Introduction Email delivery configuration is a critical component of server administration in environments that host multiple domains or services. In cPanel & WHM servers, the Mail Transfer Agent (MTA) responsible for handling outgoing email is Exim. By default, Exim sends outgoing email from the server’s main shared IP address. However, there are situations where administrators
Introduction As CentOS 7 reached its End of Life (EOL) on June 30, 2024, many system administrators and hosting providers have migrated to its downstream alternatives, such as AlmaLinux and Rocky Linux. These Enterprise Linux (EL) clones are binary-compatible with Red Hat Enterprise Linux (RHEL), making them ideal drop-in replacements for CentOS in server environments.
Overview Caching SHA password refers to a secure authentication mechanism that combines SHA-based password hashing with temporary credential caching to optimize performance. This is most commonly implemented in MySQL 8.0+ through the caching_sha2_password plugin. By hashing passwords with SHA-256 and caching the result in memory for the duration of a session, this method reduces the
Introduction Email delivery issues are a common concern in hosting environments, especially when managing accounts via Web Host Manager (WHM). When an email fails to deliver, it is typically queued for retry or stored in the Mail Queue Manager, which is part of Exim, the mail transfer agent used by cPanel/WHM servers. These failures can
🔍 IP Reputation & Blacklist Lookup Tools How can I check the details or reputation for an IP address? To check if an IP address is blacklisted or flagged for poor reputation, you can use trusted third-party tools like: ✅ 1. MXToolbox Blacklist Check MXToolbox is a highly trusted tool for checking if an IP
📩 How to Display Send/Receive Details in Outlook Classic How can I view Send/Receive details in Outlook Classic? To display Send/Receive details in Microsoft Outlook Classic (commonly referring to versions like Outlook 2016, 2019, or Office 365 desktop version), follow the steps below: Open Outlook. Go to the Send/Receive tab on the top menu. Click
Introduction When managing Apache HTTP Server (httpd) on a Linux-based system, encountering startup failures accompanied by errors such as Couldn’t create the authdigest-opaque mutex or No space left on device can indicate underlying issues with system-level semaphore limits. Apache may fail to start and log errors like the following: AH00023: Couldn’t create the authdigest-opaque mutex AH01760: failed
Instance Console Access Credentials What is the username and password for the instance console? When accessing the Instance Console through the IPServerOne Customer Portal, the required credentials depend on your VPS operating system. Linux VPS Username: Based on the OS image used during deployment: ubuntu – Ubuntu centos – CentOS debian – Debian rocky – Rocky Linux almalinux –
Introduction Managing disk space effectively is crucial for maintaining system performance and optimizing storage usage in Windows Server environments. While extending partitions is a common task when additional space is required, there are scenarios where shrinking a partition becomes necessary. Shrinking allows administrators to reduce the size of an existing volume, thereby creating unallocated space
Introduction In Linux server environments, long-running processes such as system updates, file transfers, or script executions are common. Managing these tasks over SSH can become problematic if the session is interrupted or disconnected, leading to task termination. The screen utility is a terminal multiplexer designed to address this issue, allowing users to start a session,