FreeBSD how to set date

FreeBSD Display todays date

Type date command as follows, to display todays date and time:
$ date

Output:

Thu Feb 9 23:43:19 IST 2006

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How To Reset Mac OS X User Password In Recovery Mode

Enter OS X Recovery Mode

To boot into OS X Recovery, the first thing you need to do is to restart your Mac. While restarting, hold down CMD + R until the Apple logo appears. If you time it right, you will enter the recovery mode.

What you need to do next is to go to Utilities > Terminal to open a Terminal. In Terminal, type resetpassword and press Enter.

You will now be presented with the Reset Password window. Next, select your OS X drive. From the drop-down under “Select the user account:”, choose the user account that you want to reset password for.

Type in your new password, re-enter it and try not to forget it this time. You can also choose to write down a hint in the “Enter a new password hint for this user (optional)”, just in case.

Once you’re done, click on Save. You will be prompted with this message saying that your user account password was reset but your keychain is not. Just click OK and close all windows.

Now click the Apple icon at the very top left and choose Restart. You can now enter your account with your new password.

FreeBSD – Install and Configure Webmin Web-based Interface

Webmin is a web-based interface for system administration for Unix including FreeBSD. Using any browser that supports tables and forms, you can setup user accounts, Apache, DNS, file sharing, firewall and so on. Webmin consists of a simple To install webmin, update your ports, enter:

# portsnap fetch update

Install webmin from /usr/ports/sysutils/webmin, enter:

# cd /usr/ports/sysutils/webmin
# make install clean

Configure webmin

Now, webmin is installed. Start webmin on startup, enter:

# vi /etc/rc.conf

Append following line:

webmin_enable="YES"

Save and close the file. You need to run /usr/local/lib/webmin/setup.sh script in order to setup the various config files, enter:

# /usr/local/lib/webmin/setup.sh

Sample output:

***********************************************************************
*            Welcome to the Webmin setup script, version 1.420        *
***********************************************************************
Webmin is a web-based interface that allows Unix-like operating
systems and common Unix services to be easily administered.
Installing Webmin in /usr/local/lib/webmin ...
***********************************************************************
Webmin uses separate directories for configuration files and log files.
Unless you want to run multiple versions of Webmin at the same time
you can just accept the defaults.
Log file directory [/var/log/webmin]: [Press Enter]
***********************************************************************
Webmin is written entirely in Perl. Please enter the full path to the
Perl 5 interpreter on your system.
Full path to perl (default /usr/bin/perl):  [Press Enter]
Testing Perl ...
Perl seems to be installed ok
***********************************************************************
Operating system name:    FreeBSD
Operating system version: 7.0
***********************************************************************
Webmin uses its own password protected web server to provide access
to the administration programs. The setup script needs to know :
 - What port to run the web server on. There must not be another
   web server already using this port.
 - The login name required to access the web server.
 - The password required to access the web server.
 - If the webserver should use SSL (if your system supports it).
 - Whether to start webmin at boot time.
Web server port (default 10000):  [Press Enter]
Login name (default admin):  [Press Enter]
Login password: [type password]
Password again:
Use SSL (y/n): y
***********************************************************************
Creating web server config files..
..done
Creating access control file..
..done
Creating start and stop scripts..
..done
Copying config files..
..done
Changing ownership and permissions ..
..done
Running postinstall scripts ..
..done

How do I view webmin?

Fire a webbrowser and enter url: https://your-domain.com:10000/ OR https://your-server-ip:10000/

How to enable root login over SSH on FreeBSD

Firstly, You will need to edit the SSH daemon configuration file to enable this like so..

vi /etc/ssh/sshd_config

ChallengeResponseAuthentication no
PasswordAuthentication no
UsePAM no
PermitRootLogin yes

Restart SSH daemon

/etc/rc.d/sshd restart

Apache – mod_rewrite rules

Examples to configure rewrite rules in .htaccess file:

http://example.com/page.php

RewriteEngine On
RewriteRule ^demo/?$ /page.php [L,NC]


Rewrite localization url with $_GET[‘lang’] variable
http://example.com/english

RewriteEngine On
RewriteRule ^(.*)/$ /$1 [R=permanent]
RewriteRule ^([a-z]{2})$ /index.php?lang=$1


Redirect 301
http://www.example.com/ to http://example.com/

RewriteEngine On
RewriteCond %{HTTP_HOST} ^www\.example\.com$ [NC]
RewriteRule ^(.*)$ http://example.com/$1 [L,R=301]

Enable spotlight indexing on a AFP network drive

Indexing of an AFP-network drive isn’t a problem:

To enable spotlight indexing on a network drive open Terminal.app and enter:
mdutil /Volumes/name -i on

To disable the indexing of a connected network drive:
mdutil /Volumes/name -i off

To check the status of indexing on a connected network drive:
mdutil /Volumes/name -s
ita
china

OS X Ripristino password Admin

Avvia il Mac in modalità utente singolo tenendo premuti i tasti Command+S (o Mela+S che dir si voglia) finché non compaiono delle scritte sul terminale, digita:

$ fsck -fy 
$ mount -uw /
$ launchctl load /System/Library/LaunchDaemons/com.apple.DirectoryServices.plist
$ dscl . -passwd /Users/username password

nomeutente è il vero nome utente (quello che sarebbe riportato vicino alla “casetta” per intenderci) e password la nuova password che vuoi impostare.
Se non conosci il nome utente di un account amministratore ti basterà digitare more /etc/passwd per visualizzare il file dove sono memorizzati tutti gli utenti presenti nel sistema. Noterai il tipo di privilegio dell’utente nella quinta colonna. Potresti inoltre cambiare direttamente la password dell’utente root (che sui sistemi Unix rappresenta il superuser del sistema e quindi con accesso totale).
Riavvia infine il sistema tenendo premuto il pulsante di accensione