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: [req] distinguished_name = req_distinguished_name req_extensions… 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 »
The following error message may happen from time to time when attempting to load new software version in Palo Alto Firewall or Panorama : Successfully downloaded Preloading into software manager Error: Image File Authentication Error Failed to load into software manager. Please retry. Post processing failed. Please retry PanOS always do software image integrity check… Read More »
If you encounter error 0x80092004 while installing updates on Windows 7 or Server 2008 R2, it is most likely due to some cryptography issues (CRYPT_E_NOT_FOUND). To workaround this problem, you need to manually install the following update(s) : SHA-2 code signing support update for Windows Server 2008 R2, Windows 7, and Windows Server 2008: September… Read More »