Archive for February, 2010

genkey to generate your own certificates

there are some methods:

1. use openssl such as:
openssl genrsa -out /etc/httpd/conf/ssl.key/ 1024
openssl req -new -key /etc/httpd/conf/ssl.key/ -out /etc/httpd/conf/ssl.csr/
openssl req -new -key /etc/httpd/conf/ssl.key/ -x509 -out /etc/httpd/conf/ssl.crt/ -days 999

2. install crypto-utils
sudo /usr/bin/genkey –days 1024
follow the instruction, very simple, isn’t it ?

Then you can use your own cert for your application such as apache,postfix and so on.

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mount: you must specify the filesystem type

I have one raw file contains system:
$file my.raw
my.raw: x86 boot sector; partition 1: ID=0x83, active, starthead 1, startsector 63, 64259937 sectors; partition 2: ID=0x5, starthead 254, startsector 64260000, 2843505 sectors
$mount -o loop my.raw /mnt
mount: you must specify the filesystem type

$mount -o loop,offset=32256 my.raw /mnt

The number too big for calculations, so set offset here.

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Happy Spring Festival

Enjoy yourself, Have a good Time.

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