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PHP PEAR Mail scripts to test SMTP email delivery with SSL port 465, STARTTLS port 587, and plain port 25 authentication
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PHP Scripts to Test SMTP Email Delivery with Authentication

When diagnosing email delivery problems on a Linux server, you need a reliable way to test SMTP authentication and ...

Iamem Hosting
 March 1, 2016 No Comments
How to change SSH port on CentOS 7 — sshd_config, SELinux semanage, and firewalld configuration steps
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How to Change SSH Port on CentOS 7 (Without Locking Yourself Out)

SSH port 22 is the most aggressively scanned port on the internet — automated bots attempt brute-force logins around ...

Iamem Hosting
 February 28, 2016 No Comments
Best free online tools for system and network administrators — DNS, email, uptime, performance, and network diagnostics
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Best Free Online Tools for System and Network Administrators

Every server administrator and hosting engineer has a go-to collection of online tools for diagnosing DNS issues, checking email ...

Iamem Hosting
 February 25, 2016 No Comments
WordPress not using PHP.ini memory limit — fix with WP_MEMORY_LIMIT and WP_MAX_MEMORY_LIMIT in wp-config.php
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WordPress Not Using PHP.ini Memory Limit: How to Fix It

A common frustration on WordPress hosting setups is increasing memory_limit in php.ini only to find WordPress still reports the ...

Iamem Hosting
 February 24, 2016 No Comments
How to install CSF ConfigServer Security Firewall on Linux and cPanel servers step by step
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How to Install CSF Firewall on Linux and cPanel Servers

ConfigServer Security & Firewall (CSF) is one of the most widely used stateful packet inspection firewalls for Linux servers. ...

Iamem Hosting
 February 3, 2016 No Comments
How to disable IPv6 on CentOS 6.x servers using sysctl.conf and ip6tables configuration
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How to Disable IPv6 on CentOS 6.x Servers

Not every server is assigned a public IPv6 address, and on many Linux hosting environments IPv6 can cause unexpected ...

Iamem Hosting
 February 3, 2016 No Comments