You have been hired to help a company that has their networks in Nashville, Tenn

ID: 3537020 • Letter: Y

Question

You have been hired to help a company that has their networks in Nashville, Tennessee and Toronto, Canada. They have changed operating systems to Linux and are having some troubles with their DNS and DHCP configuration.

Here are some details about the corporation:

Create a brief document for the company about DNS and DHCP under Linux, including the following:

Provide the company with some insight into how to it can incorporate the information your document provides into its system to make it better.

The company is also looking to us SAMBA, so include the following:

Adhere to MLA formatting and reference guidelines when writing your response. Additionally, your response should be free of grammatical errors, use complete sentences, and give specific details to support statements.

PLEASE IF YOU WANT ME TO RATE YOUR JOB, UPLOAD IT FIRST AND SEND/PUT THE LINK FIRST, AND THEN I WILL RATE IT ..... ALSO MAKE SURE IT CONTAIN ALL THE QUETIONS .... THANKS

Deliverable Length: 7 to 10 PowerPoint slides Details:

Here are some details about the corporation:

The Nashville site has a medium-sized network of 170 users and 5 subnets using TCP/IP.
That site also has Internet connectivity and maintains a Web server. Both sites have customer service, business, inventory, and IT departments.
The Nashville site houses most of the management team, but Toronto has a vice president in charge of that location with an operations manager and supervisors for the customer service, business, inventory, and IT groups at that location.
Nashville also has a marketing department.
The IT department is very inexperienced with some networking issues.

Create a brief document for the company about DNS and DHCP under Linux, including the following:

Their purpose
Configuration files
Troubleshooting tips

Provide the company with some insight into how to it can incorporate the information your document provides into its system to make it better.

The company is also looking to us SAMBA, so include the following:

Explain SAMBA.
What can SAMBA be used for?
Should it be used in this particular company's network to share files? Why or why not?

PLEASE IF YOU WANT ME TO RATE YOUR JOB, UPLOAD IT FIRST AND SEND/PUT THE LINK FIRST, AND THEN I WILL RATE IT ..... ALSO MAKE SURE IT CONTAIN ALL THE QUETIONS .... THANKS

Explanation / Answer

The dnsmasq configuration is located in /etc/config/dhcp and controls both DNS and DHCP server options on the device. In the default configurationthis file contains one common section to specify DNS and daemon related options and one or more DHCP pools to define DHCP serving on network interfaces.

Possible section types of the dhcp configuration file are defined below. Not all types may appear in the file and most of them are only needed for specialconfigurations. The common ones are the Common Options, the DHCP Poolsand Static Leases.

The config section type dnsmasq determines values and options relevant to the overall operation of dnsmasq and the DHCP options on all interfaces served. The following table lists all available options, their default value, as well as the corresponding dnsmasq command line option.

The number one thing to do when troubleshooting any service is to determine if it%u2019s even breathing or not. First check the Services to see if it%u2019s running. The Services applet is traditionally found with Administrative tools, but is also available with Computer Management and also within Control Panel.

If you%u2019re worried about DHCP functionality, go to a client machine and run IPCONFIG /RELEASE, and then IPCONFIG /RENEW. Of course, this assumes that the server has general network access, itself. With DHCP, you also need to make sure that the DHCP scope has been activated, which must be done after it%u2019s created. You might also encounter client messages indicating a duplicate IP address. If this happens, the problem is that another DHCP server on the network is assigning the same addresses to computers.

DNS is a bit harder to troubleshoot. Again, make sure that the service is up and running. You can also check that DNS is resolving. Sometimes it take a few minutes for DNS resolution to work on client machines, but beware %u2013 check the event logs to see if there are any DNS-related messages which would indicate further problems (such as a network card driver incompatibility).

Finally, you can run NSLOOKUP with an IP address for a system that you know is outside of your local LAN, or an address that would normally be handled by DNS. NSLOOKUP does the reverse of standard DNS, and should tell you the FQDN that DNS is returning for that particular IP address. If it fails to do so, you need to check DNS connectivity by PINGing the DNS server from a client. You also need to check and make sure that the results of NSLOOKUP are actually valid and true: if they%u2019re not, there%u2019s a problem with the DNS database and requires some reconfiguration.

Samba is a suite of Unix applications that speak the Server Message Block (SMB) protocol. Microsoft Windows operating systems and the OS/2 operating system use SMB to perform client-server networking for file and printer sharing and associated operations. By supporting this protocol, Samba enables computers running Unix to get in on the action, communicating with the same networking protocol as Microsoft Windows and appearing as another Windows system on the network from the perspective of a Windows client. A Samba server offers the following services:

Share one or more directory trees

Share one or more Distributed filesystem (Dfs) trees

Share printers installed on the server among Windows clients on the network

Assist clients with network browsing

Authenticate clients logging onto a Windows domain

Provide or assist with Windows Internet Name Service (WINS) name-server resolution

The Samba suite also includes client tools that allow users on a Unix system to access folders and printers that Windows systems and Samba servers offer on the network.

Samba is the brainchild of Andrew Tridgell, who currently heads the Samba development team. Andrew started the project in 1991, while working with a Digital Equipment Corporation (DEC) software suite called Pathworks, created for connecting DEC VAX computers to computers made by other companies. Without knowing the significance of what he was doing, Andrew created a file-server program for an odd protocol that was part of Pathworks. That protocol later turned out to be SMB. A few years later, he expanded upon his custom-made SMB server and began distributing it as a product on the Internet under the name "SMB Server."