SysAdminsHowto – Page 2 – Practical Guides for Modern Systems & Cloud Infrastructure

14Aug 2015 by Ceyhun Kirmizitas

SSTP VPN Error 0x80092013: Revocation Server Was Offline

Windows

Applies to: Windows SSTP VPN clients, Windows Server RRAS Legacy note: This article was originally written for Windows 8.1 and Windows 7 clients. The troubleshooting principle is still relevant to SSTP: the VPN client must be able to validate the server certificate, including certificate revocation information. An SSTP VPN connection can fail with the following error: Error 0x80092013: The revocation function was unable to check revocation because the revocation server was offline. Why SSTP Error 0x80092013 Occurs SSTP uses TLS to establish the VPN tunnel. The Windows client validates the certificate presented by the VPN server. If the certificate chain contains a CRL Distribution Point (CDP), the client must be able to retrieve the required Certificate Revocation List (CRL). This commonly fails when the certificate contains a CRL URL that…

Wake on Lan (WOL) does NOT Work in Windows 10 After Upgrade from Windows 8.1 or Windows 7

Windows

Legacy field case: This article documents a Wake-on-LAN issue I encountered after upgrading a system from Windows 8.1 to Windows 10 with a Realtek PCIe GBE Family Controller. The exact driver versions are old, but the troubleshooting pattern is still useful when WOL stops working immediately after an operating system or NIC driver change. Problem Wake-on-LAN (WOL) stopped working after the upgrade to Windows 10 even though the BIOS and network adapter WOL settings were configured correctly. Environment Previous OS: Windows 8.1 Pro x64 Current OS: Windows 10 Pro x64 Mainboard: ASUS H87-Plus NIC: Onboard Realtek PCIe GBE Family Controller Driver used during the issue: 9.1.401.2015, dated April 1, 2015 Cause in This Case On this system, the Realtek driver installed through Windows Update did not provide the same Wake-on-LAN…

Configure IP based Apache Virtual Host on RHEL 6.x or CentOS 6.x

Red Hat and CentOS, Video Tutorials

Applies to: RHEL 6.x, CentOS 6.x, Apache HTTP Server 2.2 Legacy guide: This article was originally written for RHEL 6 and CentOS 6. CentOS Linux 6 reached end of life on November 30, 2020 and no longer receives security updates. Use a currently supported Linux distribution for new deployments. IP-based virtual hosting allows Apache HTTP Server to select a virtual host according to the IP address and port on which a request is received. Each virtual host therefore uses a different IP address, port, or IP/port combination. For most modern websites, name-based virtual hosting is more convenient because multiple sites can share the same IP address. IP-based virtual hosting is still useful when separate addresses or interfaces are specifically required. Example Environment Server: RHEL 6.x or CentOS 6.x Apache service:…