting up Unix servers and developing websites of varying complexity. Also, I am fond of hacking and system security. I will be glad to become a part of your team or perform a number of interesting tasks for you. If you need to write a website, a script, optimize the server, automate a task, write an application for your website or remove viruses on the server, I am always at your service.


I also play music and drink coffee. I write code and improve my brain and skills every day. Books make me relax.


Being able to both design and develop is a lot of fun. When you have an idea, there’s nothing holding you back from building it.


SKILLS

🖥 System administration

DebianUbuntuAlmaLinuxCentosFedoraPHPPythonBashAnsibleMySQLNGINXAPACHEGITVPNNETDATAZabbixPerconaGrafanaPrometheusSentryOpenVPNPROXMOXcPanelVestaCPaaPanelHestiaCPDirectAdminFastPanelPhpMyAdminNextcloudJenkinsProxySQLBorgEXIMDovecotPureftpIptablesapf\csfSSLRedisRemoving viruses on the server\VDS

💻 Web develop


🕹 And other

Portfolio

Latest Projects

I've been publishing premium web templates on Envato's ThemeForest Marketplace for 8 years now. Envato is the world's leading marketplace for digital products.

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What People Say

I can't thank this server admin more! He did the impossible for our company by ensuring the stability of our website. His knowledge of servers and scripting is truly impressive. The response to problems was quick and effective. I recommend to all!

Sergiy
Client

We worked with the server administrator for several months, and he completed most of the tasks successfully. However, some problems required additional effort and time to resolve. Overall, the service was satisfactory and I would consider re-engaging with you again.

Feqan
Client

Nikolay швидко відповів на приватне повідомлення і озвучив вартість роботи. Мене все влаштувало, оформили персональний проект і в короткий термін налаштували сервер під Cloudflare і захист від парсингу (або ddos) магазину. В кінці отримав бонусом оптимізацію бази. Дякую за співпрацю!

Андрей Колендзян
AntiDdos і налаштування Cloudflare

Спасибо за сотрудничество. Очень быстро и профессионально решен вопрос!

Vasiliy Kovalchuk
Настройка сервисов по защите от ddos атак

This server administrator is a true professional! He helped us with the migration to the new server and it went smoothly without any interruptions. In addition, he provided us with several useful scripts that improved the performance of our site. I recommend to all!

Eduard
Client

Быстро решил наш вопрос. Спасибо!

Катерина Гайдаенко
Настроить главную страницу на Ворд пресс

Очень рекомендую! Сделано быстро и качественно

Роман Сован
Настроить главную страницу на Ворд пресс

Як завжди швидко та якісно. РЕКОМЕНДУЮ

Станислав Пасевич
Налаштувати відправку форми на сайті Wordpress
Blog [last posts]

Install 3-XU Xray (Vmess, Vless, Trojan, ShadowSocks и Wireguard)

3-XU - Xray panel with support for multi-protocol multi-user expiration, traffic limitation and IP addresses (Vmess, Vless, Trojan, ShadowSocks and Wireguard) GitHub - MHSanaei/3x-ui: Xray panel supporting multi-protocol multi-user expire day & traffic & ip limit (Vmess & Vless & Trojan & ShadowSocks & Wireguard)Xray panel supporting multi-protocol multi-user expire day & traffic & ip limit (Vmess & Vless & Trojan & ShadowSocks & Wireguard) - GitHub - MHSanaei/3x-ui: Xra


We raise VPN Outline and forward traffic through the TOR network

Everything will be running on Debian 12. 1. Install the components: apt install docker docker.io docker-compose 2. Run the script: bash -c "$(wget -qO- https://raw.githubusercontent.com/Jigsaw-Code/outline-server/master/src/server_manager/install_scripts/install_server.sh)" 3. After launching, the script will configure everything itself and give you an admin key. With its help, you connect through the client manager and generate connection keys. The client and manager are here: https:/


Nextcloud on Raspberry Pi with disk encryption.

Package contents: * Raspberry Pi 4 B 🖥 * USB Flash Kingstom 256G USB3.0 We install the minimum 🖥 debian 12 on the raspberry. Next, we install 🖥 docker: apt install docker docker.io docker-compose We install cryptsetup: apt install cryptsetup By default, our entire disk will be marked as the root, but this is not a problem. We create space for the file: fallocate -l 200G /var/nextcloud 200 GB is enough for me, I don't have that much porn 🤭 Next we encrypt: cryptsetup luksFormat /v


Examples of commands for working with the exim mail server

With Exim installed, you can work with messages via the command line. Let's look at several commands that you'll need when working: Display messages in the queue: exim -bpr Similar command: mailq View the number of messages that are in the queue: exim -bpc Force start sending messages from the queue: exim -q -v If you need to clear the queue, run the command: exipick -i | xargs exim -Mrm If you need to delete messages that are marked as "frozen", run the following command: exipick


MySQL Optimization

Often on virtual servers there is a problem with the database load or the slow operation of the database, so we will give an example of optimizing the MySQL settings. The database configuration file is located at: /etc/my.cnf /etc/mysql/my.cnf Remember that the parameters are configured for both MyISAM tables and InnoDB. The main parameters that the config uses to configure for the server: max_allowed_packet — since data between the server and the client is transferred in packets, this paramet


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