Port 31221 Details

known port assignments and vulnerabilities

threat/application/port search:

Port(s)	Protocol	Service	Details	Source
31221	tcp	trojan	Knark trojan	SG
31221	tcp	Knark	[trojan] Knark	SANS
31030-31399	tcp,udp		Unassigned	IANA

3 records found

News Glossary of Terms

Cool Links SpeedGuide Teams

SG Premium Services SG Gear Store

Registry Tweaks Broadband Tools

Downloads/Patches Broadband Hardware

SG Ports Database Security

Default Passwords User Stories

Broadband Routers Wireless

Firewalls / VPNs Software

Hardware User Reviews

Broadband Security

Editorials General

User Articles Quick Reference

Broadband Forums General Discussions

Advertising Awards

Link to us Server Statistics

Helping SG About

XML - RSS Feeds

General Links Broadband Links Networking Links

SG TCP/IP Analyzer SG TCP/IP Optimizer SG Security Scanner SG Speed Test IP Address Locator MAC Address OUI Search Network Tools Bits/Bytes Calculator RWIN/BDP Calculator DSL Speed Calculator WLAN Key Generator Hash Generator

TCP Optimizer Download TCP Optimizer Documentation

Scanned Ports Commonly Open Ports All Ports

Broadband Speed Test Test Stats Provider Stats Country Stats Mirror Stats

Cable Horror Story Cable-Modem Security Worries D-Link DFL-300 VPN Router DSL Hell Get a Cable Modem - Go to Jail ??!? (external) Intermittent Cable signal It Figures - The need for a firewall MediaOne RoadRunner - Kicking in Network adapter MAC/OUI/Brand affect latency Road Runner Security - File and Print Sharing Router speed drop solved RR Tech Support Incompetence ... Short Stories and Fixes Squirrels and rain can slow down an ADSL modem... Telefonica Incompetence, Xenophobia or Fraud? The IP That Just Wouldn\'t Stick. Wireless Networks and WEP

Belkin F5D5230 Compex NetPassage 15B D-Link DI-701 Linksys BEFSR41 Router SOHOWARE BroadGuard NBG800 WebRamp 700s ZyXEL Prestige 310 Nexland

ISB2LAN Router Review Nexland ISB-SOHO

Cayman 2E-H-W Compex NetPassage 26G Wireless Gateway Diamond HomeFree SMC Barricade 7004AWBR

ZyXEL ZyWALL 10

Tiny Software Personal Firewall v1.0 WinGate 4.1.1

Linksys Instant GigaDrive

Acer TravelMate 292 XC Laptop D-Link DI-524 Wireless Router First look at Nexland Pro 400 ADSL with Wireless Netgear RP614 Review

Bits, Bytes and Bandwidth Reference Guide Ethernet auto-sensing and auto-negotiation How to Make Network Cables How to repair TCP/IP and Winsock How to set a Wireless Router as an Access Point Internet connection Sharing Internet Data Caps compared Network Adapter Optimization Router Configuration Guide TCP Congestion Control Algorithms Comparison The TCP Window, Latency, and the Bandwidth Delay product Windows 10 Anniversary updates to TCP Wireless Antenna Guide Wireless Network Speed Tweaks WLAN Primer

General Security Guide How To Crack WEP and WPA Wireless Networks How to Secure your Wireless Network How to Stop Denial of Service (DoS) Attacks IRDP Security Vulnerability in Windows 9x Which VPN Protocol to use? Why encrypt your online traffic with VPN ?

Cable Modems Technology Overview CISCO/VALVE PowerPlay MTU, what difference does it make ? Satellite Internet - What is it ? Server Based Network Guide Tom\'s Easy Home Networking Uncapping, The makings of a Semi-Myth

How to Backup using Batch Files How to Backup using Batch Files under Windows 10 Ramdisk Guide SSD Linux Tweaks SSD Speed Tweaks Windows 2k/XP Tweaks Windows 9x Tweaks

5 Ways to Improve your Wireless Network Cable modem signal levels Cable Troubleshooting Guide Crimson Editor Difference between Routers, Switches and Hubs How DSL Internet Access Works ISPs hijack failed searches The History of DSL Internet Access Tips to improve your SNR Wi-Fi Standards Glossary Wireless Broadband service and LONG Range

ADSL VPI, VCI and Encapsulation settings BIOS Error Codes Choosing RAM Type How to turn Wireless on/off in various Laptop models Linux TCP/IP parameters reference Subnetting and IPv4 Address Classes TCP Structure - Transmission Control Protocol The TCP/IP and OSI Network Models TLD Country Code Reference UDP - User Datagram Protocol Wireless LAN Standards