Articles

Manual/Interactive scanning Scan results questions Scheduled network audit scans Scheduled scan settings Console scanning failures and detection issues

• Verifying Required Network Connectivity and Security Permissions for GFI LanGuard Operations

  Overview LanGuard operations require certain network settings and security permissions to be configured.   Connectivity check failures can result in the following commonly reported scenarios: Access d...

• Stopping GFI LanGuard from Scanning a Specific Port

  Overview This article guides you on how to prevent GFI LanGuard from scanning a specific port.   Process Open GFI LanGuard console. Click Configuration. Expand Scanning Profiles and select the profile...

• Scanning for Vulnerabilities on Network Switches, Firewalls and Other Network Devices Using SNMP in GFI LanGuard

  Overview GFI LanGuard uses the SNMP (Simple Network Management Protocol) to query for vulnerabilities present in network switches, firewalls, and other network devices. This article details two method...

• Ignoring Windows Firewall in a GFI LanGuard Vulnerability Scan

  Overview This article outlines how to ignore Windows Firewall in a GFI LanGuard vulnerability scan.   Process Open the GFI LanGuard console. Click Configuration and select the scanning profile to edit...

• Changing the Number of Scanning Threads Used by LanGuard

  Overview This article guides you on how to adjust the number of threads for any Scanning Profile used by LanGuard. Solution Scans performed by the GFI LanGuard server are using the scanning threads. I...

• GFI LanGuard Determining the Operating System Running on a Device

  Overview This article guides you on how GFI LanGuard determines the operating system running on a device.   Information GFI LanGuard sends out three main types of packets/queries to help determine the...

• How can I scan multiple machines simultaneously using different credentials?

  Answer When scanning a network, you may need to specify different credentials depending on the computer being scanned. Using the computer profiles in the GFI LanGuard configuration, you can specify di...

• Resolving End Systems High CPU Utilization While Scanning

  Overview You see high CPU utilization on remote machines during GFI LanGuard scanning.   Solution The most common root cause for the high CPU utilization on target machines are missing antivirus excep...

• GFI LanGuard Supported Microsoft Patches and Service Packs

  Overview It is necessary to be familiar with your Microsoft Service Pack and the Supported Microsoft Patches compatible with GFI LanGuard. Knowing your Microsoft version and type of Service Pack insta...

• Scheduled Scans and Patch Deployments Not Running

  Overview You may notice that Scheduled Scans are not running or starting as required. This may include Scheduled Scans configured from the console or the agents, as well as patch deployments. This art...