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• Laptop hot after format

  - 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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• Laptop hot after format

  - 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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• Juniper J4350 out of order

  - by Benjamin Baron

  I have got two (2) Juniper routers J4350 that are out of order : All the interfaces are down (leds on the interfaces don't ligthen, ping dosen't respond) No output on the console port (even when booting) I've tried to reset the router (holding the RESET CONFIG button on the front panel during 15 seconds) and nothing happened, even while booting the device I've opened the router to check the fans. I've removed some dust and nothing has changed. I wanted to precise that the leds on the front panel are all on: The POWER led is green The STATUS led is red The ALARM led is on and is orange The HA (High Availablity) is on and orange as well I have found nothing on the Internet to solve this problem... Thank you for helping me :)

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• Reconciling vmware memory vs windows memory usage

  - by RyanW

  I have a Windows 2008 R2 64 bit virtual machine on ESXi 4.1 host. The host reports that the virtual machine is actively using less than 1 GB of memory. But, in Windows it's reporting the machine is using 7 GB of memory, even though the total of the processes listed in task manager is less than 1 GB. The machine is rather unresponsive and I'm concerned this is impacting other applications (server's purpose is to run ASP.NET state server process, which has been having trouble and led me to spot the memory question). I just noticed High memory usage Windows Server 2008r2 on VMware and will be looking through those documents more, but what is causing this?

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• Suggestions for a SOHO/Home Asterisk system

  - by James

  I would like to buy a small embedded system that runs Linux and Asterisk. I would like two FXS ports ( to plug analogue phones into ) and one FXO port ( to plug in to my real line to allow access to the POTS ). I would like it to have a USB port to hold storage for voicemail. I really want it for home use so I would like it to be under £150 ( say $250 ), given that you can buy ADSL routers for around this much can any of them be made to run Linux and Asterisk? I don't want a PC as the power usage would be too high. I am looking for something like this ASDL router but open and able to run Asterisk or another open PBX. At worst I would like a box which had one FXO and two FXS and just made them completely available over IP to a full Asterisk system on a low power Atom system.

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• OLTP Sql Server RAID configuration with 10 disks, allocation Unit and disk stripe size

  - by Chris Wood

  On a new db server I only have 10 disks to play with, The usage is about a booking every 3-5 seconds, so not high volume, I know compromises have to be made, but my initial thoughts are - DISK 1 & 2 - RAID 1 - OS DISKS 3,4,5,6 - RAID 10 - Data, Indexes & TempDB DISKS 7,8,9,10 - RAID 10 - Logs & Backup Full backups will take place when there is virtually no traffic on the website so not bothered about the contention with the logs. disk 3-10 - 8kb NTFS unit allocation size disk 3-10 - 64kb Disk Stripe size does this seems to be sensible, any other considerations I have omitted ? thanks

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• How do companies know they've been hacked?

  - by Chad

  With the news of Google and others getting hacked, I was wondering how companies find out, detect, and/or know they've been hacked in the first place? Sure, if they find a virus/trojan on user's computers or see a very high access rate to parts of their system that don't usually see much, if any, traffic. But, from what I've see in articles, the attack was pretty 'sophisticated', so I wouldn't imagine the hackers would make it so obvious of their hacking in the first place. Maybe someone can enlighten me on current detection schemes/heuristics. Thanks.

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• Can't connect Alienware M11x wireless to internet thru families router

  - by Jim Kron

  Morning All, Have an Alienware M11x loaded with Win 7 Premium with the Dell half card wifi. Also have a Netgear and Belkin USB external adapters (b/g and N to include dual radios. No joy either. Families Internet is served thru Charter and they use a Motorola Router. No matter if we reset the router, I cannot connect to the Net but can talk to the router. BTW... my brother only uses WEP as a number of connected items are old and my folks are not in a high threat area for attacks. Frustrated, as I know what I'm doing but this really has me stumped. Any thoughts? Much appreciated, Jim

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• Office 365 E3 with Exchange Hosted Encryption (EHE)

  - by Stephen

  I hope this is the right forum for posting this question. I have a client who wants to move to Office 365. They are currently running on a trial of Office 365 E3 plan. My staff are now also using Office 365 E3 via the internal use licences provided as part of the MS Cloud Partner benefits. We've search high and low, spoken to about 15 different people at Office 365 Support, as well as my local distributor's MS Product Manager, but we cannot seem to find out exactly how to purchase/subscribe to the Exchange Hosted Encryption (EHE) service, or how to configure/use it from Office 365. Does anybody out there have any insight into how we can setup and use the EHE service? Thanks! Stephen

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• Is FreeBSD better than CentOS for firing 40k concurrent connections (for Jmeter)?

  - by blacklotus

  Hi, I am trying to run Jmeter to simulate 40k concurrent users and stress test a particular system. Putting aside the possibility that Jmeter may not be able to push such a high number (although I have read that it is at least possible to handle 10k concurrent threads on a very powerful machine), is FreeBSD a better OS as compare to CentOS to be used for my Jmeter machine? Reason for asking this is that, I have found articles on FreeBSD for tuning and optimizing for maximum outbound connections, but seem to have little luck with CentOS. Personally however, I am more familiar with CentOS and would like to stick with it if possible. Any input is greatly appreciated!

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• low performance on HPC cluster (sge) when running multiple jobs

  - by Yotam

  O know this is a long-shot but I'm clueless here. I'm running several computer simulations on High Performance Computation cluster (HPC) of oracale grid engine (sge). A single job runs at a certain speed (roughly 80 steps per second) when I add jobs to the machine, at a certain treshhold, the speed is recuded by two. On one machine (I don't know the cpu kind) the treshold is 11 jobs for 16 cpu's. On another one with the same number and kind of cpu's , the treshold is 8. I thought at first that this is a memory issue but each job takes about 60MB - 100MB and I have 16GB of ram on each of those machine. Did any of you encountered such a problem? is there any way to analyz this? Thanks.

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• Is an Ethernet point to point connection without a switch real time capable?

  - by funksoulbrother

  In automation and control, it is commonly stated that ethernet can't be used as a bus because it is not real time capable due to packet collisions. If important control packets collide, they often can't keep the hard real time conditions needed for control. But what if I have a single point to point connection with Ethernet, no switch in between? To be more precise, I have an FPGA board with a giga-Ethernet port that is connected directly to my control PC. I think the benefits of giga Ethernet over CAN or USB for a p2p connection are huge, especially for high sampling rates and lots of data generation on the FPGA board. Am I correct that with a point to point connection there can't be any packet collisions and therefore a real time environment is given even with ethernet? Thanks in advance! ~fsb

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• Can admins monitor my activity locally even when I use a VPN?

  - by Arjun Create

  My school has one of those super overreacting web blockers (specifically Fortisnet) that blocks things that should be accessible by a high-school senior trying to research projects. Despite many students' complaints the administration's hands are tied due to parents' complaints. I have setup a VPN account from http://www.vpnreactor.com. With this I am able to bypass the blocker. I know this service hides my IP from websites and servers on the web. I also know that the school pays an IT guy just to monitor sites and network traffic that the students are using. Basically, will he be able to see my network traffic? More importantly, will he be able to trace it to my computer or its MAC address? I am connecting over Wi-Fi, not ethernet.

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• Clear / Flush cached memory

  - by TheDave

  I have a small VPS with 6GB RAM hosting a couple of websites. Recently I have noticed that my cached memory size is quite high - see below: Cpu(s): 0.1%us, 0.1%sy, 0.0%ni, 99.1%id, 0.0%wa, 0.2%hi, 0.4%si, 0.0%st Mem: 6113256k total, 5949620k used, 163636k free, 398584k buffers Swap: 1048564k total, 104k used, 1048460k free, 3586468k cached After investigating if there is some method to have this flushed or cleared I stumbled upon a command which is: sync; echo 3 > /proc/sys/vm/drop_caches I read it could be useful to add this to a chron-task/job. Is this method recommended or could this lead to potential problems? The only concern I have is that I use one Magento installation on Memcached - could this have any negative effects on it? I am certainly not a pro therefore I would very much appreciate some expert advise. PS: My VPS runs on CentOS 5 x64 and I have WHM + NGINX installed.

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• Deprioritize BitTorrent traffic

  - by Steven Xu

  I'm sure the question has been asked before, but I can't seem to find it for myself; my Google-fu eludes me. My router, the Linksys E2000, does a decent job at being reasonable about prioritizing some sorts of traffic above BitTorrent traffic (there isn't too much interruption to port 80, 443, or 22 traffic, the ones I use most often). But other ports get pummeled. For instance, 3000 (which I use for local Rails testing) becomes almost entirely non-functioning. Xbox Live traffic (not sure about the ports, but they are in the 1000 range) doesn't do well either. So I'm wondering how to ensure that XBL and local Rails testing maintain strong service while BitTorrent is going. Is it enough that I turn up the QoS on their associated ports to high? It doesn't seem to be as effective as when BitTorrent isn't running at all (I don't know if there's a way to deprioritize BitTorrent traffic).

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• Selectively allow NetBIOS inbound traffic

  - by shayan

  This is what I try to achieve from a very high point of view: Every time someone tries to access my shared folders (on Windows) a popup should open and ask for my permission. Do you know any tool? Something like "NetShareMonitor" is helpful for monitoring only A tool like an Antivirus these days has a focus on outgoing traffic A normal firewall does not allow me to select at the time of request. Setting User Permissions is not an option, I want to allow/deny at the time of request even if it is the same user over and over again.

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• Any way to disable specific CPU sleep modes?

  - by Philippe

  I just got a new Toshiba Tecra S11 notebook, which has a Core i5 520M CPU, and it appears to suffer from a well-known problem: a high pitched noise when the CPU is idle. Googling around revealed that this is caused by a specific power-saving mode in the CPU. In most cases, C4 mode is blamed for the noise. So my question is: is it possible to disable C4 mode (or any other "sleep" mode) using some utility or BIOS setting? I don't mind if it hurts battery life. I'd appreciate any advice on this matter. It's driving me crazy.

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• How to set up Google Apps (mail) MX Records on DNSMadeEasy (screen shot included)

  - by user41847

  I am attempting to complete google's mail MX setup. I would link, but new users can't have two links, and I think the following img is more important. This is what my input options are for DNS Made Easy, which manages my domain: http://img94.imageshack.us/img94/5662/dnsmadeeasy.gif I would like to confirm that I understand the fields correctly. It is my understanding that I am supposed to: Leave Name (Host) Blank Set Data to ASPMX.L.GOOGLE.COM. (and repeat for each of the server addresses provided by google) Set the MX level to what Google has in "Priority" column Set TTL as high as possible Did I get it right? The nightmare scenario is that I screw up, and bring everyone's mail down :P Thanks in advance for your time.

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• MD3200i Slow Performance and Queue Depth

  - by Caleb_S

  Read performance on our SAN is slow under certain workloads. When we compare this to some local storage, we find the local storage performing 2x as fast. The SAN performs well with a high Queue Depth, and poorly with a low queue depth. However, the local storage performs well with a low Queue Depth. I'd like to know the reason for this occurring and find out what the specific limiting factor is in this situation. MD3200i iSCSI SAN ($15,000) 6 x 600GB 15k SAS RAID5 6 x 2TB 7.2k NLS RAID5 XCOPY /j Benchmark: (Slow) 15k Array - 71MB/s (Queue Depth 1) 7.2k Array- 71MB/s (Queue Depth 1) Robycopy /MT:32 Benchmark: (Fast) 15k Array - 171MB/s (Queue Depth ~12) 7.2k Array- 128MB/s (Queue Depth ~12) , , Read Performance on a Local controller is fast under the workload the SAN is slow at. , HighPoint 2230 RAID Controller ($600) 4 x 1TB 7.2k SATA RAID5 XCOPY /j Benchmark: 7.2k Array - 145MB/s (Queue Depth 1) (appears to max out the SATA bus)

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• VMware Server guest systems are extremely slow with IO load on host (Ubuntu 8.04)

  - by Dennis G.

  We are experiencing performance issues with a VMware Server 2.x installation on an Ubuntu 8.04 host. When the host system is generating IO load (for example, copying large files as part of a backup operation), the guests (also Ubuntu 8.04) become extremely unresponsive and slow (simple Apache HTTP requests taking 5 seconds instead of the usual 200ms). We tried optimizing various aspects of the VMs, but the issue remains. Is there a known bug with VMware performance under linux if host IO load is high? Is there a way to fix this? Is this only an issue with Ubuntu systems, or have you seen it on other systems before? Thanks!

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• IT Inventory Tracking

  - by DrStalker

  What is a good tool to keep track of IT inventory? Systems that are installed and running, parts being ordered, that sort of thing. I'd love a central, web based system (preferably something we can customize) but my searching so far has resulted in a lot of dead open source projects that havn't been updated in a few years and poorly created commercial websites that don't do a very good job describing their product. The software doesn't have to be free or open source - a good commercial alternative is fine. It doesn't even need to be a web-based tool, that's just what I thought would be simplist to find and easiest to deploy. The number of assets that it will be tracking will be in the dozens, so it doesn't have to be a super high-end enterprise solution but it does need to do a better job than an excel sheet in a shared folder (which is our current "solution")

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• What hardware makes a good MongoDB Server ? Where to get it ?

  - by João Pinto Jerónimo

  Suppose you're on dell.com right now and you're buying a server to run your MongoDB database for your small startup. You will have to handle literally tens of thousands of writes and reads per minute (but small objects). Would you go for 2 processors ? Invest more on RAM ? I've heard (correct me if I'm wrong) MongoDB handles the most it can on the RAM and then flushes everything to the disk, in that case I should invest on a CPU with a large L2 cache, probably 40GB of RAM and a solid state drive.. right ? Would I be better off with a high end (~$11,309, 2 expensive processors, 96GB of RAM) server or 2x(~$6,419, 2 expensive processors, 12GB of RAM) servers ? Is Dell ok or do you have better sugestions ? (I'm outside the US, on Portugal)

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• How to scale out OpenStreetMap data efficiently

  - by Pierre

  For over a year now, I'm running an in-house PostGIS server filled with OSM data, used for both Mapnik-based tile generation and Nominatim-based geocoding, updated with day replicates. This works pretty well. However, as usage is growing exponentially, I would like to achieve better reliability and performance by adding additional PostgreSQL servers. And I'm kind of lost. Since PostgreSQL doesn't seem to handle replication by itself, I would think about using a piede of middleware like PgPool-II to keep the servers in sync. But I'm afraid it would be nothing but necessary for this usage : very high read-to-write ratio, where all writes are done at the same exact time every day. My questions are simple : What would you do to keep these servers in sync? And, what is done for this at the OpenStreetMap Foundation, MapQuest, Mapbox or CloudMade? Thanks.

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• Which file format to use for simple video editoring

  - by Craig HB

  I've just bought a Sanyo VPC-CG10 camcorder which saves clips as MPEG-4 (specifically, High-Definition 720p MPEG-4 AVC/H.246) I want a simple, cheap way to edit the clips and as, I'm using Windows Vista, I though Windows Movie Maker would be a good choice. But you can't import mp4 files into Windows Movie Maker. I've tried various codecs, but I'm not sure what is the best format to convert to, so that I can edit the files in Windows Movie Maker. AVI, MPG, WMI... I'm not sure what format is best. Should I try to keep the movie clips in MPEG-4 and edit them in that format (and then which editor do I use?) or is there a better format that I should convert to before editing (and what format is that?) ?

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• What can I do to enhance MacBook Pro internal mic sound quality in iMovie?

  - by gaearon

  After using MacBook for two years, I bought 17'' MacBook Pro. I'm pretty happy with it, performance and all, but I also was going to record some music videos for YouTube. I play guitar and sing. However I was extremely disappointed with the sound quality that comes by default. I'm 100% sure my 13'' MacBook mic was much better at recording music and singing. Currently mic can't event handle acoustic guitar, outputting sound you'd think was recorded 5 years ago in ARM format on a Nokia phone on a loud concert. It totally feels like some lame filter is cutting low and high frequencies. I want to know what settings (visible or hidden) in iMovie or Mac OS itself I might want to tweak in order to get my MBP mic record clean sound.

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