Al Went to this event – can you spot him!
Docker networking Video Series
What Jerry recommend as offsite backup: Crash Plan
TrueCrypt
Rackspace Lon5
Jerry WordPress X-Addon Plugin issue
Geekster Podcast
Podnuts Pro Podcast
Vim cheatsheat
IR35

Why would you?

“Employer”

• As a contractor, you work for your own company who supplies services to the company you’re working for. They don’t have to pay for holidays/national insurance/pension, etc.
• They take no risk – you often have to take out insurance as a contractor

“Employee”

• The money is much better
• “Tax efficiency”. Pay yourself a nominal salary that keeps you under the PAYE threshold
• Pay yourself dividends, which are only subject to corporation tax
• Pay VAT as a lump sum to HMRC on profits only – can claim it back on any business expenses
• Business expenses also eat into profits, but lower profits mean a lower overall tax bill

All the best,

Al Been HPE event and learnt about Docker
Andy been having fun with Till Printers and Built Linux server running plex
Jerry has a new job!

VMs vs Docker

Docker Links:

• Al Demoing Docker
• Brilliant Docker Tutorial
• Docker on windows
• Microsoft Guide to install docker on Windows 2016
• Bryan Cantrill talk (History of containers, etc.)
• Docker and rkt
• Demystifying Docker
• Cgroups, namespaces, and beyond: what are containers made from?
• Thinking in Containers: Building a Scalable, Next-Gen Application with Docker on Azure
• Docker at Spotify
• Unable to Start Docker Service on Windows 2016 TP5

Digital Ocean Status Twitter Account 

BBC Programme Jerry was talking about in EP45 – Thanks David

Al

• Run “gpresult /h res.htm && res.htm” to Get a list of group policy applied to a user and computer in a html Document
• Capture a Network Trace without installing anything
• AutoMySQLBackup
• Papertrial App
• How to forward roots mail to a another user in freebsd
• BSD Synergy Freebsd youtube

Andy

• Fourtran
• C:\windows\windowsupdate.log – Location of windows update log
• BBC programme that was about Fortran

Jerry

• Jerry is looking for another job! “Devops” means “sysadmin”, but you can ask for more money 🙂
• Decoupling mysql from web+db+mail server for performance reasons
  • Set up the new server
  • Move the data over
  • Reconfigure sites to point to new DB location
• Migrating gitlab to a new server – Upgrade to latest version first before dumping out backup *.tar file
• Ansible galaxy – other peoples’ roles
• Made a Debian package with checkinstall – it’s really easy!
• Finally finished installing the Icinga POC (I think)

Al,

• WordPress on windows

Andy

• Exact  Dental Software migration,
• Office 365 migration
• TTL

Jerry

• Imap copy -Man page???
• Issue with SSL – https://www.sslshopper.com/article-most-common-openssl-commands.html
• Lamp server in anssiable, do you have source code for this?

VVS writers Checklist

Script FTP and FTP synchronizer

Find Saved Password in Windows 10

Reval internet connection tab

Upgrading PHP

Error establishing database connection

After:

Upgraded PHP 5.3 -> 5.6
Upgraded mysql 5.0 -> 5.5

Finally found the solution:

stack overflow:

SET PASSWORD FOR ‘username’@’host’ = PASSWORD(‘the password’)

old_passwords = no

Spot AWS???

Microsoft Breaks GPOs

• MS16-072
• https://blogs.technet.microsoft.com/askpfeplat/2016/07/05/who-broke-my-user-gpos/

Al, Andy and Jerry’s Linux Tips

• htop
• vim
  • Learn to love the Vim text editor
  • Vim-adventures.com
• Edit network setting in Ubuntu server
• vsftpd
• samba
• crontab in plain English
• rsync
• rsnaphot
• Add new disk in linux
• Other useful commands:
  • cat
  • less
  • cp
• Jerry’s Github account

OpenSSL

• List of openssl comands
• Export Windows IIS SSL Certificate to import into Apache on Linux  

WordPress on Windows box

http://documentarybox.com/foolish-tech-show-1606-27-random-recent-news/

Al being dealing with:

• Firewall dying and Broadband telephone number getting mixed up 
• Install EFM at site
• Dealing SMTP servers 
  • Check if a Host is being block to sending email to office 365: http://Sender.office.com
  • Test SMTP Program
  • Setup IIS as a SMTP relay to Office 365
• Using ssh through a bastion host transparently
• Fixing “WARNING: UNPROTECTED PRIVATE KEY FILE!” on Linux

Andy been dealing with printers again. Never10 and Windows 10 auto installing and GWX Control Panel

Jerry has been learning  more python, Dictionary and Lists? Git and branch. Private work migrate VMs and Nagios and Icinga

Al has been playing with RMM Products and dealing with network loops again.
Andy has been fixing gaming PCs and it always good to carry some spare terminal paste
Jerry has been learning Python with “automate the boring stuff“

Synsolgy ds716+ is the NAS Al used on a client site with btrfs and Snapshot replication to second Synsolgy NAS

Ansible on Windows talk

Icinga2 is the monitoring platform Jerry is using to replace nagios.

Rclone for remote backup to dropbox (and other services) 

Al Monitoring Software:

• Prtg
• ntop and ntopng

Command to find files over 200mb in the users folder

“forfiles /P C:\users /M *.* /S /C “cmd /c if @fsize gtr 209715200 echo @path @fsize @fdate @ftime”

handle.exe to find which file is open

Process explorer 

Net Command:

Unlock domain account on a DC:

Net user accountname /DOMAIN /active:YES

Add Local User:

net user accountname

List users in the administrator Group:

net localgroup administrators

Remove domain users from a local group:

net localgroup administrators domainname\accoutname /delete

Al been on Office365 Course:Managing Office 365 Identities and Services

Andy been fixing printers at a play house with netscan, problem with routers and arp tables.

Jerry been talking abot “cattle v pet” model and Immutable infrastructure

Windows PowerShell, there are two types of quotes ‘single speech marks’ and “double speech”

Paper Trail log monitoring

Agile user story

Stop DDOS on website

• http://www.mkyong.com/linux/how-to-block-attackers-ip-with-null-route-command/
• https://bloke.org/apache/limit-apache-requests-per-ip-address-with-mod_limitipconn/

Send email with you AD password going to expiry:

Scrapyard wars 

Postgres – psql – extensions to postgres – http://railsware.com/blog/2012/04/23/postgresql-most-useful-extensions/

A Table which compares Raid:

Al Has been:

• replaced a disk in RAID 10 array
• Been looking at AD acounts locks out using this software
• Ways to find out who has logon on to what PC, BATCH or Powershell

Jerry Went to Ansiblefest in London and learnt:

• New stuff for networking (Cisco, Junos, etc.)
• Met loads of geeks and some Ansible developers!

Andy been

Dealing with other tradesman
Trouble with customers not paying ISP bill
Play with the SC command

Sender Policy Framework

A example SPF Records:
example.com. IN TXT “v=spf1 ip4:192.0.2.0/24 ip4:198.51.100.123 a -all”

• spfwizard.net – create you a SPF record
• http://www.openspf.org/SPF_Record_Syntax – Good Resource

DomainKeys Identified Mail

How it works

The new podcast Al has found Root Access Podcast and the Belkin Stride360° Messenger Bag he mention 

• Al been playing with powershell to automate things and he loving it!
• Andy has been playing with Linux on old hardware and listen this episode of Linux Luddites about ReactOS
• Jerry has been looking at rolling out Ansible to manage his servers at work

Al Script to create AD accounts

How to Connect to office365 via powershell

Scripts to assign a license office 365

Google dig tool

Al used “netstats – a” to find what IP address was listening on port 25

Allow external reply in Exchange 2010

profwiz  Tool to migrate local user profiles to a Domain Profile

Links to Promise Guide to Raid

The Expanse – SCI-FI Show Jerry Was talking about

Al been learning by mistakes, Always check your hardware and Dealing with ilo4 and Datto Device

Jerry has been clone daughter laptop and received the following Error Message:??????

Andy dealing with Secure boot and EFI bios, Trinity Rescue Disk Trinity

We discuses Raid this week:

Different between software and Hardware Raid

Mdadm is Linux Software RAID management tool

Raid 0 – Which has no redundancy require more than two disk. So data normally is split of blocks of 64k, the first block is written to disk 1 and section written to disk 1 and then third data written 1st disk and so. Used to create large disk volumes and is fast writing to disks.So if you are write 100mb data each drive is write 50mb at once compare 1 drive writing a 100mb. So twice as fast and reads twice as fast as both disk can find the data which is being requested. Also no storage space lost.

Raid 1 –  Require two disk same size. Each block of data is written to both drive. You lose half storage (so if you have 2 x 1TB disk you get 1TB virtual disk). Their is Hit of write speed as both disk need to confirm that data has been written to both disk, You may get a bit fast read speed as you have two heads seeking for data. You can tolrate one disk failing,

Raid 5 – mean you can get greater storage, but you always lose one disk for parity so let say you have 4 disk in array, 4 x 1TB your storage space you would get would be 3TB. Parity  is a equation, called exclusive xor. Let think of easiy way of doing, so data written on disk 1 is 2, Data on disk 2 = 4 and data on disk 3 = 5, So the parity is would be those number add together 11 and written to the 4 disk.  so if we ever lost of drive (1-3) we could work out the value ie if we lost disk, using the parity of 11, we could subtract the other value on disk 2 and 3 so 11 – 4 – 5 = 2. The data which was store on disk 1. So if you had a disk failure and request that data the raid controller can restructure your data and present in to you in degrade mode. This would be slower as the controller would need to do this every time you request data.

The parity is not store on one disk, so first it would store data a on disk 1 and data b on disk 2 and data c on disk 3. Parity on disk 4. next time the data a could be written on disk 2 and data b is written on disk 3 and data c on disk 4 and parity on disk 1 and so so.

RAID 6 – Is the same as RAID 5 but you have two disk for Parity. You need a minimum of 4 disks,

http://blog.open-e.com/how-does-raid-5-work/

36 is the atomic number of krypton and in binary it is 100100 and 36 UK gallons in a Beer barrel

Andy been dealing with a customer who built a computer incorrectly and having issue with powerline

Jerry also has been have issues with powerline and using DD to clone a laptop and playing btrfs,containers and a new pyhiscal server

Al been play with cloud based marcoine wifi unit

Al Every Day Carry:

The bag Al wants: TImbuk2 Messenger Bag

EDC

Maxpedition Pocket Organizer (Bit like a pencil case) (Pic in show notes)
Small notepad
Biro
Fat / Thin Sharpie (Permanent marker)
LED Lenser P3 Tourch (single AA)
Mechanical Pencil
HP Server Allen Key
USB keys:
* Latest HP SPP (Service Pack For Proliant)
* Ubnuntu Mate Live CD
* Blank 8GB USB Disk
Letheman Skeletool
Belkin Precision Flat head / Phillips Screwdriver
ibuprofen

In my bag

Always Notepad A4/A5
Draytek Screw Driver
1TB 2.5 HD in a removeable USB HD caddy
HP Usb mouse
Cheap CAT5 Cable Tester
1 x 2M straight through cat 5 Cable connected to a 2 meter crossover cable with cat5 coupler. USB serial Connecter with 3 cable now cisco cable which can be used on HP/Cisco switch – DB9 to Cat5, and two type od DB9 either end for older cisco switches and APC UPS.
Roll of velcro.
Al Laptop:  HP ProBook 650 G1 Laptop

Jerry EDC

Philips screwdriver
Needlenose pliers
Leatherman
Socket set (rack rails, etc.)
USB-Serial cable
Cable ties/roll of velcro (usually scrounged off network engineers 🙂
Network cable
Live USB key

Andy EDC

2 bags and Box in the Car

Bag One:
CDs, (Various windows OS, trinity, ubuntu live,)
screwdrivers.
Usb pens (Clean up tools. Ccleaner, JRT, ADW Cleaner, various scripts),
usb hard drive
iso images incase i need to burn a disk/

Bag Two:
Ethernet tester.
RJ45 plugs,
Crimping tool for it.
Mouse

Box in car.
Power supply, keyboard, Switchs, ADSL Router

Andy Software List

Lan Speed Test
Crystal Disk Portable Personal
Revo uninstall
Nirsot
Portable Browers

Jerry Software List

SSH client/Terminal
Git/github
Terraform
Ansible
Rsync

Al Software List

MSTSC / mRemoteNG
Zenmap
Ping / Tracert
Putty (SSH/Telnet Client)
Outlook and Chrome
Password Reset tool 
iPerf