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• tools to check password security

  - by tombull89

  Hello again. I'm after a tool to test how long a password could stand up to a hacking/cracking technique such as brute force as two passwords that are critical to a work system is one word that is in the dictionary, and another is a word in the dictionary with a capital letter and a number instead of a letter. I'd prefer it to be offline and free that you can run on a computer to see how long the password will hold out. Maybe even at the windows login prompt but I realise such programmes may be shady and erring on the side of illegal. Anybody have any suggestions?

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• What does "every two minutes" mean in cron?

  - by Ambrose

  I've got two scripts in cron set to run every two minutes: */2 -- the thing is, they're out of step. One runs at 1,3,5,7,9 minutes, etc. and the other at 0,2,4,6,8. This is not a mission-critical problem, but means I've got two status reports, one a bit stale compared to the other. What does cron do exactly? Run the first one in crontab document order, waiting till it's finished to run the second one? Is there any way I can make the run at the same time, or as close as possible?

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• Force logoff of idle users on Windows 7 workstation with fast user switching enabled

  - by newmanth

  We have mission-critical Windows 7 workstations on our network that must be available to any user at any time, even when it has been locked by a prior user. Thus, we have fast user switching enabled. Unfortunately, it's not unusual for us to have a dozen or more different users logged onto the same machine at the same time, with a corresponding degradation in service. We've done our best at educating the masses to log off at the end of their shift. But users being users, this does not happen on a consistent basis. Does anyone know of a clean way to force logoff idle users after a certain amount of time has elapsed? I am open to any method that could be deployed/configured via script, GPO, or SCCM.

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• Setup a automatic server reboot on when a particular service fails

  - by user1179459

  I am running linux based server (centos 6.0) with cpanle and WHM, I have critical website running with a chat server which uses a openfire as the chat server backend server, i have monitored last few weeks this service crashes quite often, i have no way of knowing that, and i have to wait till the next day to restart the server. (and this can only be fixed by using server reboot as its got to do with some java memory problem) is there a way i can setup a monitoring service to the server and if this service goes down server itself will reboot ? is this something possible or is there a better way to overcome this problem ?

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• There is a commercial tool like Xen + Remus?

  - by SoMoS

  Hello, I have a project where we need a completely redundant system like the one offered by Remus with a Xen virtualization system. I wondered if there is a system like this one built by VMWare or some other company because the project is a very critical one and we do not want to have to wait that a bug is fixed by "the community" and money is not a problem. What Remus does is to build a completely redundant system where you can shutdown one machine and the other continues the work where the other left it maintaining the network connections opened, etc Any hint? Thanks in advance.

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• Windows terminating system processes

  - by jemper

  To be sure nobody will answer me with advice on not trying to terminate critical (system) processes - I'm relatively experienced in programming and Windows in general - I'd know what I'm doing so far. So there are these processes that can't be terminated with taskkill - system processes in general. But there also is, for example my Anti Virus program that makes itself "unterminateable". How can I access and mainly terminate system processes under windows? (kill.exe by Microsoft doesn't work) How do processes like anti-virus programs protect themselves? How can you turn them off again, then?

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• I bought a domain name at GoDaddy and hosting at Dreamhost but the first doesn't work!

  - by janooChen

  I added the Dreamhost's nameservers like 12 hours ago to: I entered to the following panel: Nameservers -> Set Nameservers (I have specific nameservers for my domains) and added Dreamhost's nameservers liek this: Nameserver 1: NS1.DREAMHOST.COM Nameserver 2: NS2.DREAMHOST.COM Nameserver 3: NS3.DREAMHOST.COM So now in the admin panel I see this: Nameservers Nameservers: (Last Update 2/10/2011) NS1.DREAMHOST.COM NS2.DREAMHOST.COM NS3.DREAMHOST.COM But I get this when I run the analysis tools: Attention Required! There are critical issues Accessing Your Web Site Accessing Your Web Site Properly configuring your domain name and hosting account ensures that visitors can access your site. Did I do something wrong or I have to wait 24 to 48 hours? (Dreamhost does display my page because I can access the other domain name I bought together with the hosting) (By the way, if everyone uses the same nameserver, how will go GoDaddy know which is the hosting space that I purchased among all others)? Thanks in advance.

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• How do you monitor a monitoring server?

  - by organicveggie

  So we run Groundworks (with Nagios) on CentOS to monitor our various servers and processes. I have it setup to automatically send emails and SMS texts when things reach a WARNING or CRITICAL state. Normally this works perfectly. However, twice we've had problems with Postfix on that server where Postfix decides to stop sending email. The most recent time lasted 4 days because none of us noticed. That leads me to a important question: how am I supposed to monitor my monitoring server?

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• Repartition hard drive using Mac OS X, keep existing data

  - by Jonny

  I got a 1 TB disk a year or so ago and loaded it with some hundred of GB of data. I somehow neglected to check the file system, which turns out to be FAT-32 and thus too small for files bigger than 4 GB. So now I want to change it, without deleting the data. I thought I'd just make a new partition in the so far unused space. Then with the new partition, copy/move the data into the new partition, and then delete the old FAT-32 partition, and make the new partition bigger again... or just make a few more partitions. The critical step here is, can I make that new partition without ruining the data? The data should be fairly sequentially added to the start of the disk, but what do I know... so that's why I'm asking. Can I safely use Disk Utility for this? Any recommended file system?

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• Cloning Windows 2003 Server to new hard drive results in failure

  - by Level1Coder

  Scenario: Old hdd is a Seagate 320gb SATA drive New hdd is a WD 320gb SATA drive Created an exact clone and replaced old hdd with new hdd. Boot up with new hdd, it gets into Windows 2003 server environment but things look weird. Lots of system event failures in the event viewer log. System is barely unusable, critical services are all down. Boot up with old hdd, everything is fine. QUESTION: Is it possible to do a simple clone of a Windows 2003 server system? All I'm changing is the hard drive, everything else stays the same (old CPU/old mobo/etc..)

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• Our server hosting provider asked for our root password

  - by Andreas Larsson

  I work at a company that develops and hosts a small business critical system. We have an "Elastic cloud server" from a professional hosting provider. I recently got an email from them saying that they've had some problems with their backup solution and that they needed to install a new kernel. And they wanted us to send them the root password so they could do this work. I know that the email came from them. It's not [email protected] or anything like that. I called them and asked them about this, and they were like "yep, we need the password to do this". It just seems odd to send the root password over email like this. Do I have any reason to be concerned?

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• Cisco training basic, entry, ASA/PIX. Help to understand network

  - by Inbr3d

  I need to learn how to configure Cisco ASA/PIX boxes within my network. I have the task to impliment a new ASA 5505 into a new site we purchased. I have over 9 devices linking my sites together and with no support from the previous IT company im finding it hard to get to terms with what they can do and what they are currently doing. I know there are hundreds of guides how to configure them but into an existing environment? can anyone recommend courses within the UK that can help me? Im not much of a book reader, i would need to be able to manage my network after. also, should i seek external contracts to support these devices? as they are critical for our work. thanks

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• Laptop hot after format [migrated]

  - by Dany Khalife

  I recently formatted an HP G62 Laptop and installed all drivers from the HP site that should be installed for this model. But i noticed a very strange behavior, using Coretemp, the temp is always above 50 (on idle) and reaches 70 very quickly sometimes (Critical is 90) If i open youtube or skype alone, i can get temperatures as high as 83. Normally it was around 32 (on idle) and reaches 70 when i open games but not youtube.... I have a i3 processor and AMD graphics so i am wondering if somehow it's a graphics card issue (since i3 has integrated graphics as far as i know) Device manager shows only AMD graphics card tho, not sure if i3 graphics should appear here too. Any ideas what i might have forgotten to do after the format ?

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• Pinnacle Studio 14 Importer crashes on Windows 7 x64

  - by Tuminoid

  Pinnacle Studio 14 Importer crashes on Windows 7 x64, thus I'm unable to import videos from my camcorder. I've Googled around and it seems to be a problem with x64 support in the program, but there is no info if it can somehow be remedied with Compatibility settings, XP mode. Further Googling got me this link, and none of the tips in site it links help. I've got no idea what ObjectDoct Plus 2 is (no a program or service installed by that name) which he claims causes the problem. Is that ObjectDoct critical to Pinnacle Studio and how to get rid of it (or any other advice how to make Studio 14 work on x64). UPDATE: 1) XP mode doesn't help as it doesn't handle Firewire, which is how my Canon HV20 must be connected to transfer HDV from tape. 2) I don't have that ObjectDock installed. 3) I don't wanna re-buy PS15 just to get this solved as PS14 should be able to do it.

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• Amazon EC2 hostnames

  - by Firefly

  I'm currently trying to setup a Tigase cluster on Amazon EC2 instances in a VPC and I'm having troubles getting it to work due to the hostnames of the instances not being "full DNS names". According to the Tigase documentation: Please note the proper DNS configuration is critical for the cluster to work correctly. Make sure the 'hostname' command returns a full DNS name on each cluster node. Can anyone explain what a full DNS name is and how I can set my instances to use one? Currently my instances get a default hostname of the form "ip-10-0-0-20".

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• Free / Cached / Available memory on Linux

  - by pkoraca

  I have read that linux uses free memory for caching, to make system faster. However, both Nagios and Paessler PRTG monitoring system show me that my memory usage is critical. I could change Nagios mem_usage script to sum free and cached memory, but would that be correct information? I doubt that they misunderstood Linux memory usage. Lets say I have 8 GB RAM. 5 GB are used, 2 GB is cached, and I have 1 GB of free memory. Real available memory should be free+cached (3 GB)? If some new application would need additional 3 GB RAM, could it take everything from cache and free without using swap, or is there a minimum that should be in cache? Real example: $ cat /proc/meminfo MemTotal: 5984256 kB MemFree: 137052 kB Buffers: 140484 kB Cached: 3439616 kB SwapCached: 244 kB Active: 3148824 kB Inactive: 2341768 kB ... My monitoring tools show that I have 137 MB free RAM, however I have ~3,5 GB in Cache. Thanks!

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• Replicate portion of an LDAP directory to external server

  - by colemanm

  We're in the process of setting up a Jabber server on Amazon EC2 right now, and we'd like to have our internal users authenticate via LDAP so we don't have to create/manage a separate set of user accounts than the master directory in the office. My question is: is there a way to copy, unidirectionally, a segment of our internal LDAP directory (the user accounts OU) to an external LDAP server and authenticate Jabber against that? We're trying to work around having our externally hosted machines out in the cloud accessing our internal network directly... If we can replicate in one direction only a subset of the user accounts, then if that gets compromised we don't necessarily have a critical security breach into our internal network.

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• TB3.0.10: Messages being sent back to me

  - by punkinette64

  Hello, I don't know if this will make any sense to you; but here goes. When I send an email and I get a response, more often than not, in the 'to:' is my email address. However, my email address also ends up in the 'from' column.The 'reply-from' address is nowhere to be found;so I don't have any address with which I can send my reply, as both of them have just my email address. What am I doing wrong here? Is there some set-up in my TOOLOPTIONS set-up incorrectly? The set-up in OPTIONS is pretty difficult to understand and it doesn't offer any 'to' or 'reply-from' choices. This is critical because I just cannot answer my emails because there is no one I can send a reply to. Please, please try to help me. If you have the answer, please email me at: [email protected] Thank you. Blessings. Shiloh

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• reaching 99.9999% uptime

  - by christopher-mccann

  I am currently developing a project which is mission-critical. The actual domain name is registered with 1 & 1 and I plan on purchasing DynDNS Custom DNS service (which has 5 different geographical locations for DNS) and then another secondary DNS service to make sure my DNS is as failover safe as possible. Does it matter that the registration is with 1 & 1 - are they a weak link in the chain? All I really use them for is to say that DynDNS is my primary DNS nameserver and then my secondary DNS is my other nameserver. I can transfer the registration to DynDNS - Im just not sure if it really matters or not. Thanks

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• ASUS P5B Plus motherboard - no any drives found - how to restore RAID array?

  - by Moha

  We have a small server machine with an ASUS P5B Plus motherboard and 4 SATA HDDs. The HDDs were configured in a RAID10 array. Up until now, everything worked fine, but now the system doesn't recognize the drives. BIOS is set to RAID, jMicron controller is set to RAID, yet I can't see any of the drives in the BIOS setup, and jMicron BIOS tells me "no any drives found" The HDDs all spin up, I hear no clicking sounds or anything that would suggest HDD error. I did a search on this problem and replaced the SATA cables as suggested, but nothing's changed. What I have in mind is checking the CMOS battery and resetting the BIOS to use IDE mode, but I don't know if it will ruin the RAID system on the HDDs. It is not a critical server and there's only one database running on it (which I have backup of), but I don't want to setup the server from scratch if not necessary. What should I try to restore the RAID array and put the server back to working order?

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• raid 5 creation (using mdadm) lots of read/writes on creation: is this normal?

  - by Gbrits

  I created a software raid 5 disk using: mdadm -C /dev/md2 -l5 -n4 /dev/sd[i-l] at the same time I'm using dstat to see io-activity: dstat -c -d -D total,sda1,md2,sdi,sdj,sdk,sdl -l -m -n and notice that disks sd[i-k] are all read from and sdl is written to. Now, I do understand that raid5 has to be configured, but it takes a really long time and all disks are clean & formatted (using xfs) so I figure there might be some kind of shortcut to skip (unnecessary? ) checking.. Is it? The creation is part of a time-critical nightly batch-process (run on amazon ec2) so it's not a one-time thing. Thanks, Geert-Jan

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• Schedules Folder Backup

  - by Junaid Saeed

  i have some folders in C drive on which i work on daily basis and the data in them is very critical.. so every night when i shutdown my PC i copy - paste - overwrite existing files these folders to a separate location... so that of the system crashed or something bad happens.. i will be able to easily format C and all i cannot move these folders from C drive because these folders include C:\wamp\www\ of WAMP server and such folders... is there a tool on which i can schedule that everyday at X time these folders will be backuped to 'Y' path

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• Esxi with iSCSI SAN slows down with many multiple VMs running

  - by varesa

  I have a server with ESXi 5 and iSCSI attached network storage(4x1Tb Raid-Z on freenas). Those two machines are connected to each other with Gigabit ethernet, and a procurve switch in between. After a while, if I have many(4-5 or more) vms running, they start to get un-responsive (long delays before anything happens). We are trying to find the reason behind this. Today we looked at esxtop, and found that DAVG of that iSCSI LUN stays at 70-80. I read that +30 is critical! What could be causing those high response-times?

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• What is a proper MySql replication configuration for frequent db updates and rare selects?

  - by serg555

  We currently have 1 master db on its own server and slave db on app server. App executes very frequent but light updates (like increasing counters), and occasional (once in a few minutes) heavy selects (which is the most important part of the app). When app was connected only to master db there were no performance issues. With slave db introduction CPU load avg on app server increased to about 6-10 during that heavy select period (from 3-4 as before). When server doesn't run those frequent updates it seems like performance for selects stays within the limits. So I have a feeling that those updates is what is causing the performance drop (also these frequent updates are not critical so if slave db doesn't have them in sync with master for some time it would be ok). What would be a good db replication setup for such kind of app? What are the replication parameters we could tweak? Thanks.

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• Minimal backup for Windows 7 system recovery

  - by JIm

  There might not be an answer to this, but for a home Win7 system, what files/directories must be backed up to recover after a windows crash? I can reinstall software, and I keep data files elsewhere. When I use acronis home backup software to backup my "critical" files it seems to choose the entire partition. Updates are mostly browser cache files and the like. Or, after a crash, should I just reinstall windows. I dread the hours of windows updates that would require. Thanks.

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