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Linux

linux Linux (centos / debian) notes

Soft Ether VPN Notes

To diable vpnserver from calling home, i.e. stop all the chit-chat for nat traversal and just use it as a normal vpnserver.

Step 1 dissable DDNS change the config file DDNS section to read:

declare DDnsClient { bool Disabled true }

Step 2 dissable UDP acceleration I did this from the config file by setting:

bool DisableUdpAcceleration true

Step 3, Disable Nat Traversal In the config file change the following setting.

bool DisableNatTraversal true

Step 4, turn off keep alive. This is via the GUI on the server encryption and network button.

Step 5, turn of auto update check. Again this is via the GUI on the server encryption and network button.

Having done the above (thanks to dnobori, for the ones I missed) and restarted the server, I know don't see any outbound / unexpected traffic.

Virtualization

virt All sorts on virtualization, Xen etc

Mac OSX

mac Mac related notes

Vodaphone useful numbers

vodafone Vodafone numbers

Apps and software

• software Applications notes (mostly web based apps, notes on configuring building apache,php,openssl etc)
• unreal Unreal tournament
• bitsBits and pieces
• asterisk Asterisk notes
• mwiki MediaWiki bits and bobs
• dovecot Things about dovecot and postfix
• Docmgr Installation notes

DNS

DNS related Notes on dns, mostly out of date

Mac DNS Mac DNS flush cache

Windows

To enable telnet

    Start
    Control Panel
    Programs And Features
    Turn Windows features on or off
    Check Telnet Client

Building Windows to go notes

partition disk.

Command Prompt with administrative rights

diskpart, (if you have already used the drive letters suggested below choose a different one and substitute it in the commands.)

List the available disks by running "list disk" and you should see your usb device.

Select your USB drive by typing "select disk #" and hit Enter. For example, “select disk 1”.

Clean the partitions on the disk by typing "clean" and hit Enter.

Now create the boot partition by running the following command:

create partition primary size=350
Now create the OS partition by running the following command to create a partition taking up all remaining space:

create partition primary
The boot partition needs to be formatted, configured and assigned a drive letter, run the following commands:

select partition 1
format fs=fat32 quick
active
assign letter=b

(if the b drive letter is already in use on your PC, substitute a different letter and replace b with your letter
throughout the rest of this guide)

The same must be done for the OS partition, run the following different commands:

select partition 2
format fs=ntfs quick
assign letter=o

(if the o drive letter is already in use on your PC, substitute a different letter and replace o with
your letter throughout the rest of this guide)
Exit Diskpart by typing Exit.

Extract wim file.

(from the windows 8/8.1 install media) sources directory.

dism /apply-image /imagefile:c:\path\install.wim /index:1 /applydir:o:\

add drivers (optional)

dism /image:u:\ /add-driver /driver:*BootCamp Directory*\Drivers /recurse

make bootable

o:\windows\system32\bcdboot o:\windows /f ALL /s b:

Product keys from Microsoft's web site

office:
Office 2013 Professional Plus
YC7DK-G2NP3-2QQC3-J6H88-GVGXT
Office 2013 Standard
KBKQT-2NMXY-JJWGP-M62JB-92CD4
Project 2013 Professional
FN8TT-7WMH6-2D4X9-M337T-2342K
Project 2013 Standard
6NTH3-CW976-3G3Y2-JK3TX-8QHTT
Visio 2013 Professional
C2FG9-N6J68-H8BTJ-BW3QX-RM3B3
Visio 2013 Standard
J484Y-4NKBF-W2HMG-DBMJC-PGWR7
Access 2013
NG2JY-H4JBT-HQXYP-78QH9-4JM2D
Excel 2013
VGPNG-Y7HQW-9RHP7-TKPV3-BG7GB
InfoPath 2013
DKT8B-N7VXH-D963P-Q4PHY-F8894
Lync 2013
2MG3G-3BNTT-3MFW9-KDQW3-TCK7R
OneNote 2013
TGN6P-8MMBC-37P2F-XHXXK-P34VW
Outlook 2013
QPN8Q-BJBTJ-334K3-93TGY-2PMBT
PowerPoint 2013
4NT99-8RJFH-Q2VDH-KYG2C-4RD4F
Publisher 2013
PN2WF-29XG2-T9HJ7-JQPJR-FCXK4
Word 2013
6Q7VD-NX8JD-WJ2VH-88V73-4GBJ7
Windows:
Windows 8.1 Professional
GCRJD-8NW9H-F2CDX-CCM8D-9D6T9
Windows 8.1 Professional N
HMCNV-VVBFX-7HMBH-CTY9B-B4FXY
Windows 8.1 Enterprise
MHF9N-XY6XB-WVXMC-BTDCT-MKKG7
Windows 8.1 Enterprise N
TT4HM-HN7YT-62K67-RGRQJ-JFFXW
Windows Server 2012 R2 Server Standard
D2N9P-3P6X9-2R39C-7RTCD-MDVJX
Windows Server 2012 R2 Datacenter
W3GGN-FT8W3-Y4M27-J84CP-Q3VJ9
Windows Server 2012 R2 Essentials
KNC87-3J2TX-XB4WP-VCPJV-M4FWM
More Windows:
Windows 8 Professional
NG4HW-VH26C-733KW-K6F98-J8CK4
Windows 8 Professional N
XCVCF-2NXM9-723PB-MHCB7-2RYQQ
Windows 8 Enterprise
32JNW-9KQ84-P47T8-D8GGY-CWCK7
Windows 8 Enterprise N
JMNMF-RHW7P-DMY6X-RF3DR-X2BQT
Windows Server 2012
BN3D2-R7TKB-3YPBD-8DRP2-27GG4
Windows Server 2012 N
8N2M2-HWPGY-7PGT9-HGDD8-GVGGY
Windows Server 2012 Single Language
2WN2H-YGCQR-KFX6K-CD6TF-84YXQ
Windows Server 2012 Country Specific
4K36P-JN4VD-GDC6V-KDT89-DYFKP
Windows Server 2012 Server Standard
XC9B7-NBPP2-83J2H-RHMBY-92BT4
Windows Server 2012 MultiPoint Standard
HM7DN-YVMH3-46JC3-XYTG7-CYQJJ
Windows Server 2012 MultiPoint Premium
XNH6W-2V9GX-RGJ4K-Y8X6F-QGJ2G
Windows Server 2012 Datacenter
48HP8-DN98B-MYWDG-T2DCC-8W83P
Older versions:
Windows 7 Professional
FJ82H-XT6CR-J8D7P-XQJJ2-GPDD4
Windows 7 Professional N
MRPKT-YTG23-K7D7T-X2JMM-QY7MG
Windows 7 Professional E
W82YF-2Q76Y-63HXB-FGJG9-GF7QX
Windows 7 Enterprise
33PXH-7Y6KF-2VJC9-XBBR8-HVTHH
Windows 7 Enterprise N
YDRBP-3D83W-TY26F-D46B2-XCKRJ
Windows 7 Enterprise E
C29WB-22CC8-VJ326-GHFJW-H9DH4
Windows Server 2008 R2 Web
6TPJF-RBVHG-WBW2R-86QPH-6RTM4
Windows Server 2008 R2 HPC edition
TT8MH-CG224-D3D7Q-498W2-9QCTX
Windows Server 2008 R2 Standard
YC6KT-GKW9T-YTKYR-T4X34-R7VHC
Windows Server 2008 R2 Enterprise
489J6-VHDMP-X63PK-3K798-CPX3Y
Windows Server 2008 R2 Datacenter
74YFP-3QFB3-KQT8W-PMXWJ-7M648
Windows Server 2008 R2 for Itanium-based Systems
GT63C-RJFQ3-4GMB6-BRFB9-CB83V
Still even older ones:
Windows Vista Business
YFKBB-PQJJV-G996G-VWGXY-2V3X8
Windows Vista Business N
HMBQG-8H2RH-C77VX-27R82-VMQBT
Windows Vista Enterprise
VKK3X-68KWM-X2YGT-QR4M6-4BWMV
Windows Vista Enterprise N
VTC42-BM838-43QHV-84HX6-XJXKV
Windows Web Server 2008
WYR28-R7TFJ-3X2YQ-YCY4H-M249D
Windows Server 2008 Standard
TM24T-X9RMF-VWXK6-X8JC9-BFGM2
Windows Server 2008 Standard without Hyper-V
W7VD6-7JFBR-RX26B-YKQ3Y-6FFFJ
Windows Server 2008 Enterprise
YQGMW-MPWTJ-34KDK-48M3W-X4Q6V
Windows Server 2008 Enterprise without Hyper-V
39BXF-X8Q23-P2WWT-38T2F-G3FPG
Windows Server 2008 HPC
RCTX3-KWVHP-BR6TB-RB6DM-6X7HP
Windows Server 2008 Datacenter
7M67G-PC374-GR742-YH8V4-TCBY3
Windows Server 2008 Datacenter without Hyper-V
22XQ2-VRXRG-P8D42-K34TD-G3QQC
Windows Server 2008 for Itanium-Based Systems
4DWFP-JF3DJ-B7DTH-78FJB-PDRHK

Certificates

Check key / cert are mached (also csr )

checking the modulus and the public exponent portions in the key and the Certificate must match.

But since the public exponent is usually 65537 and it's bothering comparing long modulus you can use the following approach:

$ openssl x509 -noout -modulus -in server.crt | openssl md5
$ openssl rsa -noout -modulus -in server.key | openssl md5

And then compare these really shorter numbers.

if I want to check to which key or certificate a particular CSR belongs you can compute

$ openssl req -noout -modulus -in server.csr | openssl md5

Electronics Related

Microphone pre-amp for apple mac

This simple circuit was built on vero board in a matter of 40 mins. Not pretty but it was made of mostly second hand bits, infact two of the resistors bellow where from a PC board from a 1980's computer!