There is a problem in the production Linux server and you have contacted a hardw

Question

There is a problem in the production Linux server and you have contacted a hardware vendor to assist in troubleshooting a problem with excessive memory usage in your server. You are monitoring the server and develop a workaround that will restore services to your production environment. You suggest this workaround to management and to the hardware vendor and they are in disagreement as to implementing the workaround. The hardware vendor wants to get to the root cause of the problem. Would you implement the workaround or not? Why or Why not? Write a short paragraph with your analysis of the problem, your recommendations for 1) the next steps in communication, 2) a testing plan and 3) an action plan to determine root cause and restore services to your company.

Explanation / Answer

If there is a problem in the production Linux server and you have contacted a hardware vendor to assist in troubleshooting a problem with excessive memory usage in your server.

You are monitoring the server and develop a workaround that will restore services to your production environment.

You suggest this workaround to management and to the hardware vendor and they are in disagreement as to implementing the workaround.

First of all need to analysis of the problem, whether it will be hardware failure or software failure of linux server, then need to be follow a recommendations for---

1) the next steps in communication,

2) a testing plan

3) an action plan to determine root cause and restore services to your company.

Finding out the root cause for the failure of the whole server due to hardware and software failure.

Then troubleshooting the communicative connection of network issues or server down issues.

There are many network troubleshooting tools which are useful to identify the exact point of failure of the whole linux server environment and services and according to that decide to opt for next steps should be for a couple of devices for a local server or manages hundreds of PCs of big organizational server.

There are various tools as follows.

1) Tools to check Website: Active or Down

To be understood whether a website is down or slow or responding actively.There are various tools to check like Website Down Checker is required to quickly trace out whether any website or webpage are in trouble within network.

To discover quickly web servers are responding or not there are many sites act as a tool to monitor the current status of websites .So need to enter the IPor hostname to be traced out.

Please enter IP address or hostname: ______________

2) Ping:

A tool to check if a server, website, or device is responding.

Ping is a highly popular and useful to act as a software utility for reaching a website or networked device that can measure the response time and also measures number of data packets get lost on the network route.

Linux comes with the ping to use this tool, by opening a command window to type “ping” followed by host name, IP address, or URL and also be used to check the availability of devices on LAN.

3) Trace route:

A tool to detect the exact point of a connection that is broken.The trace route utility traces and follows the route data packets travelling from one point to other.

Trace route acts as a command line utility on Linux to run successfully finding out an ordered list of the routers through out the way to final destination with timing of each router table.

4) Network monitoring software:

To monitor and regulate the devices, websites, and services of servers.

Server goes slow due to physical machine power lose, the OS or NIC face some trouble , here a network monitoring solution renders a real-time monitoring for servers locally or remotely .To automate “ping checks” to regulate a server, VoIP devices are responding and show the status of local and remote devices ,where this monitors the performance using protocols like SNMP, SSH, and WMI to measure server CPU, disk, and memory usage, network bandwidth with some ACK to user or client.

5) Connectivity logs

Connectivity logs are used to be followed the status of servers, services, and websites and client machine, this tool is required to figure out the status of issued server responding or down and also services of excessive latency for performance .

6) Communication

Communication is necessary to figure out of troubleshooting server problems to save time of detecting and solving server problems by monitoring the services.

There are many tools to be used to track metrics of latency and I/O speeds and also memory usages .

Necessary recommendation:

Killing ongoing processes as the system running Out-of-memory (OOM) and return back the killed memory.

Linux comes for identifying possible resource usages to reserve memory for future uninterruptable use where the cache is used to store disk drive data and the kernel stores data in RAM to faster access on temporary basis.

Linux server holds a score for each running process to represents which of the process is going to be killed at OOM .

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