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🔍 Results for “sophos firewall whitelist domain”

How to Allow Specific Website (like http://xxx.xxxxxxxx.xxx ) in Sophos Firewall

Sophos Firewall provides powerful web filtering and security features, but sometimes it may block legitimate websites due to category filtering or SSL inspection. If you are unable…

How to Enable RDP Port (3389) Access in Sophos Firewall

RDP (Remote Desktop Protocol) allows remote access to Windows systems using port 3389. To enable secure RDP access through Sophos Firewall (SFOS), you must create a firewall rule a…

How to Permanently Disable Windows Firewall When It Re-Enables Automatically

In some environments, Windows Firewall turns itself back ON automatically even after being manually disabled. This behavior is intentional and driven by Windows security services, …

How to Check Domain Registration Details Online (WHOIS Lookup Guide)

Checking domain registration details is a fundamental task for IT administrators, system engineers, cybersecurity professionals, and business owners. Domain lookup helps verify own…

Antivirus Products in India: Types, Blacklist vs Whitelist (Allowlisting) Models, and Where CatchPulse Fits

Businesses in India commonly buy “antivirus,” but modern endpoint security is broader than classic virus scanning. Today’s products may include EPP (Endpoint Protection Platform), …

What is a Domain Name? History, Working, Types & Registrars – Complete Guide

? What is a Domain?A domain name is the human-readable address of a website on the internet. Example: google.com, amazon.in, bison.co.inInstead of typing numeric IP addresses lik…

Restricting Windows Server Access to India IP Addresses Only (Geo-IP Blocking)

Unauthorized access attempts on Windows Servers—especially via Remote Desktop Protocol (RDP)—are a common security risk. Servers exposed to the public internet are continuously sca…

How to Choose the Right Domain Name for Your Business: A Guide to Domain Extensions and Registration Duration

In today’s digital age, having a domain name for your company is crucial. It’s the first impression of your business online, and selecting the right domain can impact your brand’s …

Correct Domain Address Formats in Google Workspace Gmail Compliance & Email Restriction Policies

In Google Workspace (Gmail) Admin settings, address lists are commonly used to control allowlisting, blocklisting, and authentication requirements for inbound and outbound email.A …

How to Manually Connect a Third-Party Domain to Shopify

If you're looking to integrate your third-party domain with Shopify, you'll need to handle the process yourself since Shopify Support cannot access your domain provider's settings…

Understanding Name Servers and DNS Records: A Guide to Website Hosting and Domain Management

When setting up a website, understanding how name servers and DNS (Domain Name System) records work is essential for ensuring your site is accessible online. This article will expl…

Linux OS and Antivirus Software: Do You Really Need It? A Technical and Security Perspective

Linux is widely regarded as a secure and stable operating system, commonly used in servers, cloud platforms, embedded systems, and enterprise workloads. A frequent and important qu…

How to Redirect One Domain to Another in Hostinger: Complete 2025 Guide (With SEO-Safe Methods)

If you own two domains — say domain1.com and domain2.com — and want visitors from the second one to automatically redirect to the first, you’re in the right place! This is common w…

How to Restrict Email Communication to Approved Domains and Limit Attachment Size in Microsoft 365

Email remains one of the most common channels for data exchange—and also one of the most exploited attack vectors. Organizations handling financial, legal, or confidential informat…

What Is a DMARC Aggregate Report and Why You Receive Emails from noreply@dmarc.yahoo.com

If you manage a business domain or corporate email system, you may have received emails from addresses like noreply@dmarc.yahoo.com with attached files ending in .xml.gz. At first …

DMARC, DKIM, and SPF for Email Authentication

Introduction Email authentication is critical for protecting against spam, phishing, and other malicious activities. DMARC (Domain-based Message Authentication, Reporting, and Conf…

Web Hosting Explained: Types, Architecture, and Practical Examples

Web hosting is the service that allows individuals and organizations to publish websites or web applications on the internet. A web host provides the server infrastructure, storage…

Tally Not Opening / License Expired – Troubleshooting & Resolution Guide

Tally is a mission-critical accounting application widely used by businesses for compliance, bookkeeping, and reporting. A common operational disruption occurs when Tally does not …

Quick Heal Total Security Slowing Outlook Send/Receive Performance

If you're experiencing delays while sending or receiving emails in Microsoft Outlook, Quick Heal Total Security’s built-in Email Protection and Real-Time Scanning features might be…

How to Set Up MX Records for Google Workspace (2026)

Email delivery for any domain depends on Mail Exchange (MX) records, a critical DNS configuration that tells the global internet where to deliver incoming email. When you deploy Go…

Google Workspace SMTP Relay (IP-Based) — Architecture, Configuration, EHLO / Envelope-From Errors & Fixes

This Knowledge Base article provides a technical deep dive into Google Workspace Gmail SMTP Relay (IP-based), covering:SMTP Relay architecture and behaviorCorrect configuration for…

How to Set Up a Fully Branded SuperSite for Your Domain Reseller Business (OrderBox, ResellerClub, BigRock & GlobeHost)

Building a fully branded SuperSite for your domain reseller business gives your brand a professional edge. Whether you’re working with ResellerClub, BigRock, GlobeHost, or any othe…

How to Use Google Admin Toolbox Dig Tool to Verify MX Records and other Records like A Record, NS Record, TXT Record etc.

When configuring Google Workspace email or troubleshooting delivery issues, verifying that your MX records are correctly set up in DNS is essential. Google provides an official and…

MX Lookup

Introduction MX Lookup is a tool used to query and retrieve Mail Exchange (MX) records associated with a domain. MX records are DNS records that specify the mail servers responsibl…

Fix: “Tally is not running. Error no: 10061” While Exporting Data from TICK Production ERP to Tally Prime

When exporting accounting or inventory data from TICK Production ERP to Tally Prime, users may encounter the error: “Tally is not running. Error no: 10061” This error typically a…

Do Paid Domain-Based Email Services Require SPF, DKIM & DMARC? A Technical Knowledge Base Guide for Google Workspace, Microsoft 365, Yahoo Business Mail & Rediffmail Pro

Modern email delivery is governed by strict anti-spam and anti-phishing standards. Merely purchasing a paid, domain-based email service does not guarantee inbox delivery.Whether yo…

10 Tips to Improve and Ensure Your Internet Security – A Practical IT Security Guide

Internet security is no longer optional. With increasing use of cloud services, remote access, online banking, and digital communication, systems connected to the internet are cons…

Windows Cannot Find mstsc.exe – Remote Desktop Connection Missing or Not Working

This article provides a technical troubleshooting guide for resolving the error: Windows cannot find C:\Windows\System32\mstsc.exe This issue affects the Remote Desktop Connectio…

How to Configure Google Workspace MX Records for Email Delivery (Technical Guide)

This Knowledge Base article provides a technical, implementation-focused guide for configuring MX (Mail Exchange) records for Google Workspace.It is written for IT professionals, s…

How to Set Up MX Records in cPanel for Google Workspace Email

Setting up Google Workspace email requires configuring the Mail Exchange (MX) records in your hosting provider’s cPanel. This ensures that all email sent to your domain is routed t…

How to Block Google Workspace Browser Access and Allow Email Access Only via Microsoft Outlook

Organizations using Google Workspace Business Starter often want to restrict browser-based access to Gmail, Drive, Calendar, and other Workspace web applications, while allowing us…

Correct DNS Architecture When Using Cloudflare with Hostinger Hosting and Email Services (Hostinger / Google Workspace / Zoho / None)

This Knowledge Base article explains the correct DNS architecture, configuration, and operational best practices when: A domain is delegated to Cloudflare for DNS and security …

Gmail Free vs Google Workspace: What They Are, Key Benefits, Techniques & How to Choose

Gmail is the free email service provided by Google for individuals. Google Workspace (formerly G Suite) is a paid cloud-productivity and collaboration suite designed for businesses…

Complete Step-by-Step Guide to Restore an Old WordPress Website Backup on a New Hosting Server

Migrating your old WordPress website to a new hosting provider might seem challenging, but with the right steps, it’s easy and smooth. If you’ve already taken a full website backup…

CatchPulse Antivirus (formerly SecureAPlus): Whitelisting-Based Protection Redefined

CatchPulse, previously known as SecureAPlus, is a revolutionary antivirus and endpoint protection software that prioritizes application whitelisting over traditional blacklisting m…

TSplus Remote Support: Secure Browser-Based Remote Assistance for IT Support Teams

TSplus Remote Support is a lightweight, browser-based remote assistance solution designed for IT professionals, system administrators, MSPs, and support teams. It enables secure on…

Quick Heal Antivirus Products: Overview, Product Types, and Business Benefits

Quick Heal is one of India’s long-established cybersecurity vendors, widely used in home, SMB, enterprise, and government environments. Its product portfolio has evolved from tradi…

Bulletin Board System (BBS) Services in the 1990s: History, Benefits, and Whether They Still Exist

In the 1990s, BBS services (Bulletin Board Systems) were a major part of the IT and “online” ecosystem—especially before the public internet became cheap and common. Users connecte…

How to Secure Office Computers – A Practical IT Security Guide

Office computers store sensitive business data such as customer information, financial records, emails, credentials, and intellectual property. A single compromised system can lead…

Printer Not Printing or Showing Offline – Troubleshooting Guide for Windows

Printer issues such as “not printing”, “printer offline”, or jobs stuck in queue are among the most common IT support problems in Windows environments. These issues can occur on Wi…

Network Routers: Features, Technologies, Connector Types, Manufacturers, Performance Impact, and Practical Usage

Routers are core networking devices that direct data traffic between networks, most commonly between local networks (LAN) and the internet (WAN). From home broadband to enterprise …

Fixing SQL Server Express Remote Connection Issues for Tick ERP Using Static TCP Port Configuration

Tick ERP and many similar accounting or ERP applications rely on Microsoft SQL Server Express as their backend database. A common real-world issue faced in LAN environments is that…

Google Workspace vs Microsoft 365 vs Rediffmail Pro – Detailed Technical Comparison for Business Email & Productivity

Selecting the right business email and productivity platform is a strategic IT decision that affects communication reliability, data security, user productivity, and long-term scal…

Step-by-step: fix “email sent as another user” using Google Workspace SMTP Relay + PostMaster

A) Google Workspace (Admin Console) — set up SMTP Relay Open: Admin Console → Apps → Google Workspace → Gmail → Routing → SMTP relay service → Add Setting. Description: Pos…

Why Business Emails Go to Spam Even When SPF, DKIM, and DMARC Are Correct

Many organizations assume that once SPF, DKIM, and DMARC are configured correctly, all business emails will reliably reach the inbox. In reality, email authentication is only the f…

Quick Heal vs CatchPulse: Technical Comparison for Endpoint Protection

Selecting the right endpoint security solution is critical in today’s threat landscape. Quick Heal (a commonly deployed traditional antivirus/endpoint protection suite in India) an…

Comprehensive Guide: Antivirus Software Available in India & Their Core Values

With the rapid proliferation of malware, ransomware, phishing, and other cyber-threats, choosing the right antivirus software is essential for protecting personal and business endp…

How to Solve Common Internet Connection Problems – A Practical IT Troubleshooting Guide

Internet connectivity issues are among the most frequent problems faced by home users, small businesses, and enterprise IT teams. Symptoms such as slow speed, intermittent disconne…

How to Install and Configure TSPlus Remote Access

TSPlus Remote Access is a versatile and powerful solution for remote desktop access. It allows users to connect to their applications and desktops securely over the internet. This …

Google AdSense ads.txt Configuration for Subdomains on Same Hosting

This knowledge base article explains how ads.txt works with subdomains in Google AdSense, specifically when the subdomain is hosted on the same server and mapped to a folder (custo…