• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
OpenTechTips

OpenTechTips

Practical IT Guides, Expert Tips, and Real-World Solutions

MENUMENU
  • HOME
  • ALL TOPICS
    • Exchange
    • InfoSec
    • Linux
    • Networking
    • Scripting
      • PowerShell
    • SSL
    • Tools
    • Virtualization
    • Web
    • Windows
  • ABOUT
  • SUBSCRIBE

Home

Home

EU AI Act Explained for Website Owners and Small Businesses

August 5, 2026 Zsolt Agoston
A practical guide to EU AI Act dates, chatbot disclosure, synthetic-content transparency, AI literacy, and compliance steps for small organizations ... Read More

Home

Following the SSL Key Exchange with WireShark

April 14, 2020
Home
We established in part1 why the key exchange takes place, if you missed that part click HERE to check it out. Basically the client and the server agree on a key that they can use to encrypt the rest of ... Read More
Home

Math: X To The Power of Y in PowerShell

April 13, 2020
Home
Math in PowerShell is very simple and straightforward, the basic operators work as they usually do in any programming or scripting language: 1 + 1, 64 - 16, 4 * 32, 1024 / 128, etc. However, many times I faced ... Read More
Home

Join RHEL or CentOS 8 to an Active Directory Domain using SSSD

April 12, 2020
Home
The task for today is to join a Microsoft Active Directory domain with our CentOS box. We use the sssd package to accomplish this, first we start with a basic CentOS installation, we go through the initial setup, then the ... Read More
Home

How to Setup HTTPS on a CentOS 8 Server

April 11, 2020
Home
Our goal is to make our website protected, configuring the HTTPS service on it to ensure encrypted traffic between the client and our server. We utilize Let’s Encrypt’s certbot, that will create and automatically renew the publicly signed SSL certificates ... Read More
Home

How to Set Up Multiple Apache Virtual Hosts on CentOS 8

April 10, 2020
Home
    So what are Virtual Hosts and what are they for? John has a web server, connected to the internet with a single IP address. He has a website, called JohnBlog.com which is pointing to this web server. He ... Read More
Home

How to build a basic webserver on CentOS with Apache, MySQL and PHP

April 9, 2020
Home
Before You Begin Our job is really easy this time as we already have the process of installing Apache, MySQL and PHP on Debian based machines, as it is really similar to the process on RHEL based boxes. For the ... Read More
Home

TLS/SSL – Does my public CA have my private key??? – part2

April 8, 2020
Home
I’ve recently encountered a situation where a smaller company needed a VPN server, using SSTP, so they tried to set up an SSL certificate for their service to encrypt their client VPN tunnels with. It was a Windows server, and ... Read More
Home

TLS/SSL – Basics: How public-private Keys Work – part1

April 7, 2020
Home
What is PKI and why do we need it? PKI stands for Public Key Infrastructure, that utilizes public and private key asymmetric encryption to create an encrypted channel between two parties through a public medium. Let’s see what we mean ... Read More
Home

Upload Max Filesize in php.ini

April 6, 2020
Home
Modify the Limits If you get the following error message, saying the max upload filesize in php.ini is too small, you simply need to edit the php.ini file, increasing the required values as seen below. Note that both 1 ... Read More
Home

SSH login with certificates – NO password needed !!!

April 5, 2020
Home
You might have been wondering: do I really need to type in my long password every time I SSH into a remote server, possibly making a typo and starting the password all over again without seeing any feedback on the ... Read More
  • ‹
  • 1
  • …
  • 18
  • 19
  • 20
  • 21
  • 22
  • ›
Home

Primary Sidebar

Tools

  • Terms of Use
  • Disclaimer
  • Privacy Policy
Manage your privacy
We use technologies like cookies to store and/or access device information. We do this to improve browsing experience and to show (non-) personalized ads. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Functional Always active
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
Preferences
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
Statistics
The technical storage or access that is used exclusively for statistical purposes. The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
Marketing
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
  • Manage options
  • Manage services
  • Manage {vendor_count} vendors
  • Read more about these purposes
Manage options
  • {title}
  • {title}
  • {title}
Manage your privacy
To provide the best experiences, we use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Functional Always active
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
Preferences
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
Statistics
The technical storage or access that is used exclusively for statistical purposes. The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
Marketing
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
  • Manage options
  • Manage services
  • Manage {vendor_count} vendors
  • Read more about these purposes
Manage options
  • {title}
  • {title}
  • {title}