icmp udp port 53 unreachable
... to the destination port number (TCP or UDP port) and the port process didn't exist. ... The ICMP Port Unreachable message originates from a host, not a router. ,Whose UDP section, Src Port: 53 (53), Dst Port: 5xxxx. I googled around, and I can't see any ICMP echo ping preceding, so I don't understand where those ICMP ... ,DNS problem: udp port domain unreachable ... Doing a tcpdump on kangah, I can see the message "udp port domain unreachable" Here are my DNS .... -A RH-Lokkit-0-50-INPUT -p udp -m udp --dport 0:1023 -j REJECT --reject-with icmp-port-unreachable ., ICMP unreachable port due to duplicate DNS queries ... 21:55:21.123012 IP 10.115.38.6.25275 > 75.75.75.75.53: 31881+ [1au] A? example.com. (40) ... 10.115.38.1: ICMP 10.115.38.6 udp port 25275 unreachable, length 92, Udp: 27777696664 packets received ... 262343581 packet receive errors. 105.88 datagrams received for every 1 UDP receive error is an ..., Linux PCs sending “ICMP udp port unreachable” to DNS server Original IP payload: udp src x.x.36.55/53 dst x.x.21.122/47927. ... The particular hosts it is querying for do not have an entry on the DNS for a reason). This is why the request is taking so lo, That's why your machine sends an ICMP unreachable back which includes ... Given that port 53 is DNS this might be caused by your machine ...,,It actually isn't, by sending an icmp port unreachable it is simply saying, nope, no DNS ... If it was responding it would send a UDP packet from port 53 as a DNS ... , 注意这里的描述，并不是端口没有开启服务，而是没有开启UDP服务，如果开启了TCP服务，照样也会回port unreachable。 3：Linux内核对UDP处理 ...
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 icmp udp port 53 unreachable 相關參考資料
Destination Unreachable - Savvius
... to the destination port number (TCP or UDP port) and the port process didn't exist. ... The ICMP Port Unreachable message originates from a host, not a router. https://www.savvius.com DNS - ICMP - Destination unreachable (Port unreachable) ?
Whose UDP section, Src Port: 53 (53), Dst Port: 5xxxx. I googled around, and I can't see any ICMP echo ping preceding, so I don't understand where those ICMP ... https://dnsmasq-discuss.thekel DNS problem: udp port domain unreachable - Experts Exchange
DNS problem: udp port domain unreachable ... Doing a tcpdump on kangah, I can see the message "udp port domain unreachable" Here are my DNS .... -A RH-Lokkit-0-50-INPUT -p udp -m udp --dport... https://www.experts-exchange.c ICMP unreachable port due to duplicate DNS queries - Ubuntu Forums
ICMP unreachable port due to duplicate DNS queries ... 21:55:21.123012 IP 10.115.38.6.25275 > 75.75.75.75.53: 31881+ [1au] A? example.com. (40) ... 10.115.38.1: ICMP 10.115.38.6 udp port 25275 unr... https://ubuntuforums.org networking - BIND ICMP Port Unreachable responses - Server Fault
Udp: 27777696664 packets received ... 262343581 packet receive errors. 105.88 datagrams received for every 1 UDP receive error is an ... https://serverfault.com networking - Linux PCs sending "ICMP udp port unreachable" to DNS ...
Linux PCs sending “ICMP udp port unreachable” to DNS server Original IP payload: udp src x.x.36.55/53 dst x.x.21.122/47927. ... The particular hosts it is querying for do not have an entry on the DNS... https://serverfault.com tcp - Why is my computer making unreachable ICMP requests to the ...
That's why your machine sends an ICMP unreachable back which includes ... Given that port 53 is DNS this might be caused by your machine ... https://serverfault.com Understanding the ICMP Protocol (Part 2) - TechGenix
http://techgenix.com [SOLVED] Firewall IP Attempting to Respond on Port 53 - DNS ...
It actually isn't, by sending an icmp port unreachable it is simply saying, nope, no DNS ... If it was responding it would send a UDP packet from port 53 as a DNS ... https://community.spiceworks.c 关于UDP接收icmp端口不可达(port unreachable) - Protocol ...
注意这里的描述，并不是端口没有开启服务，而是没有开启UDP服务，如果开启了TCP服务，照样也会回port unreachable。 3：Linux内核对UDP处理 ... https://blog.csdn.net |