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• CPU Benchmark - Set Load, usage spikes

  - by iulianchira

  I need a CPU benchmark to test the performance impact of various power management policies. I must be able to set the load (e.g. to get a relatively steady load of 20%-30%-60%) and to simulate usage spikes (set frequency of spikes). I would also like it to be scriptable so as to be able to change benchmark settings in an indirect manner.

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• How to diagnose remote assistance problem

  - by cantabilesoftware

  I have a long standing issue with remote assistance between a home and work PC. My wife and I both use MSN messenger and I used to be able to control her PC at home via MSN Remote Assistance. Some time ago however this stopped working and I don't know why. We're both running the latest versions of MSN Live Messenger and I've checked the appropriate firewall ports are open, but it still doesn't work and MSN just says something useless like "The person isn't responding". Any suggestions for how can I diagnose this? More info: I just tried direct Remote Desktop between work PC and home PC and it works fine - so I presume all the appropriate ports are open. Just Remote Assistance doesn't work. I'd like to get RA working so I can demonstrate how to do things remotely. With Remote Desktop the person at the other end gets booted off and can't see. With Remote Assistance they can follow along step by step. Some comments below suggest using other solutions, which is fine and do work, but there must be a way to diagnose RA and get it working. Experimenting with this some more, the notebook that I was using at work today that refused to connect works fine for remote assistance when I bring it home. So I guess this must be a problem with our network configuration at work. I've checked that 3389 is open on firewall on office router and remote desktop works both ways.... just not remote assistance. I've read that remote assitance won't work if client and server are both behind Non-UPnP/NAT routers. If one has UPnP it's supposed to work. Office router doesn't have UPnP enabled but my home one does. I've also scoured the event logs on both ends, nothing noteworthy - unless I'm looking in the wrong spot). Note (copied from comment): I've just tried ShowMyPC which is based on VNC and it works, but I'd still like to figure out what's wrong with RA - it's just bugging me. The question is only about Remote Assistance, no need to propose solutions based on other programs.[/edit by Gnoupi]

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• decrypting AES files in an apache module?

  - by Tom H

  I have a client with a security policy compliance requirement to encrypt certain files on disk. The obvious way to do this is with Device-mapper and an AES crypto module However the current system is setup to generate individual files that are encrypted. What are my options for decrypting files on-the-fly in apache? I see that mod_ssl and mod_session_crypto do encryption/decryption or something similar but not exactly what I am after. I could imagine that a PerlSetOutputFilter would work with a suitable Perl script configured, and I also see mod_ext_filter so I could just fork a unix command and decrypt the file, but they both feel like a hack. I am kind of surprised that there is no mod_crypto available...or am I missing something obvious here? Presumably resource-wise the perl filter is the way to go?

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• How to retrieve the size of a database in restoring mode

  - by Marc Wittke

  With pure SQL - how to do it? I doubt it is possible, since even the SQL Management Studio fails to show the size of such a database in the UI. Already tried: exec sp_helpdb 'DbInRecMode' ...won't show anything; exec sys.sp_helpfile 'DbInRecMode' ... something like file not found (Msg 15325) Main pitfall seems to be the issue, that select * from DbInRecMode.dbo.sysfiles won't work when the database is in restoring mode. Any ideas?

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• Removed password from Windows 7, now I cannot login using Remote Desktop

  - by Niels Brinch

  I removed the password from the only account on my Windows 7 computer and now I get the following message when I try to log in. "Possible reasons are blank passwords not allowed". I did some research and found out what I should have done (disable the policy to allow blank passwords) but now I'm already logged out and cannot get back in. Does anyone have any suggestions? Update Thanks for all the answers. I actually think the reason I couldn't login with blank password was because I was logging in with Remote Desktop. I had no idea that made a difference, so didn't think it would be relevant to mention. When I went directly on the physical computer, it did not stop me from logging in without a password.

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• Enabling the telnet client for all Windows 7 PCs on a domain

  - by ICTdesk.net

  The telnet client is disabled by default in Windows 7. I would like to enable the telnet client for all Windows 7 PCs in our domain. I know how to enable it manually: Start Control Panel Programs And Features Turn Windows features on or off Check Telnet Client Hit OK How can I do this for all Windows 7 PCs in the domain? All the Windows 7 PCs are in a separate OU. Can this be enabled by a registry setting that I can apply to all Windows 7 PCs? Can it be done by a Group Policy?

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• Amazon EC2 tools for Debian?

  - by Jonik

  What is the recommended way of getting command-line Amazon EC2 tools on Debian? So, basically the same as this question, but for EC2 instead of S3. Ubuntu has ec2-ami-tools and ec2-api-tools, but I couldn't find equivalent packages for Debian. A blog post titled "Install EC2 AMI & API tools in Debian" talks about installing Amazon's packages outside package management, but that seems a little clumsy.

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• ASP.NET area in IIS 7 on windows 2008

  - by Rodnower

  Hello, I don't see ASP.NET "area". In Add Remove programs I see .net framework 3.5 and WSE installed. May be I need particulary install the ASP.NET, but I don't know where I do this. In Windows 7 I have this area (abowe IIS and Management areas). Thank you for ahead.

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• Ubuntu 12.04 suddenly cannot connect to WPA2/WPA Personal protected connection. Windows 7 can

  - by d4ryl3

  I have a laptop with Windows 7 and Ubuntu 12.04. I have a Cisco E1200 and when I set it up, it created 2 SSIDs. Let's name them: MyConnection (WPA/WPA2 personal), and MyConnection-Guest (no authentication, guest password entered via web browser). I had no problem connecting to MyConnection before, either in Windows 7 and Ubuntu. But now, I can't access MyConnection on Ubuntu. It just says "connecting..." then disconnects after a while. But I'm able to access the internet (on Ubuntu) when I connect to MyConnection-Guest. MAC filtering is off (even if it's on its MAC address is in the white list). Any idea why I'm unable to connect to MyConnection in Ubuntu? Thanks. Update: My Ubuntu installation can connect to ANY WiFi connection (WPA/WEP/no auth), except for MyConnection. Update2: This is what "The not so easy way" returned: Initializing interface 'eth1' conf '/etc/wpa_supplicant.conf' driver 'default' ctrl_interface 'N/A' bridge 'N/A' Configuration file '/etc/wpa_supplicant.conf' -> '/etc/wpa_supplicant.conf' Reading configuration file '/etc/wpa_supplicant.conf' Priority group 0 id=0 ssid='MyConnection' id=1 ssid='MyConnection' id=2 ssid='MyConnection' id=3 ssid='MyConnection' WEXT: cfg80211-based driver detected SIOCGIWRANGE: WE(compiled)=22 WE(source)=21 enc_capa=0xf capabilities: key_mgmt 0xf enc 0xf flags 0x0 netlink: Operstate: linkmode=1, operstate=5 Own MAC address: xx:xx:xx:xx:xx:xx wpa_driver_wext_set_key: alg=0 key_idx=0 set_tx=0 seq_len=0 key_len=0 wpa_driver_wext_set_key: alg=0 key_idx=1 set_tx=0 seq_len=0 key_len=0 wpa_driver_wext_set_key: alg=0 key_idx=2 set_tx=0 seq_len=0 key_len=0 wpa_driver_wext_set_key: alg=0 key_idx=3 set_tx=0 seq_len=0 key_len=0 wpa_driver_wext_set_key: alg=0 key_idx=4 set_tx=0 seq_len=0 key_len=0 ioctl[SIOCSIWENCODEEXT]: Invalid argument Driver did not support SIOCSIWENCODEEXT wpa_driver_wext_set_key: alg=0 key_idx=5 set_tx=0 seq_len=0 key_len=0 ioctl[SIOCSIWENCODEEXT]: Invalid argument Driver did not support SIOCSIWENCODEEXT wpa_driver_wext_set_countermeasures RSN: flushing PMKID list in the driver Setting scan request: 0 sec 100000 usec WPS: UUID based on MAC address - hexdump(len=16): 16 3b d8 47 9e 24 50 89 96 16 6d 66 35 f3 58 37 EAPOL: SUPP_PAE entering state DISCONNECTED EAPOL: Supplicant port status: Unauthorized EAPOL: KEY_RX entering state NO_KEY_RECEIVE EAPOL: SUPP_BE entering state INITIALIZE EAP: EAP entering state DISABLED EAPOL: Supplicant port status: Unauthorized EAPOL: Supplicant port status: Unauthorized Added interface eth1

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• Task-dedicated computers for the household?

  - by Matias Nino

  This question is to generate ideas for task-dedicated computers in a household. Here's mine: Personal Desktop - Gaming, working, office productivity, entertainment, CD/DVD burning General Server - backups, application hosting, mail server, file server, VM server, torrent seeding Personal Laptop - software development, mobile computing Media Center PC - Digital media playback, media file server, Gaming Photo PC - Digital photo management/archival. Nightstand Netbook - Bedtime surfing/reading Spare Laptop - general household use

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• IIS Redirect a sub directory to an external URL

  - by Will Hancock

  Hi forgive my ignorance for I am a humble client side developer... I am a webapp made up of static HTML and JS. But I want to call an external service via AJAX, this causes some issues with CORS or Cross Domain policy on the browser. So I need to make a request to MY server http://dev.webapp.com/service So I want to redirect the /service on the server to http://externaldata.com/service And return the result. The Mac boys have acheived this in Apache with a proxy pass: ProxyPass /service http://externaldata.com/service Can anybody help with how to do this in IIS? I have found articles about ARRs and Reverse Proxy, terms that are alien and seem too complicated. As a humble webdev can I do this using IIS GUI?

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• How does one remove an encryption type from a kerberos principal?

  - by 84104

  I would like to remove all of the des keys from the principal below, but have no idea how to do so without someone inputting the password. kadmin: getprinc user Principal: [email protected] Expiration date: [never] Last password change: Thu May 26 08:52:51 PDT 2013 Password expiration date: [none] Maximum ticket life: 0 days 12:00:00 Maximum renewable life: 7 days 00:00:00 Last modified: Tue Jul 16 15:17:18 PDT 2013 (administrator/[email protected]) Last successful authentication: Wed Jul 24 14:40:53 PDT 2013 Last failed authentication: [never] Failed password attempts: 0 Number of keys: 8 Key: vno 3, aes256-cts-hmac-sha1-96, no salt Key: vno 3, arcfour-hmac, no salt Key: vno 3, des3-cbc-sha1, no salt Key: vno 3, des-cbc-crc, no salt Key: vno 3, des-cbc-md5, no salt Key: vno 3, des-cbc-md5, Version 5 - No Realm Key: vno 3, des-cbc-md5, Version 5 - Realm Only Key: vno 3, des-cbc-md5, AFS version 3 MKey: vno 2 Attributes: REQUIRES_PRE_AUTH Policy: [none] Also, the the kdc is using an OpenLDAP backend.

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• set up re-direct for lan clients to local t&c page

  - by tb2571989

  Hi, I'm trying to set up something on my network so that when users connect and try and use the internet they are re-directed to a locally-hosted terms and conditions and policy page. Once they click "accept" then they will be passed through to their homepage, otherwise if they decline then the window will close or show them an error message. I've spent a while looking into this and am wondering if it's possible to do witout having to setup/add to a firewall. Otheriwse let me know what my options are and I can pass it on. Many Thanks Tom

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• Lenovo remote control media redirect

  - by Braithwaite Patrick Sean

  On a lenovo ThinkServer RD240 running firmware 1.20 with the latest BNC software, using the remote console to redirect a CD-ROM fails with the error: "CD-ROM redirection is not supported on this platform". Similar error for forwarding an iso image, foppy and USB drive. I tried executing the management console from Ubuntu, Windows 7 and OS X with the exact same error. The question is: What platform does the jViewer console support any kind of media redirection?

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• How to force a "do you really want to shutdown?" dialog in Windows 7?

  - by Vokuhila-Oliba

  Sometimes I want to choose "Logout current user", but then I hit "Shutdown" by accident. Nearly everywhere else Windows 7 is asking "do you really want to do this? Yes/No" - but that's not the case when I hit the "Shutdown" button. Windows 7 shuts down immediately without giving me the chance to correct my mistake. So I am wondering - why does Windows shut down immediately without asking "really do that?" in this case? Is there a way to change this behavior? For example, could I force Windows to display a dialog asking "Do you really want to shutdown?"? I tried to change this behavior with the policy editor. It seems to be very easy to completely remove the Shutdown button from the Start menu, but I couldn't find an entry to turn on such a Yes/No dialog.

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• Deploying an application on a windows domain

  - by ALOToverflow

  I'm looking for different ways to deploy, execute and uninstall an application on all machines of a Windows domain. I've did some research on Group Policy Object (GPO) but I'm still looking for other ideas. As I said, I need to deploy the application, run it without the user having to click anything and letting him to control over the machine. Once it's finished running I need to uninstall it and never run it again. Can such things be done with a GPO? Are there any other possibilites on a Windows domain? Thank you

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• Timout dead connections to Digi PortServer TS16

  - by MT

  We are using Digi portservers for console management of our routers. Basically users telnet to the Digis on ports 2001-2016 (corresponding to the physical serial port they want to connect to). Does anyone know if there is a way to cause the digi to close/release a user's connection after an period of idle time and if possible, where that time can be specified?

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• Restarting an IBM BMC without restarting the server itself

  - by SRobertJames

  I have a few servers with IBM BMC (Baseboard Management Controller). I'd like to power cycle the BMC without restarting the server. Is this possible? How? Note: On one of them, the web interface is down; so I'd need to either do this by physically restarting the BMC (not sure how to do this - even the power button on the server isn't supposed to recycle the BMC, I believe) or via the UDP or SNMP interface (again, not sure how to do that either)

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• What is the optimum way to secure a company wide wiki?

  - by Mark Robinson

  We have a wiki which is used by over half our company. Generally it has been very positively received. However, there is a concern over security - not letting confidential information fall into the wrong hands (i.e. competitors). The default answer is to create a complicated security matrix defining who can read what document (wiki page) based on who created it. Personally I think this mainly solves the wrong problem because it creates barriers within the company instead of a barrier to the external world. But some are concerned that people at a customer site might share information with a customer which then goes to the competitor. The administration of such a matrix is a nightmare because (1) the matrix is based on department and not projects (this is a matrix organisation), and (2) because in a wiki all pages are by definition dynamic so what is confidential today might not be confidential tomorrow (but the history is always readable!). Apart from the security matrix, we've considered restricting content on the wiki to non super secret stuff, but off course that needs to be monitored. Another solution (the current) is to monitor views and report anything suspicious (e.g. one person at a customer site having 2000 views in two days was reported). Again - this is not ideal because this does not directly imply a wrong motive. Does anyone have a better solution? How can a company wide wiki be made secure and yet keep its low threshold USP? BTW we use MediaWiki with Lockdown to exclude some administrative staff.

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• RODC password replication and A/D sites and subnets

  - by Gregory Thomson

  I work at a school district with about 30 school sites. Windows 2008 A/D setup - all central at the district office. In A/D, all is under one site, and no subnets defined. One A/D forest and only one domain under that. We're now looking to start putting RODCs at the schools to put the authentication and DNS out there closer to them. I haven't worked with A/D sites and subnets, and only a little with RODC password replication. But just got an invite to a meeting to talk about this tomorrow... If we start breaking down the A/D pieces into sites/subnets, can we also use that as a way to help apply an RODC password replication policy in a way that matches so that only each school sites' users passwords are replicated/cached on their RODC?

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• Windows Server 2012 - SSL Cypher Suite Order Not Long Enough

  - by Sam

  I want to re-order the cypher suites on our new Windows Server 2012 box to help mitigate the BEAST vulnerability for our clients. I went to Local Group Policy => Computer Configuration => Administrative Templates => Network => SSL Configuration Settings, opened SSL Cypher Suite Order, enabled it, and copied the values from the SSL Cypher Suites textbox. I pasted them into notepad, re-ordered them, then copied+pasted them back into the SSL Cypher Suites textbox. However, the box isn't long enough to hold them all, despite the fact that the length didn't change. I would have to drop the last 3 cyphers (SSL_CK_DES_192_EDE3_CBC_WITH_MD5,TLS_RSA_WITH_NULL_SHA256,TLS_RSA_WITH_NULL_SHA) in order for it to fit. Should I just drop them? Other ideas?

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• I cannot access Windows Update at all

  - by Cardinal fang

  I have been unable to access the Windows update site for a couple of weeks now. I just get a message saying "Internet Explorer cannot display the webpage" and saying I have connection problems. Same thing is replicated with any other Microsoft site I try to access. The Automatic Updates also do not work. I can access every other wesbite I've surfed to. I've tried Googling the problem and based on what other site have suggested I have cleared my cache and temp files. I've scanning my hard drive with my antivirus in case I have a virus (nada). I've tried turning off my firewall and anti-virus (I run Zone Alarm). I've downloaded SpyBot and scanned my drive with that in case something was missed by Zone Alarm (again nada). Based on suggestions from the smart cookies on the Bad Science forum, I've used nslookup to check my translation isn't wonky (got all the info they said I should get). I've also tried navigating there directly using the IP address I was given (nope). I normally access the internet through a 3 mobile broadband connection, but have also tried connecting using a mate's wi-fi connection in case it was something on my mobile modem interferring. I run Windows XP SP3 with Internet Explorer 7 and Zone Alarm Internet Security Suite as my anti-virus/ firewall. Any suggestions?

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• Apache / Postfix / Cyrus question

  - by Lerikun

  Apache: I have multiple domains on one hosting. I have a web-management software listening to port 3000 and one phpmyadmin. Can I restrict access to a certain domain? I mean that example.com:3000 will work and notexample.com:3000 not? (same for phpmyadmin) UPD: I have 3 IP's pointing to that host. Postfix/Cyrus: What is the right config to reject emails to mailboxes which do not even exist? (LDAP) Thanks

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• SSH attack CentOS Amazon EC2

  - by user37143

  Hi, I run a few Rightscale CentOS AMI based instances on Amazon EC2. Two months back I found that our SSHD security is compromised( I had added host.allow and host.deny for ssh). So I created new instances and done an IP based ssh that allows only our IPs through AWS Firewall(ec2-authorize) and chnaged the ssh 22 default port to some other port but two days back I found I was not able to login to the server and when I tried on 22 port the ssh got connected and I found that sshd_conf was changed and when I tried to edit sshd_config I found root had no write permission on the file. So I tried a chmod and it said access denied for 'root' user. This is very strange. I checked secure log and history and found nothing informative. I have PHP, Ruby On Rails, Java, Wordpress apps running on these server. This time I did a chkrootkit scan and found nothing. I renamed the /etc/ssh folder and reinstalled openssh through yum. I had faced this on 3 instances on CentOS(5.2, 5.4) I have instances on Debian as well those working fine. Is this a CentOS/Rightscale issue. Guys, what security measures I should take to prevent this. Please support me this is very critical. Thanks

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• TFS 2010 and SCVMM to manage snapshots

  - by ELSheepO

  I have a VM with TFS 2010 and SCVMM 2008 installed on (I know your told not to do that). I have SCVMM linked to the host and thats working good, and have configured the scvmm on the lab management tab on TFS. My question is, how can you take/roll back snapshots automatically? ie install base take snapshot install patch run tests take snapshot go back to snapshot taken at step 2 Thanks in advance.

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