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rakesh kumar
rakesh kumar

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Troubleshoot Network Slow Problems In Linux

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Troubleshoot Network Slow Problems In Linux
understanding ifconfig command in Linux
check network interface status using ifconfig command in Linux
check network packets loss using ifconfig command in Linux
check MTU size using ifconfig command in Linux
Change IP address using ifconfig command in Linux
Network Metrics
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how-to-monitor-linux-system-with-telegraf-influxdb-grafana

Troubleshoot Network Slow Problems In Linux

There are various Linux commands that can be used to troubleshoot network slow problems. Here's an example of how to use the ping, grep, and awk commands in a pipeline to diagnose a slow network connection:

1.Open a terminal window and type the following command to test the latency of your network connection:

ping google.com
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This command will send packets to the Google server and measure the round-trip time. Observe the output to see if the ping times are high or if there are packet losses.

2.If the ping times are high or there are packet losses, you can use the grep command to filter out the relevant information from the output. For example:

ping google.com | grep "time="
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This command will only display the lines that contain the "time=" string, which shows the round-trip time for each packet.

3.If you want to calculate the average round-trip time, you can use the awk command to extract and manipulate the relevant data. For example:

ping google.com | grep "time=" | awk -F'=' '{ sum += $2 } END { print "Average ping time: ", sum/NR }'
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This command will calculate the average ping time by extracting the second field (i.e., the ping time) from each line and then dividing the sum by the number of packets sent (i.e., the number of lines).

4.You can also use the traceroute command to diagnose network latency issues by tracing the route that packets take to reach the destination. For example:

traceroute google.com
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This command will display the IP addresses of the routers that the packets pass through to reach the Google server. Observe the output to see if there are any delays or packet losses at any of the intermediate routers.

By using pipeline commands such as ping, grep, and awk, you can quickly diagnose and troubleshoot network slow problems in Linux.

check network packets loss using ifconfig command in Linux
You can use the ifconfig command to troubleshoot the network packet loss issue. To do this, type the following into your terminal:

$ ifconfig eth0 | grep -i “dropped”
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This will return a list of all of the packets that have been dropped on eth0.

Example:

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9001 inet 10.1.0.17 netmask 255.255.255.0 broadcast 10.1.0.255
ether 02:4b:3b:79:a1:95 txqueuelen 1000 (Ethernet)
RX packets 117321 bytes 34602342 (32.9 MiB) RX errors 0 dropped 9072 overruns 0 frame 0
TX packets 110819 bytes 19586497 (18.6 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
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Change IP address using ifconfig command in Linux
If you see an interface that is not configured correctly, you can use ifconfig to change its settings. For example, to change the IP address of eth0 to 192.168.0.100, you would type the following into your terminal:

ifconfig eth0 192.168.0.100 netmask 255.255.255.0
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