#Mac os 8.6 network configuration mac os x

The user can't do anything with the item. With this privilege, a user can place items into a directory, but can't see the contents of that directory. This privilege lets a user see items in a directory, but not change them. This is the broadest level of access and lets the user to whom it is assigned read and write to the item to which it is assigned. Others includes those users who are neither the owner nor members of a group.ДЇor each level of access, there are four access options: Many of these default groups will look odd, and some are even nonexistent (you will see Members of group '').

#Mac os 8.6 network configuration mac os x

By default, Mac OS X includes a number of groups for which various permissions are assigned to different volumes and directories. There are three levels of access privilege that can be set for any item these are the following: This Traceroute window shows the path from my machine to Understanding and Setting PermissionsДЄccess to items on your Mac OS X machine, whether from the machine directly or over a network, is determined by the access privileges that are set for those items. The window will be filled with information that shows you each step of the path from your machine to the one whose information you entered (see Figure 25.11). Open the Network Utility and click the Traceroute tab.Д®nter the domain name or IP address to which you want to trace a route, and click Trace. Sometimes looking at the specific route between two machines can help you identify the source of problems you might be having. If not, you know that you have a fundamental connection problem. If the ping is successful, you know that the communication path between the machines is valid. If they are able to successfully communicate, you will see statistics about how fast the pings are taking (see Figure 25.10). You will see your machine attempt to communicate with the machine whose address you entered. Watch the results in the lower part of the window. Open the Network Utility and click the Ping tab.Д®nter the IP address or URL for the machine you want to ping.

To ping a machine, perform the following steps: If it isn't, you know that there is a fundamental problem with the communication between the machines, and this helps you know where to troubleshoot. If the ping is successful, you know that there is a valid communication path between two machines. Ping is a way to check on the fundamental communication between two machines. Troubleshooting network problems can be difficult because it can be hard to identify where the source of the problem is for example, with the machine you are using, with the machine you are accessing, with an application, and so on. Reports information about a specific individual based on the person's e-mail address.Д®nables you to scan for open access ports on a specific domain or IP address.Д¬overing each of these services in detail is beyond the scope of this chapter, but the next couple of examples should be helpful in getting you started. Traces a specific route between machines and provides statistics about that route, such as the maximum number of hops needed.Д®nables you to look up information about a domain or IP address such as whom it is registered to. Provides various information about a specific Internet address. Presents various statistics about the performance of the different network protocols.Д¬ontacts a specific server to assess network performance. Provides information about the selected network interface. Tabs in the Network Utility Application Tab Ping is a useful way to test your connection to another machine (in this case, I pinged Table 25.2. When you launch Network Utility (Applications/Utilities), you will see a window with eight tabs, one for each service that the application provides (see Figure 25.10).

The Network Utility provides a set of tools you can use to assess the condition of communication across machines on your network as well as a set of tools to enable you to get information about various sites on your network and on the Internet. Using the Network Utility to Assess Your Network Two of these are the Network Utility, which enables you to diagnose your network connections, and NetInfo Manager, which provides comprehensive control over many aspects of a Mac OS X machine. In addition to the tools you need to configure and start various network services, such as file sharing or FTP, Mac OS X includes tools you can use to monitor and administer your network.