If you have a Gigabyte Z390 Designare motherboard, you might be wondering how to enable Secure Boot in order to meet the TPM2 Windows 11 requirement. Browsed every section of the BIOS and didn’t found it? Most likely you have “CSM Support” option enabled. (Compatibility Support Module (CSM) is a feature of the UEFI firmware… Read More »
If you have a HPE Comware switch stack, you may at some point need to access the CLI of a particular unit member in the stack for troubleshooting purpose. When running a switch stack, when accessing the CLI, the commands will always perform actions on the unit running as “master”, so this easy tutorial will… Read More »
In this article we will cover the procedure to reset a Cisco Catalyst to factory default settings. This will wipe out the current configuration written in flash and also the VLan database file as well. 1. Connect the switch serial console port to a computer and open up a terminal so you can see the… Read More »
You may have noticed that the OSSEC Web Interface stopped working (as of today on a new installation) or after updating PHP on your server. Looking at the logs, you most likely found a similar entry: PHP Fatal error: Uncaught Error: Call to undefined function split() in /var/www/html/ossec/lib/os_lib_agent.php:111\nStack trace:\n#0 /var/www/html/ossec/site/main.php(33): os_getagents(Array)\n#1 /var/www/html/ossec/index.php(126): include(‘/var/www/html/o…’)\n#2 {main}\n thrown… Read More »
Recently, without any change, I noticed that some cPanel servers stop sending email and return the following error: 550-Please turn on SMTP Authentication in your mail client. 550-hostname.domain.tld [0.0.0.0]:00000 is not permitted to relay 550 through this server without authentication. What is really puzzling in that case is that this message showed up even though… Read More »
I came across the following issue recently, where R1Soft backup server service was just restarted and showing the page that indicate that the service is currently in the starting process ; Idera Server Backup Manager This may take several minutes If you are the administrator, check the log files for details. Otherwise, please check back… Read More »
Red Hat introduced “Cockpit” starting with version 8 of their operating system. For that matter, they have added a banner at login that suggest how to enable it as followed: Activate the web console with: systemctl enable –now cockpit.socket If you have no business using it, you might want to get rid of that banner… Read More »
Getting the following notice from your ownCloud administrator account setting page? Transactional file locking should be configured ownCloud have the capability of managing file/folder locking on its own, on top of the filesystem. This is a must-have feature especially for large, busy, multi-users servers, and especially when users use their account on multiple devices. You… Read More »
This procedure will show you how to create Subject Alternate Name (SAN), or in other words, a certificate request with multiple Common Name (CN) DNS aliases. It order to do so, we need to create a CSR request template as shown below: 1. Create the certificate request template as followed:
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[req] distinguished_name = req_distinguished_name req_extensions = v3_req prompt = no [req_distinguished_name] C = Country Letter Code ST = State or Province L = City O = Company Name Inc. OU = Division Name Inc. CN = CommonName.Domain.TLD [v3_req] keyUsage = keyEncipherment, dataEncipherment extendedKeyUsage = serverAuth subjectAltName = @alt_names [alt_names] DNS.1 = AlternateHostName1.Domain.TLD DNS.2 = AlternateHostName2.Domain.TLD |
Note: Edit all fields… Read More »
Encountering the following issue with Dovecot/IMAP service on your cPanel server lately? The service “imap” appears to be down Reason TCP Transaction Log: << * OK [CAPABILITY IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE NAMESPACE LITERAL+ STARTTLS AUTH=PLAIN AUTH=LOGIN] Dovecot ready. >> A001 LOGIN __cpanel__service__auth__imap__nJl5Hcz7gc9iiv1r V0TeDQVaynp8zl9g << * BYE Internal error occurred. Refer to server log… Read More »