support.simpledns.com/. /how-do-i-configure-my-firewall-for-dns.aspx‎CachedSimilarFeb 14, 2013 . This type of firewall is often built into routers, and filters TCP/IP traffic by protocol (

www.gossamer-threads.com/lists/nanog/users/155141‎CachedSimilarfrom today had about 89% port 0 and 11% port 53 (DNS). If it happens . that's

www.cyberciti.biz/. /linux-iptables-12-how-to-block-or-open-dnsbind- service-port-53.html‎SimilarJul 13, 2005 . The domain name service provided by BIND (named) software. It uses both UDP

www.dslreports.com/. /r2953298-UDP-vs-TCP-rule-for-DNS-port-53-‎CachedSimilarI have a question regarding a rule for my DNS addresses, port 53. I am under the

linux.ittoolbox.com/. /block-all-udp-ports-through-iptable-accept-dns- 5241336‎CachedSimilarJun 28, 2013 . Just accept port 53 at proto UDP towards destination 0.0.0.0 and deny all the rest.

www.ohmancorp.com/RefNet-IPPorts_Notes.txt‎CachedSimilarWindows 2000 server, TCP/IP filtering Permit Only - TCP Ports 20 - FTP 21 - FTP

en.wikibooks.org/wiki/Tomato_Firmware/Menu_Reference‎CachedSimilarStatus; Bandwidth; Tools; Basic; Advanced; Port Forwarding; QoS — Quality of

www.ingate.com/files/422/fwmanual-en/xx8738.html‎CachedSimilarIt usually uses a high port on the client and port 53 on the server. When two DNS

serverfault.com/questions/. /dns-exe-allocates-5000-ports-immediately‎CachedSimilarNov 28, 2013 . I just examined and found tons of open ports by DNS.EXE. Currports displays

www.symantec.com/business/support/index?page=content&id. ‎CachedSimilarJan 15, 2006 . You see messages that begin with "Sending ICMP Unreachable." in your firewall

www.networkworld.com/. /allow-both-tcp-and-udp-port-53-to-your-dns- servers.html‎CachedAug 22, 2010 . Security practitioners for decades have advised people to limit DNS queries

https://isc.sans.edu/forums/diary/. go. DNS. /11401‎CachedSimilarWhen asked, what port does DNS use, what you'll most often hear is "UDP/53", or

https://wiki.samba.org/index.php/Samba_port_usage‎Cached1 Introduction; 2 Identify on which ports and interfaces Samba is listening; 3 Port

www.speedguide.net/port.php?port=53‎CachedSimilar13 records . Kerio Personal Firewall (KPF) 2.1.4 has a default rule to accept incoming packets

www.webopedia.com/quick_ref/portnumbers.asp‎CachedSimilarIn TCP/IP and UDP networks, a port is an endpoint to a logical connection and

https://community.mcafee.com/thread/50233‎CachedSimilarNov 26, 2012 . Check the thresholds set on the UDP: Port Scan alert/signature. if it's to low, then

www.arubanetworks.com/techdocs/. 60/. /Firewall_Port_Info.php‎CachedSimilarThis appendix describes the network ports that need to be configured on the

https://github.com/iBaa/PlexConnect/wiki/Troubleshooting‎CachedSimilarJul 16, 2014 . "DNSServer : Failed to create socket on UDP port 53: [Errno 48] Address . You

www.linuxnix.com/. /tricky-question-what-protocol-tcp-or-udp-dns-server- uses-when-a-client-queries.html‎CachedSimilarNov 26, 2013 . By default DNS server will serve all client queries with UDP protocol on 53 port.

www.tcpipguide.com/. /t_DNSMessageGenerationandTransport-2.htm‎CachedSimilarDNS is itself a perfect example of the valid reasons for having both UDP and TCP

technet.microsoft.com/en-us/library/dd197515(v=ws.10).aspx‎CachedSimilarMessages are sent over UDP and DNS servers bind to UDP port 53. When the

compnetworking.about.com/od/tcpip/l/blports_gl50.htm‎CachedSimilar52, TCP UDP, XNS Time Protocol. 53, TCP UDP, Domain Name Server (DNS).

dnsamplificationattacks.blogspot.com/. /source-port-chargen-destination-port .html‎CachedSimilarJul 3, 2013 . Source port: Chargen Destination port: Chargen . "In the UDP implementation of

www.clearfoundation.com/component/option,com. /id,60575/‎CachedSimilarClearFoundation is dedicated to the vision that every small organization and

www.auditmypc.com/udp-port-53.asp‎SimilarUDP Port 53 protocol and security warnings including related ports. . DNS

https://dnsscan.shadowserver.org/‎CachedSimilarThe goal of this project is to identify DNS servers that will send a reply to any IP .

www.zytrax.com/books/dns/ch7/hkpng.html‎CachedSimilarMay 13, 2014 . avoid-v4-udp-ports { port; . }; avoid-v6-udp-ports { port; . };. Defines a list of port

superuser.com/questions/. /why-dig-to-router-is-on-dns-53-port‎CachedSimilarMay 7, 2013 . It has 8.8.8.8 and 8.8.4.4 set as DNS. from windows: nslookup . . @restart.

https://pentest-tools.com/discovery. /udp-port-scanner-online-nmap‎CachedSimilarDiscover open UDP ports on your target system by scanning with nmap. Scan

https://trac.torproject.org/projects/tor/ticket/8215‎CachedSimilarI tried to get DNSPort that seems likely to be the only Tor UDP port around, but

https://groups.google.com/d/topic/comp. dns.bind/yNCB73tU7Zw‎CachedSimilarYes. :). Normally, ordinary queries use UDP, and zone transfers use TCP.

www.fwbuilder.org/4.0/docs/users_guide5/udp-service.shtml‎CachedSimilarMany well-known applications use UDP as their transport, such as DNS . As in

www.windowsnetworking.com/. /WhyDNSWorksOnBothTCPandUDP.html‎CachedSimilarDec 9, 2010 . A client computer will always send a DNS Query using UDP Protocol over Port 53

security.stackexchange.com/. /blocking-incoming-traffic-from-privileged- port-1024-to-mitigate-dns-ddos-amp‎CachedMultiple DNS queries are sent to a vulnerable name server with the . The name

wiki.wireshark.org/CaptureFilters‎CachedSimilarJul 9, 2013 . Capture only DNS (port 53) traffic: port 53. Capture non-HTTP and . . (tcp dst port

blogs.msmvps.com/. /the-dns-cache-poisoning-vulnerability-microsoft- kb953230-patch-and-ports-reservation-explained/‎CachedSep 3, 2009 . The DNS Cache Poisoning Vulnerability, Microsoft KB953230 Patch, and UDP

blog.cloudflare.com/understanding-and-mitigating-ntp-based-ddos-attacks/‎CachedJan 9, 2014 . We've written in the past about DNS-based reflection and amplification attacks

docs-legacy.fortinet.com/fos50hlp/50/. /session_helpers.106.07.html‎CachedTo accept DNS sessions you must add a security policy with service set to any or

zarb.org/~gc/html/udp-in-ssh-tunneling.html‎CachedSimilarSep 3, 2010 . In this document, we'll access another machine's network internal DNS services (

www.knowthenetwork.com/. /fun-with-udp-conflicts-and-dns-port- randomization/‎CachedSimilarFun with UDP conflicts and DNS port randomization. by Keith Crawford on

www.softpanorama.org/DNS/dns_ports.shtml‎CachedSimilarMay 16, 1996 . Windows DNS Service uses dynamic UDP ports (above 1023) for all standard

www.scs.stanford.edu/nyu/02sp/notes/l10d.txt‎CachedSimilar. bugs * dns - Listens on TCP and UDP ports 53 - Most requests UDP packets

linux.die.net/man/1/dig‎CachedSimilardig (domain information groper) is a flexible tool for interrogating DNS name

https://www.dns-oarc.net/. /mitigating-dns-denial-of-service-attacks‎CachedSimilarMar 29, 2012 . DNS generally uses the connectionless User Datagram Protocol (UDP) . Since

systembash.com/content/dns-server-firewall-open-ports/‎CachedSimilarOct 4, 2006 . Everyone knows that DNS servers use UDP port 53 for queries, right? Well

stackoverflow.com/. /block-all-udp-traffic-except-dns-using-iptables‎CachedSimilarI am trying to block all UDP traffic on my machine except for DNS . the firewall

en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers‎CachedSimilarThis is a list of Internet socket port numbers used by protocols of the Transport

https://forums.plex.tv/. /70892-error-with-installation-failed-to-create-socket- on-udp-port-53/‎CachedSimilarDNSServer : Failed to create socket on UDP port 53: [Errno 48] Address already

www.donelan.com/dnsacl.html‎CachedSimilarWhat are the minimum packet types required for the best DNS performance? .

www.proprofs.com/forums/index.php?showtopic=20086‎CachedSimilarIn a famous book Sybex by David Groth I`ve read: " TCP port 53 DNS zone

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