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GnuPG: Sharing a public key

Information security

Online videos

Collaboration and publication

Outlook: How to restart adding an e-mail account (Windows)

Majordomo: Approving e-mails to a moderated e-mail list

Changing of printing permissions

Microsoft Add-ins

Using the common computer facilities

GnuPG: Backing up the keys

Information security

Check e-mail redirecting rules

Information security

HY-VPN – Checking functionality and errors (Linux)

Logging and connections