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  • elguber 18:40 on 1 July 2012 Permalink | Reply
    Tags: FreeBSD, resest password   

    FreeBSD – Reset password 

    Three steps to change root password in FreeBSD:

    Step 1: Boot in single user mode

    As the operating system is starting, it will display the following message:
    Hit [Enter] to boot immediately, or any other key for command prompt.
    Booting [kernel] in 10 seconds…
    You should now press the space bar, and you will see the following message:
    Type ‘?’ for a list of commands, or ‘help’ for more detailed help.
    ok

    1. boot -s

    to start FreeBSD in single user mode. After the system boots, you should see the statement:
    Enter full pathname of shell or RETURN for /bin/sh:
    Press the enter key and you will have a # prompt.

    Step 2: Mount the filesystems

    At the command prompt, issue the mount command. This command will mount all the filesystems listed in your /etc/fstab file.

    1. mount -t ufs -a

    Step 3: Change the root password

    Issue the passwd command and you will be prompted to enter a new password for the root account.

    1. passwd

    New password:_
    Retype new password:_
    passwd: updating the database…
    passwd: done

    1. exit
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  • elguber 17:47 on 18 November 2010 Permalink | Reply
    Tags:   

    Unix directory 

    Lest’s have a look inside the unix directory structure.

    Directory Description
    bin Essential command binaries
    boot Static files of the boot loader
    dev Device files
    etc Host-specific system configuration
    lib Essential shared libraries and kernel modules
    media Mount point for removeable media
    mnt Mount point for mounting a filesystem temporarily
    opt Add-on application software packages
    sbin Essential system binaries
    srv Data for services provided by this system
    tmp Temporary files
    usr Secondary hierarchy
    var Variable data

    The above is the main folder structure, but there are some of those folders that we should check in deep.

    /dev/null This virtual folder discards all contents written to it.
    /usr/bin Stores the executables that are in /usr.
    /usr/lib Required libraries are stored here
    /var/log System log files
    /var/mail All incoming emails are stored
    /var/spool files in which printers are involved as spools, print jobs or other task that have been queued.
     
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