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Directories on the Router

Some standard directories on the router are shown in Table 9.

Table 9: Directories on the Router

DIrectory

Description

/config

This directory is located on the router’s internal flash drive. It contains the active configuration (juniper.conf) and rollback files 1, 2, and 3.

/var/db/config

This directory is located on the router’s hard drive and contains rollback files 4 through 49.

/var/tmp

This directory is located on the router’s hard drive. It holds core files from the various processes on the Routing Engines. Core files are generated when a particular process crashes and are used by Juniper Networks engineers to diagnose the reason for failure.

/var/log

This directory is located on the router’s hard drive. It contains files generated by both the router’s logging function as well as the traceoptions command.

/var/home

This directory is located on the router’s hard drive. It contains a subdirectory for each configured user on the router. These individual user directories are the default file location for many JUNOS software commands.

/altroot

This directory is located on the router’s hard drive and contains a copy of the root file structure from the internal flash drive. This directory is used in certain disaster recovery modes where the internal flash drive is not operational.

/altconfig

This directory is located on the router’s hard drive and contains a copy of the /config file structure from the internal flash drive. This directory is also used in certain disaster recovery modes when the internal flash drive is not operational.


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