PHPMailer smtp error could not authenticate

This article will guide you on how to fix PHPMailer error "smtp error: could not authenticate" which generally occurs when the application can’t establish an SMTP connection to the mail server. This is experienced when users send emails via PHPMailer using SMTP authentication.

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Nginx 502 bad gateway

This article will help to fix Nginx 502 Bad Gateway which generally occurs when Nginx runs as a reverse proxy, and is unable to connect to backend services due to service crashes, network errors, and configuration issues.

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Telnet connection refused by remote host

This article will guide you on the processes to fix telnet: connection refused by remote host which generally occurs due to firewall restrictions, disabled telnet service, and so on.

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Process of forwarding Nagios Log Server to another Destination

This article will guide you on the steps to forward Nagios log to another server by creating a new output in NLS.

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