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

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

Alister had a issue with a old Dell Server with a disk failing, these are the error Al was getting in the event viewer:

There was an unrecoverable disk media error during the rebuild or recovery operation: Physical Disk 0:1 Controller 0, Connector 0

Sense key: 3 Sense code: 11 Sense qualifier: 0: Physical Disk 0:1

Link to SCSI sense Key Codes

Openmanage is the tool to look at the hardware status of Dell servers, can be installed on Windows, Linux and VMware

Andy ask how to Setup email alert on a NAS if a disk fails

Andy issue with virtual box is fixed updating to latest version and has a question about port forwarding,  Portward.com has some good guide to set-up forwarding (but just avoid the ads on the websites)

Jerry has been getting to grips with his new job and Cloud config AWS

Links about Should I remove exchange onsite after migrating to Office365

Caution: Decommissioning Exchange can have unintended consequences. Before decommissioning your on-premises Exchange organization, we recommend that you contact Microsoft Support

Great email we got from one of our listeners:

Thank you very much for your excellent podcasts.

A few shows ago, I think that Al said something about wanting to improve his writing style. I have not knowingly read any of his writing and I am not sure what the issue is precisely (and I have no expertise in this area). I think that he (like Andy and Jerry too) speaks very clearly and coherently and he is clearly knowledgeable and enthusiastic and so gives his audience a very enjoyable listening experience. My tips for anybody wishing to improve their writing (for what they are worth) are:

1. Try to regularly read examples of the types of writing you admire and enjoy reading.

2. Use spell checking software and perhaps also grammar checking software (though that can sometimes be too pedantic, especially if, like me, you were brought up during the time when grammar was hardly taught at school and so you, like me, know little more than what verbs, nouns, adjectives and adverbs are and so cannot really understand the error messages of the grammar checker).

3. Read a guide to clear writing style. (Try to avoid anything that sounds too pedantic unless you enjoy that.)

4. Avoid trying to be too clever and instead just write as you would speak to your audience. (Some people try to write using business jargon in an attempt to sound good, but it can often just hinder effective communication.)

5. Consider using speech-to-text dictation software if you find that it is the process of typing that is causing the issue.

6. Read back aloud what you have written to see whether it sounds all right. It is often useful to use speech-to-text software to help with this, because it is very easy just to read what we think we have written rather than what we have actually written. For example, in Microsoft Windows, you could try Microsoft Narrator, since it is built in (or download a more fully featured screen reader such as NVDA, which is free and open source software), on an Apple product you can use Voice Over, which is built in, and in GNU/Linux, you can use Orca or Speakup. If you do not like the Default voice, try others.

7. If you have a friend whose writing style you admire and enjoy, you could ask him or her for feedback on your writing.

I hope that this helps. Thank you again for a great podcast.

We finally got to meet at Oggcamp 2015:

Al Has been having fun with a Windows cluster not starting

• http://blogs.technet.com/b/askcore/archive/2009/04/15/windows-2008-failover-cluster-validation-fails-on-validate-scsi-3-persistent-reservation.aspx
• http://blog.patricknielsen.net/2010/06/cluster-disk-with-identifier-has.html

Jerry has a new job and been doing the following Stuff:

• Crash course in AWS
• Terraform – A way of coding an AWS (or other provider) configuration.
• Tweaking vim
  –Nerd Tree
  –Vim plugins
  -Learning keyboard shortcuts(!)
• Got a Mac! The keys are in different places …

Andy been given a Dell poweredge 6650 and playing with freenas

Jon ‘The Nice Guy’ Spriggs, Oggcamp hero tells us about a dd alternative : dcfldd. Jerry agrees it is indeed an improvment over the standard dd command.

Jerry’s rucksack, in case anyone is interested 🙂

Photos from Andy Latest Job:

33 is the atomic number of arsenic

Jerry has a new job and been looking at Sensu, a new monitoring system.
Also, a really good talk by Andy Sykes, on Stop using Nagios let it die peacefully – Talk

Al went to UCDay. Exchange 2016 does not support Exchange 2007 in coexisting deployment and Office 2016 does not connect to mailbox hosted on a exchange 2007 server.

Exchange Pro Podcast – The new Podcast about exchange Al has found about.

Andy has been battling with printers again and ask about LPR and SNMP, HPR episode – Turning an old printer into a network printer.

Andy error message he getting in virtual box:

Failed to open a session for the virtual machine
Failed to load VMMR0.r0 (VERR_LDR_MISMATCH_NATIVE).
Result Code:
E_FAIL (0x80004005)
Component:
Console
Interface:
IConsole {8ab7c520-2442-4b66-8d74-4ff1e195d2b6}

The Admin Admin Logo andy was talking about:

A Listener emails in ask how we recommend getting in the IT industry, Jerry recommends do some freelancing,getting VPS and do some on line training (lynda.com, ITpro.tv and CBT Nuggets). Al recommends picking a topic and researching on Youtube.  Use GSN3 if you want to learn Cisco network,

The picture of the shared comms room was working in:

How to back IOS image on a cisco router using TFTPD32

Al has issue with expanding datastores in vmware (need find link)

Al ask jerry what Tmux is?

Pigeon Racing

32°F is the Freezing point of water

Al has a new small HP 2530p laptop which has decided on Manjaro as his chosen Linux distro
notepadqq is the linux verison of notepad++ for window.
The Command Al ran to fix his issue with the wifi not be enabled at start up:

"echo "blacklist hp_wmi" > /etc/modprobe.d/hp.conf" 

Andy fixed his issue with WordPress by replacing the broken *.php file. Also: dealing with SSD cloning and the strange case of the PC-breaking desk

Jerry is:
• moving into “devops” (whatever that means)
• Has a new client with 12 servers and no control panels(!) on Linode
• Dealing with more server backups
• Looking at gitlab
• Moving Nagios/Centreon into AWS

Andy ask how he can Scheduling task to do thing automatically.

• Windows task scheduling or the AT command.
• The cron job for linux
• Logwatch – Send daily reports of the logs on your Linux server via email
• AutoMySQLBackup – Auto backup your mysql backup daily.
• Jerry’s mysqldump script

Al has been playing with IDS and IPS to proctect a customer network against attacks:

• Intrusion Detection System
• Intrusion Prevention System
• Snort
• Cisco Firepower

• Watch the progress of dd

Using Exchange Server Features to Prevent ‘Reply All’ Email Storms

Radiolab – Darkode – talks about Cryptowall, Russian hackers and DDoS attacks

Cool Youtube Channels:

• “The Scene” 
• Tom Scott’s
• Numberphile 
• Objectivity 
• Colinfurze

Jerry BBC Links:

• Computing in Britain Radio – Podcast/Radio
• The Secret Rules of Modern Living: Algorithms – Marcus Du Sautoy
• Calculating Ada