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Detection. Captive portal detection URLs typically return a minimal, standardized response when not behind a captive portal. When the device receives the expected response, it concludes that it has direct internet access. If the response is different, the device assumes it is behind a captive portal and triggers the captive portal login process.
Network access control is a computer networking solution that uses a set of protocols to define and implement a policy that describes how to secure access to network nodes by devices when they initially attempt to access the network. [3] NAC might integrate the automatic remediation process (fixing non-compliant nodes before allowing access ...
Note that some OS's include automatica captive portal detection and bring a window with the captive portal page contents for you to login with. Once you've either logged in or agreed to a TOS agreement then your allowed o freely access the internet, either indefinitely or in some cases for a set period of time such as couple hours.
Free (PC) or hardware version. UTM distribution with routing, firewall, anti-spam and anti-virus for web, FTP and e-mail, OpenVPN, IPsec, captive portal functionality, and captive portal (missing in community version). Endian Firewall Community (EFW) is a complete version for x86. The anti-virus for EFW is Sophos or ClamAV.
PacketFence. PacketFence is an open-source network access control (NAC) system which provides the following features: registration, detection of abnormal network activities, proactive vulnerability scans, isolation of problematic devices, remediation through a captive portal, 802.1X, wireless integration and User-Agent / DHCP fingerprinting.
pfSense is a firewall / router computer software distribution based on FreeBSD. The open source pfSense Community Edition (CE) and pfSense Plus is installed on a physical computer or a virtual machine to make a dedicated firewall/router for a network. [3] It can be configured and upgraded through a web-based interface, and requires no knowledge ...
Radiation Portal Monitor. Truck driving through the Radiation Portal Monitor Test Area at the Nevada National Security Site. Radiation Portal Monitors ( RPM s) are passive radiation detection devices used for the screening of individuals, vehicles, cargo or other vectors for detection of illicit sources such as at borders or secure facilities.
Drives remain operable during self-test, unless a "captive" option (ATA only) is requested. The self-test logs for SCSI and ATA drives are slightly different. The ATA drive's self-test log can contain up to 21 read-only entries. When the log is filled, old entries are removed. See also. Comparison of S.M.A.R.T. tools; Data scrubbing