457 results for «e-mail» (page 46 of 46)
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Switching the CDN off, and confirming it really is off
There are three ways to switch a CDN off, and they are very different from one another. Picking the wrong one gets you one of two results: either nothing is…
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Where are the logs on a Linux VPS: journalctl and /var/log
On a Linux VPS the logs live in two places: in the systemd journal, read with journalctl, and in files under /var/log. On Debian and Ubuntu nearly everything shows up…
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Testing IMAP, POP3 and SMTP by hand with openssl s_client: a guide for technical users
This article is for technical users with a command line (Linux, macOS, or Windows with OpenSSL). The short answer: openssl s_client opens an encrypted connection to the server and lets…
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Your first hour on a new Windows VPS: updates, users, firewall and backups
The short answer: a new Windows VPS is ready to use but not ready to expose. In the first hour there are six things to do, in this order: change…
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AutoSSL behind Cloudflare: why the free certificate leaves names out or fails to renew
The short answer: the server’s free certificate (cPanel’s AutoSSL) is still needed with Cloudflare in front: it protects the leg between Cloudflare and the server in Full (strict) mode, and…
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No space left on device: finding what fills your VPS disk
The error No space left on device means one of two things: the space has run out, or the inodes have (the number of files the disk will accept). Check…
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HestiaCP and VestaCP on a VPS: what the panel gives you and what stays your job
This article is for people with a VPS or a dedicated server with root access. On shared plans the panel is cPanel, and you neither choose nor install another one.…





