Articles about security | UserComp.com

How to Close SSH Connection after Idle Time with no Key Pressed

Learn how to automatically close SSH sessions after a certain period of inactivity, even if no key has been pressed. This can help improve security and prevent unauthorized access. Read more to find out how to implement this on your system.

Fixing SSL Handshake Error: Not Connecting to Server Providing Certificates Signed Using SHA1RSA (Linux, OpenSSL 3)

Having trouble connecting to a server due to a certificate signed using SHA1RSA? Learn how to resolve the SSL handshake error on Linux using OpenSSL 3. Follow our step-by-step guide to ensure a secure connection.

Secure Your Network with Proxmox Firewall: How to Block Traffic and Allow Specific IP Ranges

Learn how to set up and configure the Proxmox firewall to secure your network using Netbird (a Wireguard-based VPN) on a Proxmox PVE 8/Debian 12 server with various containers. This tutorial covers Proxmox firewall basics, such as blocking traffic and allowing specific IP ranges through SSH.

Troubleshooting HACS Installation for Eufy Security Cameras on Synology NAS

Having trouble integrating Eufy Security cameras with Home Assistant on Synology NAS? Follow this troubleshooting guide to resolve the installation issue with the Home Assistant Community Store (HACS).

Enabling GPG Keyring for External GPG Key IDs in Tech Support

This article discusses the importance of enabling the GPG keyring to use external GPG key IDs for email accounts in tech support. Despite the ability to decrypt and sign without issues, many users have not yet enabled the public key system keyring. Discover how to enable it today.

NMAP Says Host is Blocking Ping Probes: Here's How to Fix It

If you're running NMAP with the -A and -vvv flags and getting a message that says 'Host seems to be really blocking ICMP echo probes, try -Pn', it means the host you're scanning is blocking ping probes. Here's how to resolve the issue and get the information you need using NMAP.

Confusing Info on Google Security: Find Device and Remotely Wipe Samsung Phone

Learn how to find your stolen Samsung Android phone and remotely wipe it using Google Security's Find Device feature. This article provides SEO-optimized information to help you use the keywords and navigate the confusing information.

Updates: New Ways to Block Wildcard Outgoing Traffic by Domain

Learn new methods to block wildcard outgoing traffic by domain, an alternative to /etc/hosts.deny. Improve network security and resolve issues with unwanted domain connections.

Securely Wipe MicroSD Cards with Rocketek USB Reader and Paragon Software

Learn how to use the Rocketek USB microSD card reader and Paragon Hard Disk Manager Pro 15 Recovery CD Disc to securely wipe microSD cards using the US DoD 5220.22-M standard. This tech support guide provides step-by-step instructions for safely erasing data from microSD cards on Linux, Windows, and MacOS systems.

Blocking Spam Imposters: Protecting Charities from Email Scams

A charity organization, run by Jane Doe, is receiving spam emails from imposters trying to scam money. Learn how to block these emails and protect your organization.

Decrypting S/MIME Email Messages: Keeping Headers Intact

Learn how to decrypt S/MIME email messages while keeping headers intact. This article provides steps for various platforms including Linux, Windows, and MacOS.

Unable to Enable TPM 2.0 on ASUS Laptop for Valorant

Learn how to enable TPM 2.0 on your ASUS laptop to play Valorant without encountering the 'account not meeting the requirements' error.

SSH: Understanding Key File Options and Authentication with GitHub

This article explains the concept of SSH key files and how they are used for authentication with GitHub. It covers the options for designating a key file and the successful authentication process.

Windows: Quarantined Files Not Deleting? Enforce Group Policies to Allow Quarantine Settings

Learn how to delete quarantined files in Windows by enforcing group policies to allow quarantine-related settings.

Accessing USB HSM Token on Ubuntu 24.04 using p11-tool

Learn how to list token URLs and access USB HSM Tokens on Ubuntu 24.04 using p11-tool.

Using Wireshark to Catch Students Cheating: A Network Admin's Perspective

In this article, we'll explore how Wireshark, a popular network protocol analyzer, can be used by network administrators to detect students cheating during online exams. We'll discuss the setup and configuration required to monitor network traffic, identify suspicious patterns, and provide actionable insights.

Windows Security Auditing: Scheduled Task Run Program Ended (Event ID 4689)

This article explains the significance of Event ID 4689 in the Windows Security event log, which is generated when a scheduled task completes its run. Understanding the implications of this event can help you identify potential issues with your system.

Getting Started with Azure CloudKnox: A Beginner's Guide

Discover the basics of Azure CloudKnox and how it simplifies cybersecurity management for beginners in the field. Learn about its features and benefits.

Testing File Encryption/Decryption with PGP Keys: Client Side

This article explains how to test file encryption and decryption using PGP keys on the client side. It covers creating and sending public keys, using encryption, and answers related questions.

Securing Your Laptop: Using Linux USB to Hack-Proof Your Device

Learn about the top percentages of hacks that keep returning and the possible entry points. Discover how using a Linux USB can help secure your laptop.

Is the TCPWrapper hosts deny file option correctly configured?

Users have reported issues with the TCPWrapper hosts deny file not functioning as expected. In this article, we will discuss how to check and correct the configuration of the hosts deny file to improve network security.

Mysterious User Accounts: Properly Deleting and Propagating Permissions

Learn how to properly delete user accounts and propagate permissions to avoid encountering issues when trying to enumerate something. Prevent the creation of new accounts with improper permissions.

Understanding Receiver Responses and Broadcast Requests in SPF Config Files

In this tech support article, we will explain the role of receiver responses and broadcast requests in SPF (Sender Policy Framework) config files. We will discuss the importance of checking the state of neighboring machines and provide examples of UDP pass and UDP server lines in SPF files.

Bought Cheap Office365 License, Got Weird Notification: Organization Installed Apps on Device

A user received an unexpected notification from their Office365 account stating that an organization had installed apps on their device. This article discusses possible causes and solutions.

Restricting Programs to Always Require UAC on Tech Support Sites

Learn how to restrict certain programs to always require User Account Control (UAC) prompts when running on tech support sites to enhance security.

Encrypt Local Traffic: Setting Up WireGuard for Gateway Services

Learn how to set up WireGuard for secure gateway services, allowing remote access to hosted services on a physical server without exposing them.

Encrypting Local Traffic with WireGuard: Securely Access Hosts on Physical Servers

Learn how to encrypt local traffic when accessing hosts on physical servers using WireGuard as a secure gateway.

Unable to Connect to Norton's Mobile Security: Troubleshooting Java Unknown Host Exceptions

This article provides solutions for Java Unknown Host Exceptions when trying to connect to Norton's Mobile Security service.

Configuring FQDN Filtering on Zyxel ATP700 for Static External IP Subdomains

Learn how to configure FQDN filtering on Zyxel ATP700 for static external IP subdomains. This article provides a step-by-step guide to help you secure your network.

Block Access to Files Without Login in CodeIgniter 3 with Nginx

Learn how to restrict access to files in a CodeIgniter 3 application when using Nginx as a web server.

SSH User chroot Jail: Restricting SFTP Access to Specific Directory

In this article, we'll discuss how to restrict SFTP access for a specific user to a mounted volume within a chroot jail using SSH configuration. This setup is particularly useful for enhancing system security.

Understanding VBS Device Guard Status: Security Services Running in Windows

Learn about the VBS Device Guard status feature in Windows and its Security Services Running component. This article provides instructions on checking its status and troubleshooting any issues.

Configure VPN to Allow Select Number of Domains, Block Traffic to Everything Else: A Tech Support Guide

In this tech support article, we'll guide you through the process of configuring your VPN to allow access to a select number of domains while blocking all other traffic. This can be particularly useful for enhancing network security and improving overall internet performance.

Searching Phrases within Files: A Potential Security Concern

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