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Everything posted by jamesb
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Cheap server room monitoring - temperature etc
jamesb replied to tj2419's topic in How do you do....it?
https://www.cl.cam.ac.uk/projects/raspberrypi/tutorials/temperature/ £35 for the Pi, £5 for the sensor, £5 for the cable. Bit of scripting for alerts. Any use? -
There are USB keys out there which perform encryption purely on the hardware, with no need for any software. They do tend to be a little pricey, but the advantage you get out of it is that they're much more portable since you don't need to install or run anything special on the machine. http://www.apricorn.com/products/hardware-encrypted-drives/aegis-secure-key.html
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- cloud storage
- encrypted usb stick
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Got a card from one of my recruiters at home, which was nice, and came into work today to find a selection box of chocolates from the CEO (everyone got one, but still a nice thought). Feel a lot better now.
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I'd suggest looking at the DNS configuration on each server, and make sure that your misbehaving server can resolve local addresses. Also worth looking at the routes for both to the windowsupdate service. You can use traceroute for this.
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Florian's Blog » GPMC Report error: An appropriate resource file could not be found This seems to suggest it's linked to DNS, and not being able to download updates can point the same way. Can you access the internet at all from that machine? If so, try an nslookup on the Windows Update urls.
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Supposed to make it soft, and also help to avoid dry skin issues that some people (like me) can get. Also smells nice (at least according to the missus) so can be an alternative to aftershave. I even wax mine now and then for special occasions. Don't see any problem whatsoever with a bit of grooming.
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Reverse identify a company by IP?
jamesb replied to howartp's topic in Internet Related/Filtering/Firewall
Not sure whether this is helpful or not, but the address is on the following blacklists: - BARRACUDA - SEM BLACK - SORBS DUHL - SORBS SPAM - Spamhaus ZEN Having looked into it a little more it may well be a residential account with a RIPE address attached. Either way it seems to be compromised in some form and used as an e-mail relay. -
Reverse identify a company by IP?
jamesb replied to howartp's topic in Internet Related/Filtering/Firewall
If it's a personal device, shouldn't you just remove it from the MDM? It's a BT wholesale address which suggests a business. A handful of non-http services running on the address which would imply a company proxy/remote-access solution. If you've got the company names I'd recommend querying the MX records to see if they might match. -
Finish at midday on Christmas Eve, drive over to my parent's for the night, drive up to see the missus' parents on Christmas Day, home on Boxing Day. Cocktails and relaxation over the weekend, then back to work on the 29th.
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Absolutely nothing here. Finish on the 24th...to start again on the 29th.
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Your best bet is to have a base image ready to go - if you restore a backup then it's almost guaranteed that you'll get some confusion in the cluster. They tend to argue over VM ownership if you restore. If they fail you're better off forcing the machine out of the cluster, and building it back in from scratch as a new machine than trying to bring it back to life. If you really do want a backup you may be able to get away with taking the host offline and running a backup with whatever you'd normally use, then bringing it back online. Whatever you do though try to avoid backing up any host while it's running VMs.
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Forcing special characters in users passwords
jamesb replied to speckled's topic in Windows Server 2012
You can do it with password filters: Installing and Registering a Password Filter DLL (Windows) -
No. But I am unusually placid and mild-mannered. Even if someone does say that, would you bellow it aloud in a public place?
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It's actually kind of tempting.
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A good reason not to use any of the always-on voice recognition assistants. Especially when they use cloud-based voice recognition. Actually I think they were right in that case. We've all said that we're going to kill people? I can't think of a time that I've threatened to kill someone or to cause damage to property since I got out of my teenage years, honestly. If someone were to say that they're going to kill me, even if they meant it as a 'joke' you can be damned sure I'd be taking it very, very seriously. Not sure I entirely agree with that. With unlimited resources you could quite comfortably have 100% security. Of course no one would want to live in a world where that was going on (and the definition of living may have to be revised due to security-imposed limits). The problem is that there are diminishing returns. For a small amount of effort you can prevent 9 out of 10 threats. A much, much larger effort will prevent 99 our of 100, and so on. There has to come a time where you accept that the risk is small and therefore acceptable instead of pouring more resources into trying to solve the issue.
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Nah, the XBox One and Amazon Fire TV came out long after 1984.
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I just can't understand how capturing all this data will in any way help to catch people. It's useful for data mining, yes, but in order to mine you need to know what you're looking for. If someone's already under surveillance then they are already under surveillance - having the traffic from 60 million other users doesn't help that surveillance in any way. Or to put it another way, online behaviour is only a facet of someone's behaviour and will often be a small one. Even in IT security people are rarely picked up because of any network monitoring - they're picked up because of other behaviours that reveal their actions and then network monitoring (with full sign-off from legal according to company policies) is instigated to gather evidence. This works just fine. Capturing everyone's data does absolutely nothing to enhance this, and attempts to do so only drive investment in privacy technologies (so I suppose there is one positive effect from it all).
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I tend to use Adblock plus, with whitelisting turned on for non-intrusive adverts. Although it isn't really the adverts that bother me - it's the tracking and profiling.
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If none of the above work you can try and find the service/workstation causing the problem by turning on AD access auditing and tracing back the failed logon events: HOW TO: Audit Active Directory Objects in Windows Server 2003
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Seems only ESXi 5.5 can support it, so you may need to upgrade depending on your current setup.
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This might help: VMware KB: Support for virtual machine disks larger than 2 TB in VMware ESXi 5.5
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No way I can think of to join them to two domains. Can you use DynDNS or something similar to set up a VPN and have a trust? I suppose your other option, and this would be a real bodge, would be to either have them dual-boot or stick a virtual machine on and have each image joined to one of the domains.
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I think the reason is that you can't select the property for a collection using .UserID - that'll only work on individual WinEvent objects. If instead of .UserID you try putting | Select -Property UserID you should get something back.
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All depends on what you're trying to log. You need to be specific about the sort of activity you're trying to capture. You mention security-wise - but are you looking for malicious network traffic, attempted logons, auditing logons to machines, all of the above? To be honest it sounds to me that you might be looking for a monitoring solution like Nagios, although that doesn't help to specify what you'll actually be logging.
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I'm confused... I think you've misplaced a bracket or two. Currently you're trying to put -MaxEvents $MaxEvents.UserID if your code is actually the above - and $MaxEvents, being just a number, won't have a user ID. Try: (Get-WinEvent -ComputerName ($ComputerName + "." + $env:USERDNSDOMAIN) -FilterHashtable @{ProviderName="Microsoft-Windows-Security-Auditing"; ID="4624"; Data="C:\Windows\System32\winlogon.exe"} -MaxEvents ($MaxEvents)).UserID
