Tess is a post from: Hapus Website

Encryption is the process of converting a plaintext message into ciphertext which can be decoded back into the original message. An encryption algorithm along with a key is used in the encryption and decryption of data. There are several types of data encryptions which form the basis of network security. Encryption schemes are based on block or stream ciphers.

The type and length of the keys utilized depend upon the encryption algorithm and the amount of security needed. In conventional symmetric encryption a single key is used. With this key, the sender can encrypt a message and a recipient can decrypt the message but the security of the key becomes problematic. In asymmetric encryption, the encryption key and the decryption key are different. One is a public key by which the sender can encrypt the message and the other is a private key by which a recipient can decrypt the message.

Algorithm Encryption

1. AES
2. Serpent
3. Twofish
4. AES-Twofish
5. AES-Twofish-Serpent
6. Serpent-AES
7. Serpent-Twofish-AES
8. twofish-Serpent

see you in next article

source

• http://www.networksorcery.com
• http://www.truecrypt.org/

Wwhat is Encryption is a post from: Hapus Website

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I get error message in Screen show like this :

“Fault Code 010 – 327 “

That problem because heat sensor inside machine error.

Can be happen because :

- Dust and anything make heat sensor not working properly

- Hot sensor broken

In Xerox Copy Machine series 286 have own protector for overheat .

Don’t panic we can doing repair it.

Here the step :

1. Push 0 button more than 1 minute and push start buton in one time.

2. then screen will be show password ( in my place password is 6789)

3.The screen non in maintenance mode ( the light of screen more dark than ussually)

4.Go to menu System Setting then common then Diagnostic then NVRM/diagnostic mode

5.When show Chain-Link function input this value :

– Chain 744

– Link 220

– Value 0

6. Then confirm and close

7. Machine will be automactly restart

and now copy machine will be in the normal mode .

If this fault code always show many time, that mean you must check your heat sensor in copy machine and need the cleanup and repair.

Ok that its tips i want show ….

Fault Code 010-327 Xerox Document Center is a post from: Hapus Website

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Hello world! is a post from: Hapus Website

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My Oldest Openbsd machine running DHCP server , Smokeping Graph ( Monitoring latency ) , MRTG (Multi Router Traffic Grapher) also SQUID ( proxy Cache ) Apache ( default installed come with openbsd ).

Basicly i must make sure my new machine working with squid and compatibel with my latest squid configuration ( exsample: No Facebook & Youtube on working hour ).

After finish install squid ( if you have problem install application on openbsd you follow in here )

If you have squid and want monitoring they was a great tool to do that , is call Cachemgr.

At Cachemgr will be show you healthy Squid so i configure squid to use it only 2 options must be activate.

cachemgr_pass your_password all

cache_mgr you_name_user

dont forget to squid -z [create swap disk) before runing squid.

You copy cachemgr.cgi from /usr/local/libexec/cachemgr.cgi to /var/www/cgi-bin/

and make newfiles cachemgr.conf put in /etc/

Ussually when monitoring your healthy squid using cachemgr.cgi you must activated your webserver then you can access in

http://ipyoursquidserver/cgi-bin/cachemgr.cgi

if you can’t access it and show error message internal error and you findout in apache error log like this :

error log from webserver “Premature end of script headers: /cgi-bin/cachemgr.cgi “

that show your cachemgr.cgi need to be check , as we know default webserver(apache) on openbsd running in chroot enviroment so when we installed script or application need more threatmen.

here to resolv it .

#ldd /usr/local/libexec/cachemgr.cgi
/usr/local/libexec/cachemgr.cgi:
Start End Type Open Ref GrpRef Name
1c000000 3c00e000 exe 1 0 0 /usr/local/libexec/cachemgr.cgi
0f554000 2f55c000 rlib 0 1 0 /usr/lib/libm.so.5.2
0c7b1000 2c7ba000 rlib 0 1 0 /usr/lib/libpthread.so.13.1
00084000 200b8000 rlib 0 1 0 /usr/lib/libc.so.58.0
0752a000 0752a000 rtld 0 1 0 /usr/libexec/ld.so

That show library file need to running cachemgr.cgi so you must copy it to chroot.

#mkdir -p /var/www/usr/lib/

#mkdir -p /var/www/usr/libexec

#cp /usr/lib/libm.so.5.2 /var/www/usr/lib/

#cp /usr/lib/libpthread.so.13.1 /var/www/usr/lib/

#cp /usr/lib/libc.so.58.0 /var/www/usr/lib/

#cp /usr/libexec/ld.so /var/www/usr/libexec/

and try againt …. you will show login page

and that it for to day have a nice day

Premature end of script headers: /cgi-bin/cachemgr.cgi is a post from: Hapus Website

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