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JUNOSe 9.1.x System Basics Configuration Guide > Managing the System > Managing Files

Managing Files

You are responsible for file management. Table 31 shows the types of system files and their corresponding extensions. 





 Table 31:  Types of System Files and Corresponding Extensions 


  Type of File


 Extension


 Description




 Configuration 



  *.cnf



 Snapshot of the system's configuration





 Core dump



 *.dmp



 File you can create for troubleshooting if a module fails





 History 



 *.hty (reboot.hty)



 Details of when and why modules rebooted





 Log 



 *.log



 A series of messages that describe events that occurred on the system





 Macro



 *.mac



 A macro program





 Release



 *.rel



 Software releases you can install in the system





 Script



 *.scr



 A sequence of CLI commands. When you run a script file, the system executes the commands as though they were entered at the terminal





 Secure Shell (SSH) Server public key



 *.pub



 Host key for the SSH server





 Statistics



 *.sts



 Bulk statistics created when you run the bulkstats commands





 Text 



 *.txt



 Text file

System files may reside in four locations:

The system space contains files for system operation. For example, the current software configuration is stored in the system space.

The user space is reserved for FTP server operations and has the typical directory structure of a secure FTP server. The root or top level directory is a read-only directory that contains two subdirectories:

Users can transfer files through FTP to the user space from a network host and vice versa. However, users cannot access the system space through FTP. To install a file from the user space to the system space, use the copy command. For detailed information about transferring files between locations, see Transferring Files.

To conserve NVS and minimize the installation time, files are not stored in both the system space and the user space. When you issue the copy command to install a file from user space to system space, the E-series router establishes a link to the file, but does not make a physical copy.

Managing the User Space from a Network Host

If you enable the system's FTP server (see Configuring the FTP Server), you can manage files on the user space from an FTP client on a network host. Table 32 lists the FTP protocol commands that the E-series router supports. Whether you can perform these functions on the user space depends on the features that the FTP client offers.





 Table 32:  FTP Commands That the System Supports 


 FTP Command


 Function




 HELP



 List supported commands.





 USER



 Verify username.





 PASS



 Verify password for the user.





 QUIT



 Quit the session.





 LIST



 List contents of a directory.





 NLST



 List directory contents using a concise format.





 RETR



 Retrieve a file.





 STOR



 Store a file.





 CWD



 Change working directory.





 CDUP



 Change working directory to parent.





 TYPE



 Change the data representation type.





 PORT



 Change the port number.





 PWD, XPWD



 Get the name of current working directory.





 STRU



 Change file structure settings (only stream mode supported).





 MODE



 Change file transfer mode (only stream mode supported).





 PASV



 Make the server listen on a port for data connection.





 NOOP



 Do nothing.





 DELE



 Delete a file.





 MKD, XMKD



 Make directory.





 RMD, XRMD



 Remove directory.





 RNFR



 Rename from.





 RNTO



 Rename to.

File Commands and FTP Servers

Commands—copy, configure file, and macro—that invoke a remote FTP server take place in the context of the current virtual router rather than the default virtual router. You must configure the remote FTP server so that any traffic destined for the virtual router can reach the virtual router; typically, you configure the FTP server to reach the default address of the system, which will always be able to reach the virtual router.

Renaming Files

To rename files, use the rename command. Table 33 shows the types of files you can rename in different locations.

rename

Deleting Files

Use the delete command to delete files in NVS. Table 34 shows the types of files you can delete in different locations.

delete

Monitoring Files

Use the dir command to view files in NVS.

NOTE: When high availability is enabled on the router, it is possible that files or file attributes may appear unsynchronized when they are not. When enabled, high availability mirrors configuration changes instantly from the active SRP to the standby SRP. However, although these changes are reflected immediately in memory, the standby SRP NVS is updated at 5 minute intervals.

dir

Viewing Files

Use the more command to display the contents of a macro, script, or text file. The file can reside in NVS on the primary SRP module, in NVS on the redundant (standby) SRP module, or on a remote server that you access using FTP.

more

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