Network Supervisor's Toolkit

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Text File | 1996-07-10 | 24.9 KB | 495 lines

What is LANMAP? LANMAP is a Local Area Network utility program designed specifically for use with Novell networks. The program is used to obtain a pictorial representation of the user area, combined with a graphic view of which user is logged onto each workstation. Using the built-in editor, or any another text editor, the System Administrator can draw a map of the network, save it to disk, and instantly track real-time workstation use. This can be useful for security monitoring, LAN use estimates, or finding which users are still logged on after hours or after a broadcast message to log off for system maintenance. LANMAP is very simple to use. The main user menu is straight forward. All program functions can be accessed from the menus, so command line options are not necessary, but they are available for those who prefer them. The built-in editor is amply suited to design text maps. It is not a full featured editor, but does include the ability to draw line graphics characters using the cursor keys if desired. If the editor is not adequate for some use, then any text editor may be used to create an ASCII map file. How to Install LANMAP LANMAP can be installed on any hard disk, floppy disk, or network drive by using the normal DOS COPY command, or the Netware equivalent NCOPY command. The following set of instructions will install LANMAP under the PUBLIC subdirectory. Here we are assuming that SYS:PUBLIC is mapped to the Z: drive, as this is the default mapping for Netware. If this is not the case, or you do not wish to install LANMAP in the PUBLIC directory, then simply substitute the appropriate drive letter for your case. Each command is followed by pressing the <enter> key. 1) Make SYS:PUBLIC the default drive. Type Z: 2) Copy the LANMAP files into PUBLIC. Type NCOPY A:*.* Z:*.* 3) Make LANMAP a read-only file. Type FLAG Z:LANMAP.COM SRO 4) Make NETLIST a read-only file. Type FLAG Z:NETLIST.COM SRO The LANMAP files are now installed in the PUBLIC directory. How to Run LANMAP LANMAP is invoked by typing LANMAP at the DOS prompt and pressing <enter>. From here on the program options are selected via the main menu, which appears on the opening screen. Also displayed on the opening screen is the name of the Active Map File and the program credits, including the version number and the copyright notice. (Command line options are discussed at the end of this document.) In the upper left corner of the opening screen will be a message stating what the name of the Active Map file is. This is the file that will be loaded for editing or displaying. If there is no Active Map file, then this will be stated. On the bottom line of the screen is the credit line. This line states the version number and contains the copyright notice. In the center of the screen is the main menu. This is a list of four options surrounded by a box. One of the choices will be highlighted. To highlight a different option, press the up or down arrow keys. To select the highlighted option, press the <enter> key. Choosing "EXIT" will terminate the LANMAP program. Choosing "Display LAN Map" will cause LANMAP to load the Active Map file from disk, display the file on the screen, examine it for node information, begin polling the network for active nodes, and display user information on the displayed map. If no Active Map file is defined, then a message will be displayed which states that "You must specify a Map to display or edit." Pressing a key will return you to the opening screen and the main menu. Choosing "Edit a Map File" will cause LANMAP to load the Active Map file from disk and display the first screen full. It then accepts further user input as text which is added to the map. The editor itself will be explained later. If no Active Map file is defined, then a message will be displayed which states that "You must specify a Map to display or edit." Pressing a key will return you to the opening screen and the main menu. Choosing "Select a new Map" will cause LANMAP to ask two questions. First, you are asked "Which drive letter contains the MAP file?" The current default drive letter will be displayed. If this drive designator is correct, then simply press <enter>, otherwise type the drive letter which contains the Map file you wish to access. You do not need to type the colon, although you may if you wish. Note that only a drive letter may be specified; no PATH is allowed. The subdirectory that contains the Map files should be assigned to a drive letter with the Netware MAP command. For instance, if the Map files are contained in the PUBLIC subdirectory, then before starting LANMAP you should have typed a command similar to the following: MAP Z:=SYS:PUBLIC. Then, when asked to enter the drive letter you need only type Z and press <enter>. Second, you are asked "What is the name of the MAP file?" Here you should type the name of the Map file which you wish to use. Type the file name in the form FILENAME.EXT (any legal DOS file name is allowed). If the named file does not exist, then it will be created. If no file is specified, then a message to that effect will be displayed, and pressing any key will return you to the opening screen. If an existing file name is specified, then you will return to the opening screen and the new Active Map file will be indicated in the upper left corner of the screen. If you wish to set a default file name, LANMAP will read the default Map file name from the DOS ENVIRONMENT area. For instance, if your Map file is called LANMAP.MAP, then at the DOS prompt type SET LANMAP=LANMAP.MAP to create the default. Then, when prompted for the file name, LANMAP.MAP will appear in the file name space and you can simply press the <enter> key to select the default. This SET command can be placed in the AUTOEXEC.BAT file if desired. Using the Editor The editor included with LANMAP is functional but not fancy. It is used to edit plain ASCII text files which LANMAP will load and process as Map files. If you have a favorite editor, or require sophisticated editing features, then any text editor which can produce ASCII files will be appropriate for making Map files. Note that any line which is over 80 characters will be truncated to 80 characters. Each Map file may be a maximum of 250 lines long. If you create a Map file longer than 250 lines, the excess lines will be ignored when the Map is loaded. The bottom line of the screen displays the status line. This line shows the CsrGrph indicator, the cursor line, the cursor column, the editor function, and the name of the Map file. The CsrGrph indicator, if on, shows that pressing cursor arrow keys will display graphics line characters in addition to moving the cursor. To toggle CsrGrph on and off, press ^G (hold down the <ctrl> key and press the G key at the same time). The graphics line characters can be used to show walls, hallways, or cubicle boundaries. Only vertical and horizontal line segments are available, the corner segments cannot be produced. The cursor line and cursor column indicate which line and column of the Map file the cursor is located on. This is the place that the next typed character will appear. The editor function indicates what the editor is currently doing. Normally this will read "Edit." During a file save it will read "Save" and while quitting (abandoning a file) it will read "Quit." Saving an edited Map file When done editing a Map file, press ^S three times in a row (hold down the <ctrl> key while typing S three times). This will cause the Map file to be saved on disk. Abandoning an edited Map file If you have made changes to a Map file, and decide that you don't like them, you may exit the editor without saving your work. This is done by pressing ^Q three times in a row (hold down the <ctrl> key while typing Q three times). Cursor movement The cursor may be moved by using the Tab key, the cursor (arrow) keys, the <enter> key, the Home, End, PgUp, and PgDn keys. The only key that will move the cursor past the current end of file (add lines to the file) is the <enter> key. Once line 250 is reached, no more lines can be added and the cursor will not move any further. Adding text/characters To add a character to the Map, simply type that character. It will become part of the Map at the current cursor position. There is no insert mode. To delete a character, you may either backspace over it, or type a space over it. The Del key does not delete characters. To add more lines to the bottom of a Map, use the <enter> key. Adding Workstation Nodes to the Map Since this program is used to display the user name associated with each active node on the network, the most important information on every Map is the node information. Each node is identified by typing its PHYSICAL address enclosed in curly brackets "{}." When LANMAP first loads a Map file for display, it searches for information enclosed in {} and assumes that this information is a physical node address. A physical node address is that hexadecimal address which is either permanently burned into the network interface card, or set with DIP switches at installation time. Either way, each card on the network MUST have a unique physical address. If you have multiple networks which are bridged either internally or externally, it is possible to have two Physical Addresses which appear to be the same. In fact, the Physical Address consists of both the Network Interface Card's address, and the Inter-network address. For instance, if you have two separate Proteon ProNet networks joined by a Novell supported X.25 external bridge (or internal bridging for that matter), it is possible to have duplicate Physical addresses set on two of the Proteon network interface cards. However, each network has an Inter-network address, which was specified when the Netware Operating System was Genned (When GENOS was run). In this case, node addresses should be specified by both the physical address and the inter-network address enclosed in curly brackets "{}" and separated by a slash "/". (i.e. {10/F} for a physical address of 10 and an inter-network address of F). Other network topology/bridge combinations can also produce situations where it is necessary to specify both the physical address and the inter-network address of each workstation. The above is just one example. It should be noted that networks without bridges will not require an inter-network address to be specified. Only in instances where there are two or more network addresses present will an inter-network address need to be specified. If a node address is specified without an inter-network address, the inter-network address of the network the workstation running LanMap is on will be used. With the Novell S/Net network, the physical address is directly related to which port the network interface card is attached to. Please note that a node's physical address has no relation to its logical station address. The logical station is the number that appears when you use the Netware USERLIST command. When alphanumeric characters appear in a hexadecimal address, uppercase characters must be used. Following are some examples of physical addresses as they should be specified in the Map files. IBM Token Ring: {10005A0069CF} where the last six characters can change with each card. These addresses are burned into each Token Ring card by IBM at manufacturing time. Novell S/Net: {1} ... {A} ... {18} are valid values, where {1} corresponds to port 1, {A} to port 10, and {18} to port 24. These ports are located on the back of the 68B file servers. Gateway G-net: {1} ... {FF} are valid values. These values are set via DIP switches at installation time. Ethernet: These addresses are burned into each card at manufacturing time. Proteon ProNet: {1} ... {FF} are valid values. These values are set via DIP switches at installation time. Novell S/Net (Multiple Servers): {1/1}, {A/FF}, and {14/8} are examples of valid values. In the first case, 1 is the workstation physical ID, and 1 is the internetwork address. In the second case, A is the workstation physical ID, and FF is the internetwork address. A list of active physical nodes can be obtained using the NETLIST utility included on the original LANMAP diskette. At the DOS prompt, type NETLIST and press <enter>. A listing of each attached file server will appear, along with a listing of each user logged in and that user's physical node address, including the inter-network address. Enter these addresses in the Map file. You can redirect the NETLIST output to a DOS file by typing NETLIST > FILENAME.EXT You can redirect the NETLIST output to the printer by typing NETLIST > LPT1: A sample Map is contained in the file SAMPLE.MAP. The DISPLAY Option When you choose the Display LAN Map option from the main menu, the Active Map file will be loaded from disk, the first page will be displayed, and the entire map will be scanned for nodes. Remember that a node is any text enclosed in "{}." After the nodes are found, they will be highlighted on the screen. On a color monitor, they will be displayed as brown characters. On a monochrome monitor, they will be displayed as normal intensity characters. The inter-network portion of a node address will not be highlighted. On a color monitor they will be displayed green, and on a monochrome monitor they will be displayed at normal intensity. From this point on, at regular intervals, LANMAP will poll the network for active nodes. The login name of each user on the LAN will be displayed in place of the physical node address. Accompanying each login name will be the network station ID of that node. Login names for users who are logged in to LANMAP's default server will be displayed in yellow on a color monitor (high intensity on a monochrome monitor) while users who are logged in to other servers on the same network will be displayed in brown (normal intensity on a monochrome monitor). The station that is currently being used to run LANMAP will be displayed in blinking characters. To exit the Display option, simply press the <enter> key. If a password has been set, then you must enter it to exit Display mode. You have one minute to enter the correct password. If one minute passes, or the incorrect password in entered, then Display will resume. Both LANMAP and NETLIST will recognize multiple servers on a single network, and all the users logged into those servers. NETLIST will recognize eight (8) attached servers, which is the maximum allowed by Novell. LANMAP will also recognize eight (8) attached servers, and currently a maximum of 255 users. However, for either program to see a file server, the work station running the program must be previously attached to that server either by the LOGIN or the ATTACH command. For example, if there are three file servers on a network, called FS1, FS2, and FS3, the user should type something similar to the following before running LANMAP or NETLIST: LOGIN FS1/username ATTACH FS2/username ATTACH FS3/username. The "Logging" Suboption LANMAP has the ability to keep a running record of how many users are logged into the different file servers during the time it is running in the Display mode. To activate Logging, press the 'L' key (upper or lower case). You will be presented with a screen telling you which logged drive the files will be kept on, and what the file names will be. The drive will be the same one on which the Map file is located (make sure you have Write/Create access to that directory), and the file names will be made out of the first eight characters of the File Server names with an extension of .USE. You will then be asked if you wish to start logging - Press the 'Y' or the 'N' key to answer the question. There is no default answer, the 'Y' or 'N' that appears after the question is there to tell you the current state of the Logging operation. If you press 'Y', you will be asked to enter a logging interval. The value you enter specifies in how often in minutes the logging statistics will be written. Only values between 1 and 30 minutes are legal. Each time the specified interval expires, a record will be written to the appropriate file for each file server. The record will consist of the date, time and number of users logged in. You have no control over which disk (directory) is used, or what the file names are. You only have control over whether or not logging is active, and the logging time interval. The "Password" Suboption The person running the LANMAP application can choose to set a password which is required before LANMAP will terminate the Display option. In this way, some unknown assailant will be unable to deactivate LANMAP if it is left running unattended. To invoke the Password option, Press the 'P' key (upper or lower case). The screen will be cleared, and a series of passwords will have to be entered. The password is only in effect until LANMAP is EXITed. Each time the program is run, the password suboption must be re-invoked. If there is already a current password installed, then you must first enter it in order to change the current one. You will be prompted to do so. If you enter the incorrect password, then you will be returned to the Display function. If you enter the correct password, then you will be given the opportunity to change current password. If there is no current password, or you correctly enter the current password, then you will be prompted to enter a new password. After you either enter eight (8) characters, or press <enter>, you will be prompted to re-type the same password. If you re-type it successfully, then the password will be changed. If not, then you must go back and start from the new password again. A password is any sequence of up to eight character-producing keystrokes. If you wish a password shorter than eight characters, then it should be terminated with the <enter> key. Just realize that EVERY keystroke counts as part of the password, even the <enter> key. Below are some examples of different passwords possible: duckling DuCkLiNg DUCKLING <F2><esc><Home><enter> mush<enter> ^Z^Z<PgDn><enter> If you forget the password that you typed, you are out of luck. There is no way to find out what it is, and you must re- boot the PC in order to make LANMAP stop running. The "Server" Suboption As stated before, login names which are attached to LANMAP's default server are displayed in yellow (or high intensity). To cause a different set of names to be highlighted, you must change LANMAP's default server. One way to do this is to exit the LANMAP program and use Netware to change servers. The other way is to press the 'S' key (upper or lower case) to bring up the list of currently attached file servers. The current default file server will be highlighted. By pressing the up and down arrow keys to highlight another server, and pressing the Enter key to select the desired server, you can select a new current default file server. Note that when one workstation is logged into multiple servers under more than one name, the name which is being used on the current server will be displayed. If a user is not attached to the current server, then one of the other login names will be displayed. When you exit LANMAP, the default server will be restored to the default server in effect when LANMAP was started. The "User search" Suboption Suppose you want to know where a particular user is logged on, but your Map is somewhat lengthy and you don't want to scroll through it. To accomplish this you may invoke the User search suboption. To do this, press the 'U' key (upper or lower case). You will be presented with a screen which asks you to enter the Login name of the user for whom you wish to search. If that user can be located on any screen AFTER the one currently being displayed, then two things will happen. First, you will be told how many times that user occurs, second you will be brought to that screen immediately. If possible, that user's node will be displayed on the middle line of the screen. Note that only screens AFTER the current one are searched, so it might be a good idea to use this option from the top of the Map. Command Line Options If you desire, LanMap can be started with many options specified by a combination of the DOS environment and the command line. This is intended to help you run LanMap unattended, for example, from an AUTOEXEC.BAT of during System Login. For an explanation of how to set a default Map filename, see "How to Run LanMap," under the "Select a New Map" section. The form of the LanMap command follows: LANMAP [/P=xxxxxxxx] [/L=nn] [/AUTO=YES] Each of the items in square brackets is optional. The options may be entered in lower or upper case. /P=xxxxxxxx is used to specify the Password. Upper/Lower case is respected. Up to 8 characters will be recognized. /L=nn is used to specify a Logging interval, and at the same time turn Logging on. Only values of 1 to 30 are allowed. If values outside this range are entered, then 15 will be used. If illegal characters (non-digits) are entered, then 15 will be used. /AUTO=YES is used to tell LanMap to autostart. This means that it does not stop at the main menu, but rather assumes the default disk drive, reads the default Map filename from the DOS environment, and runs the "Display LAN Map" option. If /P=xxxxxxxx was specified, then xxxxxxxx becomes the Exit Password. If /L=nn was specified, then usage logging will take place every nn minutes. The word "yes" may be upper or lower case, but ALL letters must be upper or lower case, not mixed.