Und noch eine...

Ich habe direkt noch eine MCP Prüfung hinterher geschoben und bin jetzt auch Microsoft Certified Technology Specialist für Windows Communication Foundation. :)

Neue MCP Zertifizierung

Vergangene Woche habe ich meine Prüfung zum Microsoft Certified Professional Developer für ASP.NET 3.5 geschafft. Jetzt darf ich mir ein weiteres Logo überall draufpappen:

Yeah!

Partitionstabelle clonen

Damit ich das nicht wieder vergesse:

sfdisk -d /dev/sda > layout_sda
sfdisk /dev/sdb < layout_sda

Nützliche Webseiten

Wenn man an einem Nameserver oder Mailserver schraubt, kommt man oft in die Situation testen zu müssen wie es denn von "aussen" aussieht. Hierzu ein paar nützliche Seiten:

• IPTools.com: Verschiedene Möglichkeiten Routen, Domains, etc. zu testen
• intoDNS: Verschiedene Tests für Nameserver
• DNSsy: Prüft ähnlich wie intoDNS verschiedene Einstellungen von Nameservern
• MXToolbox: Verschiedene Tests für Mailserver
• Open Relay Test: Prüft auf verschiedene Arten ob ein Mailserver Mails von/für beliebige Adressen annimmt.

Running an o2 Prepaid SurfStick under Gentoo Linux

Here is a quick guide on how to get the o2 Prepaid Surfstick running under Gentoo Linux (or other distros).

To get the modem running, you need a few kernel settings:

Device Drivers  --->
	[*] Network device support  --->
		<*>   PPP (point-to-point protocol) support
		[*]     PPP filtering
		<*>     PPP support for async serial ports
		<*>     PPP support for sync tty ports
		<*>     PPP Deflate compression 
		<*>     PPP BSD-Compress compression
	[*] USB support  --->
		<*>   USB Serial Converter support  --->
			[*]   USB Serial Console device support 
			<*>   USB driver for GSM and CDMA modems

When plugging in, the stick shows up in dmesg with its USB memory or MicroSD card memory:

[ 1967.469023] usb 1-1.5: udev 8, busnum 1, minor = 7
[ 1967.469028] usb 1-1.5: New USB device found, idVendor=19d2, idProduct=0117
[ 1967.469032] usb 1-1.5: New USB device strings: Mfr=3, Product=2, SerialNumber=4
[ 1967.469036] usb 1-1.5: Product: ZTE WCDMA Technologies MSM
[ 1967.469039] usb 1-1.5: Manufacturer: ZTE,Incorporated
....
[ 1968.474145] scsi 13:0:0:0: Direct-Access     ZTE      MMC Storage      2.31 PQ: 0 ANSI: 2
[ 1968.474467] sd 13:0:0:0: Attached scsi generic sg4 type 0
[ 1968.477376] sd 13:0:0:0: [sde] 121088 512-byte logical blocks: (61.9 MB/59.1 MiB)
[ 1968.478128] sd 13:0:0:0: [sde] Write Protect is off
[ 1968.478134] sd 13:0:0:0: [sde] Mode Sense: 0f 0e 00 00
[ 1968.478138] sd 13:0:0:0: [sde] Assuming drive cache: write through
[ 1968.480956] sd 13:0:0:0: [sde] Assuming drive cache: write through
[ 1968.480963]  sde: sde1
[ 1968.486096] sd 13:0:0:0: [sde] Assuming drive cache: write through
[ 1968.486102] sd 13:0:0:0: [sde] Attached SCSI removable disk

To "see" the modem, you have to issue an usb_modeswitch (sys-apps/usb_modeswitch) command:

usb_modeswitch -R -W -v <VendorID> -p <ProductID>

You can find the vendor and product id in the dmesg output. After executing the usb_modeswitch command, udev creates some the modem devices (/dev/ttyUSB*). The device names may differ if you have other serial hardware in use.

I use net-dialup/wvdial to create a session to my provider o2 (which in turn uses net-dialup/ppp to create a ppp tunnel). After emerging wvdial use wvdialconf to create a stub configuration for wvdial. Now, edit the /etc/wvdial.conf:

[Dialer o2]
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
Modem Type = Analog Modem
ISDN = 0
Username = surf02
Init1 = ATZ
Password = surf02
Modem = /dev/ttyUSB0
Baud = 460800
Carrier Check = No
Stupid Mode = 1
Phone = *99#

[Dialer pin]
Modem = /dev/ttyUSB0
Init3 = AT+CPIN=1234

Don't forget to change the pin in the [Dialoer pin] section.

Now, start the connection with wvdial pin followed by wvdial o2.

See http://documentation.dbernhardt.com/surfstick/article.html for a more verbose guide on how to setup the stick on gentoo linux.