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  • Notebook Operating System with extreme support cycles/security updates

    - by leto
    Hello there, after reading the announcements about Mac OS X "Lion" and Apples political decision, I've had enough. I'm a longtime Apple User since 1992, have always felt at home there, but am trying to switch to alternative Operating System since a year. I've also been working with Unix machines since 2001, so I'm looking in one of the free Unices or a Linux. Since I last looked at the desktop in 2002 choke much has changed, it seems. So I'm lost once more in the war between desktop environments and software. To be honest: I don't care what it's name is, I want to get my job done. Here's what I set me as landmark for an operating system/software to be considered: Has to be atleast four years old Has to supply security updates for current release for atleast a year Production quality stability for the whole desktop environment (!) No f****g commercial stuff that tends to supply me with privacy invading App Store or Cloud space So far I'm running a MacBook from 2007, 4 Gig memory, 250 Gig disk and I need: IMAPs for Mail since 1995 Webbrowser sic Shell Keeping current with Updates/Upgrades with no more than 5 Minutes spent in entering commands (makes it hard for OpenBSD ;-) ) A desktop filemanger would be nice, but is a bonus. What can you suggest as operating system? The one with the longest support cycles and best chance to survive the next 10 years will win a new user, even sending patches when needed :-) Greets

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  • Windows 7 BSOD when changing power plan

    - by dd5
    i have a strange problem. When i want to change the power plan on my laptop from High performance to Balanced, Windows freezes and i get bsod. The power plan settings are all default. Laptop specs: - Intel Core i3 330M/350M - Intel® HM55 Express Chipset - DDR3 1066 MHz SDRAM 8GB - ATI Mobility™ Radeon HD5730 1GB DDR3 VRAM - Intel SSD330 128gb - Windows 7 Home premium I've searched the internets but couldnt find a similar issue. BSOD first started when i installed this SSD and stopped when i've updated the chipset controller driver then started again yesterday when i wanted to change the power settings plan.Minidump file here. Any help with this weird issue appriciated, thanks. Edit: - i've ran Memory diagnostic tool, - Intel SSD diagnostics - and updated the firmware to 3.2.1. Non of these steps worked or shown signs of errors - but still got BSOD when changing power plan settings. After analizing the dump file via osronline.com here a first few lines: CRITICAL_OBJECT_TERMINATION (f4) A process or thread crucial to system operation has unexpectedly exited or been terminated. Several processes and threads are necessary for the operation of the system; when they are terminated (for any reason), the system can no longer function. Arguments: Arg1: 0000000000000003, Process Arg2: fffffa8008661b30, Terminating object Arg3: fffffa8008661e10, Process image file name Arg4: fffff800033de270, Explanatory message (ascii) -- Solution -- Provided by Vinayak: After installing the Intel Rapid storage Technology from MajorGeeks, i didn't experience a BSOD since, thank you :)

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  • Supermicro X8SIL-F with Enermax Modu82+ 625W PSU booting issue

    - by Richard Whitman
    I am assembling a custom PC. The configuration is below: Motherboard: Supermicro X8SIL-F Processor: Intel Xeon 3430 Power Supply: Enermax Modu82+ 625W. Memory: Kingston KVR1333D3LQ8R9S/8GEC 8GBx1 installed in DimmA1 This power switch: Frozen CPU switch When I turn on the PSU, the motherboard tries to start itself before I even push the power switch. The following happens: The CPU fan rotates like once or twice, and then stops. After 1-2 seconds, the CPU fan tries to rotate again and stops after about one or two rotations. Finally, after another 1-2 seconds, it again starts and this time it rotates for about 3-4 seconds before stopping. If I pull out the Power switch, and turn on the PSU, again the MB turns on itself and the following happens: The CPU fan rotates like once or twice, and then stops. After 1-2 seconds, the CPU fan tries to rotate again and stops after about one or two rotations. Finally, after another 1-2 seconds, it again starts and the system boots properly I am sure there is nothing wrong with any of the components, because I have two sets of identical components (2 MBs, 2 CPUs, 2 PSUs, 2 switches and so on). And both of the systems show the same symptoms. Why is the MB booting up by itself? Why does it fail to boot when the Power Switch is installed? Is something wrong with the type of Power Switch I am using? PS: the power switch is installed correctly, I have double checked the MB manual to make sure its connecting the right pins.

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  • Linux server: Dropped packets

    - by Lars
    I see dropped packets using ifconfig on my eth0 interface: eth0 Link encap:Ethernet HWaddr 00:15:17:0d:03:ca inet addr:10.0.1.2 Bcast:10.0.1.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:9000 Metric:1 RX packets:30268348 errors:0 dropped:70721 overruns:0 frame:0 TX packets:133076885 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:8699434077 (8.6 GB) TX bytes:194937313025 (194.9 GB) Interrupt:16 Memory:feae0000-feb00000 When i use ethtool -S i dont see anything wrong: NIC statistics: rx_packets: 30267138 tx_packets: 133074510 rx_bytes: 8699356158 tx_bytes: 194934147340 rx_broadcast: 35296 tx_broadcast: 5435 rx_multicast: 0 tx_multicast: 0 rx_errors: 0 tx_errors: 0 tx_dropped: 0 multicast: 0 collisions: 0 rx_length_errors: 0 rx_over_errors: 0 rx_crc_errors: 0 rx_frame_errors: 0 rx_no_buffer_count: 0 rx_missed_errors: 0 tx_aborted_errors: 0 tx_carrier_errors: 0 tx_fifo_errors: 0 tx_heartbeat_errors: 0 tx_window_errors: 0 tx_abort_late_coll: 0 tx_deferred_ok: 0 tx_single_coll_ok: 0 tx_multi_coll_ok: 0 tx_timeout_count: 0 tx_restart_queue: 0 rx_long_length_errors: 0 rx_short_length_errors: 0 rx_align_errors: 0 tx_tcp_seg_good: 5757001 tx_tcp_seg_failed: 0 rx_flow_control_xon: 8649 rx_flow_control_xoff: 62072 tx_flow_control_xon: 0 tx_flow_control_xoff: 0 rx_long_byte_count: 8699356158 rx_csum_offload_good: 30212111 rx_csum_offload_errors: 0 rx_header_split: 10857552 alloc_rx_buff_failed: 0 tx_smbus: 0 rx_smbus: 0 dropped_smbus: 0 rx_dma_failed: 0 tx_dma_failed: 0 I am running Ubuntu 12.04 with kernel 3.2.0-30-generic #48-Ubuntu SMP I have pinged every device on my internal network for about 24 hours, without packet loss. Also checked my router and my interface to the WAN, also no errors there. Does anyone have any clue?

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  • ESXi 5 Guests will not boot

    - by Adrian
    I have a problem with Guests not booting under VMWare ESXi 5.0 on my IBM x3550M3 server. Note: Investigation eventually determined that problem was with the VMware client on a Lenovo Edge laptop, the only Windows box available in a Linux IT shop. vSphere Client v4 and v5 duplicated behavior on the Lenovo Edge. As indicated in the comment to the accepted answer, replacing the workstation with one using different video was the "fix" for this particular issue. The ESXi host boots just fine. The Client connects just fine. Guests can be configured but do not successfully boot. The initial guest memory consumption jumps up to 560MB and drops down to 40MB after a few seconds. Initial CPU usage is 1 full CPU (3000Ghz per the chart) and immediately drops downm to 29Mhz. Guests do not display any output in the Console tab but show a state of 'Powered On'. No errors in the Events tab. Switching Guest from BIOS to EFI makes no difference. VMs are listed as Version 7 and the behavior is duplicated across all availabled Guest OS flavors. Problem also duplicated when server is booted up in Legacy Only mode. Logs do not contain anything particularly suspicious. Edit: No firewalls, routers, or VLANs in between the client and server. Edit 2: We have tried to Boot Guest into BIOS screen at Next Boot checkbox in the Guest Setting. Was not successful. Edit 3: 500GB datastore with 1 40GB VM on it. Plenty of space. Edit 4: Guests copied from my old ESXi 4 server DO NOT boot on the ESXi 5 system. Initially it complains about too little Video RAM being configured for the default 2500x1600, but it still doesn't work properly even after I bump the Video RAM settings or switch it to Auto-Detect.

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  • what is this kicker process that shows up when i do top?

    - by rashid
    This morning when I came to my office i noticed the machine very slow so I did 'top' at the terminal and i see at least 50 process running and they are "kicker-3.4-reve"!!! I am using RedHat Linux It is taking up memory, how do I get rid of it? How could this happen and how can I avoid it fro happening again? (There is no point in pasting the whole thing but here is a glimpse) 31508 <user> 25 0 87212 8388 7144 S 3 0.1 1:48.34 kicker-3.4-reve 31675 <user> 25 0 87212 8384 7144 S 3 0.1 1:45.74 kicker-3.4-reve 31708 <user> 25 0 87212 8384 7144 S 3 0.1 1:45.04 kicker-3.4-reve 31915 <user> 25 0 87212 8388 7144 S 3 0.1 1:45.74 kicker-3.4-reve 31928 <user> 25 0 87212 8388 7144 S 3 0.1 1:45.74 kicker-3.4-reve 31930 <user> 25 0 87212 8388 7144 S 3 0.1 1:45.74 kicker-3.4-reve 31960 <user> 25 0 87212 8384 7144 S 3 0.1 1:47.14 kicker-3.4-reve 32050 <user> 25 0 87212 8392 7144 S 3 0.1 1:44.24 kicker-3.4-reve 32053 <user> 25 0 87212 8384 7144 S 3 0.1 1:44.24 kicker-3.4-reve 32168 <user> 25 0 87212 8392 7144 S 3 0.1 1:45.34 kicker-3.4-reve

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  • Manipulating IIS7 Configuration with Powershell

    - by John Price
    I'm trying to script some IIS7 setup tasks in PowerShell using the WebAdministration module. I'm good with setting simple properties, but am having some trouble when it comes to dealing with collections of elements in the config files. As an immediate, example, I want to have application pools recycle on a given schedule, and the schedule is a collection of times. When I set this up via the IIS management console, the relevant config section looks like this: <add name="CVSupportAppPool"> <recycling> <periodicRestart memory="1024" time="00:00:00"> <schedule> <clear /> <add value="03:31:00" /> </schedule> </periodicRestart> </recycling> </add> In my script I would like to be able to accomplish the same thing, and I have the following two lines: #clear any pre-existing schedule Clear-WebConfiguration "/system.applicationHost/applicationPools/add[@name='$($appPool.Name)']/recycling/periodicRestart/schedule" #add the new schedule Add-WebConfiguration "/system.applicationHost/applicationPools/add[@name='$($appPool.Name)']/recycling/periodicRestart/schedule" -value (New-TimeSpan -h 3 -m 31) That does almost the same thing, but the resulting XML lacks the <clear/> element that is created with via the GUI, which I believe is necessary to avoid inheriting any default values. This sort of collection (with "add", "remove", and "clear" elements) seems to be fairly standard in the config files, but I can't seem to find any good documentation on how to interact with them consistently.

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  • FreeBSD's ng_nat stopping pass the packets periodically

    - by Korjavin Ivan
    I have FreeBSD router: #uname 9.1-STABLE FreeBSD 9.1-STABLE #0: Fri Jan 18 16:20:47 YEKT 2013 It's a powerful computer with a lot of memory #top -S last pid: 45076; load averages: 1.54, 1.46, 1.29 up 0+21:13:28 19:23:46 84 processes: 2 running, 81 sleeping, 1 waiting CPU: 3.1% user, 0.0% nice, 32.1% system, 5.3% interrupt, 59.5% idle Mem: 390M Active, 1441M Inact, 785M Wired, 799M Buf, 5008M Free Swap: 8192M Total, 8192M Free PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND 11 root 4 155 ki31 0K 64K RUN 3 71.4H 254.83% idle 13 root 4 -16 - 0K 64K sleep 0 101:52 103.03% ng_queue 0 root 14 -92 0 0K 224K - 2 229:44 16.55% kernel 12 root 17 -84 - 0K 272K WAIT 0 213:32 15.67% intr 40228 root 1 22 0 51060K 25084K select 0 20:27 1.66% snmpd 15052 root 1 52 0 104M 22204K select 2 4:36 0.98% mpd5 19 root 1 16 - 0K 16K syncer 1 0:48 0.20% syncer Its tasks are: NAT via ng_nat and PPPoE server via mpd5. Traffic through - about 300Mbit/s, about 40kpps at peak. Pppoe sessions created - 350 max. ng_nat is configured by by the script: /usr/sbin/ngctl -f- <<-EOF mkpeer ipfw: nat %s out name ipfw:%s %s connect ipfw: %s: %s in msg %s: setaliasaddr 1.1.%s There are 20 such ng_nat nodes, with about 150 clients. Sometimes, the traffic via nat stops. When this happens vmstat reports a lot of FAIL counts vmstat -z | grep -i netgraph ITEM SIZE LIMIT USED FREE REQ FAIL SLEEP NetGraph items: 72, 10266, 1, 376,39178965, 0, 0 NetGraph data items: 72, 10266, 9, 10257,2327948820,2131611,4033 I was tried increase net.graph.maxdata=10240 net.graph.maxalloc=10240 but this doesn't work. It's a new problem (1-2 week). The configuration had been working well for about 5 months and no configuration changes were made leading up to the problems starting. In the last few weeks we have slightly increased traffic (from 270 to 300 mbits) and little more pppoe sessions (300-350). Help me please, how to find and solve my problem?

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  • How to log kernel panics without KVM

    - by Spacedust
    My server is crashing and I can't find an answer why. It all started after my datacenter upgrade RAM from 16 GB to 32 GB. I also found such logs in dmesg - they've started to show itself just before the first kernel panic: EXT4-fs error (device md2): ext4_ext_find_extent: bad header/extent in inode #97911179: invalid magic - magic 5f69, entries 28769, max 26988(0), depth 24939(0) EXT4-fs error (device md2): ext4_ext_remove_space: bad header/extent in inode #97911179: invalid magic - magic 5f69, entries 28769, max 26988(0), depth 24939(0) EXT4-fs error (device md2): ext4_mb_generate_buddy: EXT4-fs: group 20974: 8589 blocks in bitmap, 54896 in gd JBD: Spotted dirty metadata buffer (dev = md2, blocknr = 0). There's a risk of filesystem corruption in case of system crash. EXT4-fs error (device md2): ext4_ext_split: inode #97911179: (comm pdflush) eh_entries 28769 != eh_max 26988! EXT4-fs (md2): delayed block allocation failed for inode 97911179 at logical offset 1039 with max blocks 1 with error -5 This should not happen!! Data will be lost EXT4-fs error (device md2): ext4_mb_generate_buddy: EXT4-fs: group 21731: 5 blocks in bitmap, 60762 in gd JBD: Spotted dirty metadata buffer (dev = md2, blocknr = 0). There's a risk of filesystem corruption in case of system crash. My system is CentOS 5.8 64-bit with latest kernel 2.6.18-308.20.1.el5. How can I check what is the reason of kernel panic without having an access to the KVM ? I have told my datacenter admins to check the memory in the server.

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  • Monitoring AWS Systems Behind ElasticBeanStalk

    - by A. Avadis
    So I'm getting a company set up in the Amazon Cloud -- creating IAAS protocol/solutions/standardized implementation, etc while also being the SysAdmin for individual systems, app environments, and day-to-day uptime. One of the biggest issues I'm having is tracking various system/application logs, as well as logging/monitoring/archiving system metrics like memory usage, cpu usage, etc etc In a centralized fashion. E.g. -- Nagios + Urchin. The BIGGEST impediment to my endeavors is the following: The company application is deployed in the form of a Java *.WAR file, uploaded to an Elastic BeanStalk application environment, load balancing and auto-scaling between 3(min) and 10(max) servers, and the EC2's that run the application are fired up and disposed of ad-hoc. That is to say, I can't monitor the individual EC2's for very long because so many are being terminated then auto-provisioned/auto-scaled on the fly -- so I'd constantly be having to "monitor what I'm monitoring", and continuously remove/add EC2 machine addresses to my monitoring lists. IS there some sort of way to use monitoring tools like Zabbix or Nagios to monitor the ElasticBeanStalk, and have it automatically add on new EC2's, and remove terminated/failed EC2's from its monitoring list automatically? Furthermore, is there anything I can do with GrayLog to achieve similar results with the aggregation/centralization of my application logs from multiple EC2 instances into ONE consolidated set of logs/events? If not GrayLog, is there ANYTHING LIKE GrayLog that can automatically detect what EC2 members are being added/removed from the environment, and collect the logs from them automatically? Any and all advice or direction is appreciated. Thanks much, and cheers!!

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  • Which upgrade path for disk IO bound postgres server?

    - by user41679
    Hi all, We currently have a Sun x4270 with 2xquad core Xeon Nehalmen 2.93ghz cores (16 threads), 72 gig of ram and 16 x 10k SAS disks split between the os raid 1, a partition for the Write Ahead Logs which is raid 10 and a partition for the database tables and indexes which is also raid 10, all xfs. I'm currently evaluating which path to go down in terms of upgrades. We'll be sharding the DB at some point soon, but for now I need to focus on hardware upgrades specifically. The machine is not CPU or memory bound at all at the moment, just IOWait is become an issue. The machine is mostly write access as we have a heavy caching layer. We're seeing about 300 write IOPS average on both the database partitions. We don't have any additional storage infrastructure like a Fiber Channel or ISCSI network. Budget isn't too much of a concern, something inline with the size of this server (i.e no $1m IBM machines) Space is ok on the DB side of things, we're running out obviously but there's also some reduction we can do. Additional space would be good though. My current thoughts are either: * ISCSI SAN, possible with 10Gbit network that has solid state acceleration. * FusionIO card / Sun F20 card (will the FusionIO card work in the Sun box? * DAS shelf (something like this http://www.broadberry.co.uk/das-direct-attached-storage-servers/cyberstore-224s-das) which a combination of 15k sas disks and some Intel X25-E drives for DB indexes etc) what would I need to put in the x4270 to add a DAS shelf? I think it's a SAS HBA card, do I have to use Sun's own card or will any PCI Express card work? Anything else??? what would you guys do from your experience? I appreciate it's a lot of questions, but I haven't expanded a DB machine for a number of years and the landscape has changed dramatically since then! Any advice or feedback would be very much appreciated. Let me know if there's anything else I can clarify. Thanks in advance!

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  • When machine is turned on, only the fan runs

    - by Gopal
    Hi, I have an issue slightly similar to this one posted here, http://superuser.com/questions/127016/troubleshooting-monitor-never-turns-on-system-fans-running-dvd-rom-does-not-op My configuration is as follows: EPOX 9NPA+ Ultra motherboard AMD Athlon 64 CPU Corsair 2 x 1GB PC3200 DDR RAM 1 DVD RW drive and 1 CD ROM Drive SATA 250 GB Hard drive 400W Power supply EVGA 256MB graphics card I have had this configuration for about four years. Last month, I started having issues in starting the machine. It wouldn't start when I press the ON button in the front of the case. So I used to pull out the power cord and plug it back in and then switch on in the front, and it used to work fine. And then one fine day, when I plugged in the power cord at the back, even without switching on the power-on button at the front, I saw that the fan at the back was running. So I opened the system. Then I could see that all the fans inside were running. I replaced the power supply. No luck there. Then I replaced the CMOS battery. Again nothing improved. Even when I removed all the cards and memory, I still get one short beep. That's it. Any idea how to proceed on this? Anything else could be checked? I want to confirm if this is a motherboard failure, before proceeding to replace it.

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  • BSOD: PFN_LIST_CORRUPT and IRQ_NOT_LESS_OR_EQUAL

    - by David Lively
    I built a desktop about a year ago that has, until a few weeks ago, been running without a hitch using Windows 7 Ultimate. Recently, the PC started occasionally rebooting with a blue screen indicating a "PFN_LIST_CORRUPT" error. Also, I've seen at least once the error IRQ_NOT_LESS_OR_EQUAL. I seem to remember temporarily connecting an internal DVD burner about the same time this happened. I burned a DVD for another machine and promptly removed the drive. Yesterday, I reformatted the drive and installed Win7 Ultimate x64. During the first install, the PFN_LIST_CORRUPT bluescreen reared its ugly head again. A second install attempt completed with no errors. The fact that this error happened during a clean install leads me to believe that this is not a driver or OS issue. I also ran the memory diagnostic from the Win7 32-bit install DVD. It completed both passes with no errors. Periodically, the screen will flicker, as if explorer or the video are resetting. In the event log, I see a series of 8 or so errors indicating that some services unexpectedly stopped, and were apparently reset. These include an HID service and some others (I don't have a list in front of me). The PC is a Phenom X2 3 Ghz with a 500GB Seagate drive, 4GB of Corsair XMS2 cm2x2048-6400c5c. Anyone know what would suddenly cause a couple of sticks of RAM to go bad?

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  • ExpressCache not working after Windows 8 reinstall on Samsung Series 7 Gamer

    - by Morven
    I have a Samsung Series 7 Gamer laptop which came with Windows 8. After doing a reinstall of Windows, the ExpressCache software is no longer caching. Running "eccmd -info" shows me that the software is present and it has the MSATA drive partition configured. However, it's not actually caching anything. These are the results after having the system booted for days: C:\windows\system32eccmd -info ExpressCache Command Version 1.0.94.0 Copyright¬ 2010-2012 Condusiv Technologies. Date Time: 11/3/2013 12:26:20:263 (JAMETHIEL #36) EC Cache Info ================================================== Mounted : Yes Partition Size : 7.46 GB Reserved Size : 3.00 MB Volume Size : 7.46 GB Total Used Size : 86.50 MB Total Free Space : 7.38 GB Used Data Size : 16.63 MB Used Data Size on Disk : 84.38 MB Tiered Cache Stats ================================================== Memory in use : 32.00 MB Blocks in use : 136 Read Percent : 0.02% Cache Stats ================================================== Cache Volume Drive Number : 1 Total Read Count : 97242 Total Read Size : 4.13 GB Total Cache Read Count : 0 Total Cache Read Size : 595.50 KB Total Write Count : 161546 Total Write Size : 5.89 GB Total Cache Write Count : 0 Total Cache Write Size : 0 Bytes Cache Read Percent : 0.01% Cache Write Percent : 0.00% As you can see on the last two lines, cache read and write percent is nigh on zero. Anyone know where to look next? The only guides I can find deal with ExpressCache not being present or not having a configured drive.

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  • The great Vanishing Act of INetMgr.exe on my Windows 7 x64 system

    - by marc_s
    I'm facing an odd issue with the IIS Manager on Windows 7 (x64). At home, I have Win7 Professional, and when I check my IIS manager icon in the start menu, I see it links to %windir%\system32\inetsrv\InetMgr.exe When I launch this from the command line, it works like a charm. At work, however, I have Windows 7 Enterprise (x64), and when I check my link in the start menu, the entry is exactly the same. If I click on it - it works like a charm. Now if I'd like to launch it from the command line (cmd.exe or TakeCommand), however - the file just isn't there - a DIR %windir%\system32\inetsrv\*.exe shows a number of files, including a "inetmgr6.exe" - but no "inetmgr.exe" - and of course, I can't launch it either :-( Strangely enough, when I look at the directory %windir%\system32\INetSrv in Windows Explorer or Windows Powershell, I SEE the INetMgr.exe file and I can launch it - no problem. What the **** is going on here? How can I find the INetMgr.exe from my classic command line and launch it from there?? UPDATE: ok, some updates. On my work laptop, the INetMgr.exe file appears to really be located in a directory called c:\windows\syswow64\inetsrv (I'm recalling from memory, so don't quote me on the directory name - something like that). I can see this if I search for it in e.g. Powershell or Windows 7 Explorer. However, from a "classic" command line like cmd.exe, it appears to be in c:\windows\system32\inetsrv ..... hmmm.... trouble is - even though I now know where the file really is, I cannot access that directory from my classic command line - not even if I'm running cmd.exe as admin with elevated privileges....... so I know where the file is, but that still doesn't solve my problem :-(

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  • Very high-pitched noise when computer does something intense?

    - by Starkers
    "Intense" is the best word I can use to describe it because I'm not sure what it is, whether it's RAM, GPU or CPU. If I pan the camera in unity: A high pitched noise issues from the computer. The picosecond I start panning the sound starts. Stops the picosecond I stop panning. If I start an infinite loop: 2.0.0p247 :016 > x = 1 => 1 2.0.0p247 :017 > while x < 2 do 2.0.0p247 :018 > puts 'huzzah!' 2.0.0p247 :019?> end huzzah! huzzah! huzzah! An identical high pitched noise can be heard. I don't think it's the GPU due to this simple experiment. Or any monitor-weirdness (although the sound does sound like one of those old CRT monitors if you're old enough to be young when those things were about) The CPU? Or maybe my SSD? It's my first SSD and the first time I've heard this noise. Should I be worried? Regardless, what's causing this sound? I can't think what would cause such high frequency vibrations. I built the PC myself. Not enough heat paste on the CPU? Too much? Just no idea what's going on. Info: CPU Type QuadCore Intel Core i5-3570K, 3800 MHz (38 x 100) Motherboard Name Asus Maximus V Extreme Flash Memory Type Samsung 21nm TLC NAND Video Adapter Asus HD7770

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  • Problem in accessing Windows shared folder on Ubuntu using terminal

    - by vikramtheone
    Hi Guys, Description I have 2 systems with me, one running on Windows(Host) and one on Ubuntu, both on a LAN. On the Windows(Host) I develop software intended for the Linux system and because the Linux system has little external memory, my idea to overcome this is by making the project folder on the Host side a Shared Folder with full access and access it on Ubuntu over the network. To achieve this, I have installed Samba on Ubuntu, when I go to Places -> Network I can see the shared project folder and I simply mount it. A link appears on the desktop. Next, using Nautilus I open the link and I can access the contents of the shared folder. Problem Even though I mount the shared project folder, I don't see it appearing in the /media or the /mnt folder, as a result of this I don't know what path to use to access this folder, from the terminal. For example: When, I mounted my USB stick, as expected, a link for the device appears on the Desktop and I also see a folder in the media folder. So, similarly, a mounted shared folder should have appeared on the /mnt folder, too. Can anyone suggest what I should do now? There are many posts around, but no solid solution for this problem. Help!!! :) Vikram

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  • NTOP gives warnings on startup

    - by FR6
    I just installed ntop 1.4.4 and when I start it, it give me infinite warnings "packet truncated": ... RRD_DEBUG: umask 0066 RRD_DEBUG: DirPerms 0700 THREADMGMT: RRD: Started thread (t2992630672) for data collection THREADMGMT[t2992630672]: RRD: Data collection thread starting [p30923] INIT: Created pid file (/var/run/ntop.pid) THREADMGMT[t3086329552]: ntop RUNSTATE: INITNONROOT(3) Now running as requested user 'nobody' (99:99) Note: Reporting device initally set to 0 [eth0] (merged) THREADMGMT[t3086329552]: ntop RUNSTATE: RUN(4) THREADMGMT[t2982140816]: NPS(1): Started thread for network packet sniffing [eth0] THREADMGMT[t2982140816]: NPS(eth0): pcapDispatch thread starting [p30923] THREADMGMT[t2982140816]: NPS(eth0): pcapDispatch thread running [p30923] THREADMGMT[t3047009168]: SIH: Idle host scan thread running [p30923] THREADMGMT[t3057499024]: SFP: Fingerprint scan thread running [p30923] **WARNING** packet truncated (8814->8232) **WARNING** packet truncated (10274->8232) **WARNING** packet truncated (8814->8232) **WARNING** packet truncated (8814->8232) ... Do I need to configure something? I tried to access the web interface (http://localhost:3000) but it does not work. Note: I'm on CentOS. EDIT: Not sure if it helps but there is my "ifconfig": eth0 Link encap:Ethernet HWaddr 00:16:76:BC:7E:77 inet addr:192.168.0.221 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::216:76ff:febc:7e77/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:15496640 errors:0 dropped:0 overruns:0 frame:0 TX packets:19256813 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:836230629 (797.4 MiB) TX bytes:608496148 (580.3 MiB) Memory:dffe0000-e0000000

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  • How to kill tasks in Windows 7 when even Task Manager won't open or respond?

    - by endolith
    Occasionally one of my computers will get so bogged down that everything locks up, Ctrl+Alt+Del doesn't work, Task Manager won't open, or they work, but are opening so slowly that it will take hours or days to shut down other processes and regain control of the computer, etc. Is there a way to, for instance, force Task Manager to be highest priority so it always opens immediately with Ctrl+Shift+Esc even when some other process/driver is hogging the CPU? Is there some other program that can run in the background and open immediately like this? This question isn't about fixing "underlying problems". No matter how much memory you have, it's still possible for a rogue process to eat it all up and lock up the computer in page fault thrashing, hog the CPU, etc. This question is about how to take back control of the computer when that happens. Basically when these kind of lock-ups happen, I want to open some kind of task manager that pauses every other process and allows me to kill one of them, and then let everything resume so I can save my work, etc. Otherwise my only option is to hold down the power button. Antifreeze is supposed to do exactly what i want, pausing all other applications and starting a task manager to kill the offender, but in my testing, it actually does neither.

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  • Preventing DDOS/SYN attacks (as far as possible)

    - by Godius
    Recently my CENTOS machine has been under many attacks. I run MRTG and the TCP connections graph shoots up like crazy when an attack is going on. It results in the machine becoming inaccessible. My MRTG graph: mrtg graph This is my current /etc/sysctl.conf config # Kernel sysctl configuration file for Red Hat Linux # # For binary values, 0 is disabled, 1 is enabled. See sysctl(8) and # sysctl.conf(5) for more details. # Controls IP packet forwarding net.ipv4.ip_forward = 0 # Controls source route verification net.ipv4.conf.default.rp_filter = 1 # Do not accept source routing net.ipv4.conf.default.accept_source_route = 0 # Controls the System Request debugging functionality of the kernel kernel.sysrq = 1 # Controls whether core dumps will append the PID to the core filename # Useful for debugging multi-threaded applications kernel.core_uses_pid = 1 # Controls the use of TCP syncookies net.ipv4.tcp_syncookies = 1 # Controls the maximum size of a message, in bytes kernel.msgmnb = 65536 # Controls the default maxmimum size of a mesage queue kernel.msgmax = 65536 # Controls the maximum shared segment size, in bytes kernel.shmmax = 68719476736 # Controls the maximum number of shared memory segments, in pages kernel.shmall = 4294967296 net.ipv4.conf.all.rp_filter = 1 net.ipv4.tcp_syncookies = 1 net.ipv4.icmp_echo_ignore_broadcasts = 1 net.ipv4.conf.all.accept_redirects = 0 net.ipv6.conf.all.accept_redirects = 0 net.ipv4.conf.all.send_redirects = 0 net.ipv4.conf.all.accept_source_route = 0 net.ipv4.conf.all.rp_filter = 1 net.ipv4.tcp_max_syn_backlog = 1280 Futher more in my Iptables file (/etc/sysconfig/iptables ) I only have this setup # Generated by iptables-save v1.3.5 on Mon Feb 14 07:07:31 2011 *filter :INPUT ACCEPT [1139630:287215872] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [1222418:555508541] Together with the settings above, there are about 800 IP's blocked via the iptables file by lines like: -A INPUT -s 82.77.119.47 -j DROP These have all been added by my hoster, when Ive emailed them in the past about attacks. Im no expert, but im not sure if this is ideal. My question is, what are some good things to add to the iptables file and possibly other files which would make it harder for the attackers to attack my machine without closing out any non-attacking users. Thanks in advance!

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  • Wireless does not work on Ubuntu 9.04

    - by Yongwei Xing
    Hi all I install the Ubuntu 9.04 my old Lenovo Y520 laptop, the wirless does not work.My Wireless card is Intel Pro/wireless 2100 card. But I can not enable it. My wired card is working well. Does anyone meet it before. the ifconfig output is eth0 Link encap:Ethernet HWaddr 00:0a:e4:5f:6c:30 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:973 errors:0 dropped:0 overruns:0 frame:0 TX packets:1025 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:574701 (574.7 KB) TX bytes:169249 (169.2 KB) Interrupt:10 eth1 Link encap:Ethernet HWaddr 00:0c:f1:58:79:b5 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) Interrupt:10 Base address:0x8000 Memory:d0202000-d0202fff lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:8 errors:0 dropped:0 overruns:0 frame:0 TX packets:8 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:480 (480.0 B) TX bytes:480 (480.0 B) the output of iwconfig is eth1 unassociated ESSID:off/any Nickname:"ipw2100" Mode:Managed Channel=0 Access Point: Not-Associated Bit Rate:0 kb/s Tx-Power:off Retry short limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality:0 Signal level:0 Noise level:0 Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 I have another question. When my OS is 9.04, there is a icon about network connection on the panel at the top. After I upgraded to 9.10, that icon disappeared. How can I get that back? Best Regareds,

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  • Tomcat OutOfMemory after switching JVM

    - by Mathias
    I have a Tomcat6 server running on Debian squeeze there are 4 webapps running on it, and an in-JVM ActiveMQ server. It has been running for about a year with the same memorysettings, with openjdk-6. Everything has worked dandy, no issues at all. Now, for various reasons, i need to try out Sun's JDK. So, I installed sun's jvm with standard apt-get apt-get install sun-java6-bin , and switched using update-java-alternatives -s java-6-sun However, when i start tomcat, i get outofmemory, the server won't even start! If i switch back to openJDK, all works fine again. I haven't had any memory issues on this server before, so it feels strange that the server suddenly won't start with sun's JDK. Anybody have any clue as to why this might happen? Have i missed something? I naturally have set heap sizes etc. in tomcat. Currently running with: -Xms256m -Xmx1024m Which as mentioned works in openSDK, outofmemory in sun-jdk... EDIT: server is 64-bit, openJDK and Sun are 1.6.0, both 64-bit JVMs.

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  • Performance data collection for short-running, ephemeral servers

    - by ErikA
    We're building a medical image processing software stack, currently hosted on various AWS resources. As part of this application, we have a handful of long-running servers (database, load balancers, web application, etc.). Collecting performance data on those servers is quite simple - my go-to- recipe of Nagios (for monitoring/notifications) and Munin (for collection of performance data and displaying trends) will work just fine. However - as part of this application, we are constantly starting up and terminating compute instances on EC2. In typical usage, these compute instances start up, configure themselves, receive a job from a message queue, and then get to work processing that job, which takes anywhere from 15 minutes to over 8 hours. After job completion, these instances get terminated, never to be heard from again. What is a decent strategy for collecting performance data on these short-lived instances? I don't necessarily need monitoring on them - if they fail for whatever reason, our application will detect this and handle re-starting the job on another instance or raising the flag so an administrator can take a look at things. However, it still would be useful to collect information like CPU (user, idle, iowait, etc.), memory usage, network traffic, disk read/write data, etc. In our internal database, we track the instance ID of the machine that runs each job, and it would be quite helpful to be able to look up performance data for a specific instance ID for troubleshooting and profiling. Munin doesn't seem like a great candidate, as it requires maintaining a list of munin nodes in a text file - far from ideal for an environment with a high amount of churn, and for the short amount of time each node will be running, I'd rather keep the full-resolution data indefinitely than have RRD water down the data over time. In the end, my guess is that this will require a monitoring engine that: uses a database (MySQL, SQLite, etc.) for configuration and data storage exposes an API for adding/removing hosts and services Are there other things I should be thinking about when evaluating options? Perhaps I'm over-thinking this, though, and just ought to run sar at 1-minute intervals on these short-lived instances and collect the sar db files prior to termination.

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  • MySQL is killing the server IO.

    - by OneOfOne
    I manage a fairly large/busy vBulletin forums (running on gigenet cloud), the database is ~ 10 GB (~9 milion posts, ~60 queries per second), lately MySQL have been grinding the disk like there's no tomorrow according to iotop and slowing the site. The last idea I can think of is using replication, but I'm not sure how much that would help and worried about database sync. I'm out of ideas, any tips on how to improve the situation would be highly appreciated. Specs : Debian Lenny 64bit ~12Ghz (6 cores) CPU, 7520gb RAM, 160gb disk. Kernel : 2.6.32-4-amd64 mysqld Ver 5.1.54-0.dotdeb.0 for debian-linux-gnu on x86_64 ((Debian)) Other software: vBulletin 3.8.4 memcached 1.2.2 PHP 5.3.5-0.dotdeb.0 (fpm-fcgi) (built: Jan 7 2011 00:07:27) lighttpd/1.4.28 (ssl) - a light and fast webserver PHP and vBulletin are configured to use memcached. MySQL Settings : [mysqld] key_buffer = 128M max_allowed_packet = 16M thread_cache_size = 8 myisam-recover = BACKUP max_connections = 1024 query_cache_limit = 2M query_cache_size = 128M expire_logs_days = 10 max_binlog_size = 100M key_buffer_size = 128M join_buffer_size = 8M tmp_table_size = 16M max_heap_table_size = 16M table_cache = 96 Other : > vmstat procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 9 0 73140 36336 8968 1859160 0 0 42 15 3 2 6 1 89 5 > /etc/init.d/mysql status Threads: 49 Questions: 252139 Slow queries: 164 Opens: 53573 Flush tables: 1 Open tables: 337 Queries per second avg: 61.302. Edit Additional info.

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  • Hardware chose: ASUS Eee Pad Slider or ASUS Eee Pad Transformer for web development?

    - by JamesM
    I was just wondering out of the following Tablets which one seams better to get? I am a web-developer, Always using Unix/Linux/BSD, I want a tablet that has a keyboard. http://gdgt.com/asus/eee/pad/slider/ http://gdgt.com/asus/eee/pad/transformer/ http://www.tweaktown.com/news/18311/asus_eee_pad_slider_transformer_tablets_with_physical_keyboard/index.html I know both are similar, but not sure what one I should get. The Slider seems very nice but again the keyboard is fixed to the tablet unlike the Transformer. P.S: I'm going to use one of the above to showcase my programming work at school, as well as just being used as a cheaper notebook than the $300 Windows.7 locked down notebooks. By Locked down, I mean we pay $300 for them and after 3 years we can do what ever to them, they are Lenovo thinkpad mini-10 and What they have installed is all you get, they don't let us install what ever OS on them. And with the question on both of those links, I think that the transformer would be better but that is only taking in the fact of it being both a tablet and a notebook. What I really care about is power; which one is more powerful? It will be running kFreeBSD-Debian-Squeeze with Linux-Mint theme with several other packages. Though I'm not going to run Windows (which I feel is bloated), I still want power. To help keep my computer from slowing down with cache, I will have a cron.d/hourly script cleaning out the cache memory.

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