packet

Failed to send 300 byte long packet over fallback interface

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1.0 Error

While configuring a server, the following errors were noted in the logfiles.

send_packet: Operation not permitted
dhclient.c:2386: Failed to send 300 byte long packet over fallback interface.
DHCPREQUEST on eth0  port 67 (xid=0x1580bfd0)
...

2.0 Solution

There are two possibilities depending upon whether DHCP is being used for getting the network IP address or not.… Read more

Network Traffic Control with tc command in Linux

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1.0 Network Traffic Control

For any host connected to a network, there is the possibility of network congestion. The network bandwidth is always limited. As the data flow on a network link increases, a time comes when the quality of service (QoS) gets degraded.… Read more