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• Is it possible to shrink the size of an HP Smart Array logical drive?

  - by ewwhite

  I know extension is quite possible using the hpacucli utility, but is there an easy way to reduce the size of an existing logical drive (not array)? The controller is a P410i in a ProLiant DL360 G6 server. I'd like to reduce logicaldrive 1 from 72GB to 40GB. => ctrl all show config detail Smart Array P410i in Slot 0 (Embedded) Bus Interface: PCI Slot: 0 Serial Number: 5001438006FD9A50 Cache Serial Number: PAAVP9VYFB8Y RAID 6 (ADG) Status: Disabled Controller Status: OK Chassis Slot: Hardware Revision: Rev C Firmware Version: 3.66 Rebuild Priority: Medium Expand Priority: Medium Surface Scan Delay: 3 secs Surface Scan Mode: Idle Queue Depth: Automatic Monitor and Performance Delay: 60 min Elevator Sort: Enabled Degraded Performance Optimization: Disabled Inconsistency Repair Policy: Disabled Wait for Cache Room: Disabled Surface Analysis Inconsistency Notification: Disabled Post Prompt Timeout: 15 secs Cache Board Present: True Cache Status: OK Accelerator Ratio: 25% Read / 75% Write Drive Write Cache: Enabled Total Cache Size: 512 MB No-Battery Write Cache: Disabled Cache Backup Power Source: Batteries Battery/Capacitor Count: 1 Battery/Capacitor Status: OK SATA NCQ Supported: True Array: A Interface Type: SAS Unused Space: 412476 MB Status: OK Logical Drive: 1 Size: 72.0 GB Fault Tolerance: RAID 1+0 Heads: 255 Sectors Per Track: 32 Cylinders: 18504 Strip Size: 256 KB Status: OK Array Accelerator: Enabled Unique Identifier: 600508B1001C132E4BBDFAA6DAD13DA3 Disk Name: /dev/cciss/c0d0 Mount Points: /boot 196 MB, / 12.0 GB, /usr 8.0 GB, /var 4.0 GB, /tmp 2.0 GB OS Status: LOCKED Logical Drive Label: AE438D6A5001438006FD9A50BE0A Mirror Group 0: physicaldrive 1I:1:1 (port 1I:box 1:bay 1, SAS, 146 GB, OK) physicaldrive 1I:1:2 (port 1I:box 1:bay 2, SAS, 146 GB, OK) Mirror Group 1: physicaldrive 1I:1:3 (port 1I:box 1:bay 3, SAS, 146 GB, OK) physicaldrive 1I:1:4 (port 1I:box 1:bay 4, SAS, 146 GB, OK) SEP (Vendor ID PMCSIERA, Model SRC 8x6G) 250 Device Number: 250 Firmware Version: RevC WWID: 5001438006FD9A5F Vendor ID: PMCSIERA Model: SRC 8x6G

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• Don't let the mouse wake up displays from standby

  - by progo

  I like to put my displays to powersave/standby mode when I leave the computer for a while. It would be ok if it weren't for oversensitive mouse. Sometimes the driver reads in some movement that's not visible to the naked eye (the cursor, that is) and it breaks the power save. It would wait for another 10 minutes before going back to its standby. My workaround is the following script bound to C-S-q: xlock -startCmd 'xset dpms 2 2 2' -endCmd 'xset dpms 600 1200 1300' -mode blank -echokeys -timeelapsed +usefirst By using xset I set the values to 2 seconds each before going to standby. It's not nice, anyway. Sometimes there are cool fortunes that I want to read before typing in the password. I could keep the cursor moving but it's cludgy. (By the way, xlock's option mousemotion doesn't help -- it just hides the cursor but the displays fire up nevertheless.) So the question: is there a way to make displays go standby and stay there until a keyboard key is pressed? I'm running gentoo and recent Xorg, but I hope the answer doesn't have to be distro-specific. Basically the answer can be as simple as how to enable/disable mouse within command line? It think that would do the job if DPMS doesn't know the idea.

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• ATI gpu (video accel, decode, encode, ATI Stream, DXVA)

  - by Shiki

  Okay its a long question title for sure. I'm looking for a new video card (yes,SU is not a page for that, but wait). I've been a loyal NVidia customer ever since, now using a 8600gts. Old but still somewhat good, its a bit slow though. I want an upgrade because 8600gts wont support better vdpau and new features. I checked out the prices and the documents, I would need a GTX260 card. Which costs ..well.. a lot. ATI performs much better for that price. (At least on every test it outperforms GTX260). However, as far as I know there is no gpu accel with ATI. The things you can use is DXVA only, no other method. Could you correct me out there? Will be there a gpu accel for ATI also? Or is there one available? (DXVA is not bad, but kinda slow compared to NVIdia's CUDA.) What about openCL? How does ATI support that? (I'm talking about the 5850 ATI card at the minute, I would buy that instead of the NVidia.)

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• IIS 7.5 Siteminder Does not protect ASP.net MVC requests

  - by HariM

  We are trying to use ASP.Net MVC with Siteminder for Single Sign on. This is on Windows Server 2008 R2 with IIS 7.5. Siteminder Agent version 6QMR6. Problem : Siteminder protects physical files that are exist. And it is not protecting the folder when we try to access a non existed file. It must redirect to login page even if the file doesn't exist when the user is accessing a protected folder. How to configure in IIS 7.5 that Do not verify a file exist, before authentication by siteminder. SiteMinderWebAgent is a Handler(WildCard Script Map) we created using the ISAPI6WebAgent.dll How to Protect ASP.Net MVC Request with Siteminder? (Added this as My previous question did not solve the problem). MVC Request shows up in IIS Log but not in Siteminder log. Update : Microsoft Support says currently IIS7.5, even in earlier versions doesnt support wildcard mappings on any two Isapi Handlers with * wild card. Currently in my case Siteminder has * wildcard and asp.net mvc (handler is aspnet_isapi) has * wildcard to handle the reqeusts. Ordered priority doesnt work in the wild card mappings case with Just *. Did not convinced with the answer but will wait till tomorrow for them to get back.

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• How to Move SMS from iPhone to Mac?

  - by seda16

  SMS is the main form to Communicate with others, you would saved many messages on your iPhone. Well, there're many reasons you need to backup your iPhone sms to the Mac. For example, your family or friends have sent you some important and you want to save them on your iPhone in case you delete them by accident, or you just need to backup your sms for other use. So today let's talk about how to move sms from iPhone to Mac. It would be very easy if you use an app to help you, I always use the iPhone to Mac transfer on Amacsoft to copy sms from iPhone to Mac. Now let me tell you how to use this great app: Step 1:Connect iPhone to Mac First of all, you need to install and launch the iPhone to Mac transfer, then connect your iPhone to Mac. The iPhone to Mac transfer would recognise your iPhone automatically. And all information of your iPhone will be shown on an interface. Step 2:Select sms and Start the Export Now you can see many choice on the left, find "SMS" and click it, all sms on your iPhone will be listed on the right. Select and check those you want to move, then just click "Export" on the top to start the transfer. Wait just a few a minute the transfer will be done. Great! You have finish the transfer now, it's really very easy, right? I believe it won't be a problem if you want to transfer your sms from iPhone to Mac. By the way you can also use this Amacsoft iPhone to Mac transfer to move other kind of files , like photos, songs etc. If you're a windows user, you can use iPhone to PC transfer on this web to move sms from iPhone to your PC just with the same steps, good luck!

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• Sharing large (multi-Gb) files with clients

  - by Tim Long

  I wasn't sure if this was the best place for this question, but I think it is squarely in the realm of the IT admin so that's the reason I put it here. We need to share large files (several Gigabytes) with external clients. We need a simple way of reliably and automatically publishing these files so that clients can then download them. Our organization has Windows desktops and a Windows SBS 2011 server. Sharing from our server is probably suboptimal from the client's perspective, because of the low upstream bandwidth of typical ADSL (around 1 Mbps) - it would take all day (9 hours for a 4Gb file) for the client to download the file. Uploading to a 3rd party sever is good for the client but painful for us, because we then have to deal with a multi-hour upload. Uploading to a third-part server would be less problematic if it could be made reliable and automatic, e.g. something like a Groove/SharePoint Workspace, simply drop the file in and wait for it to synchronize - but Groove has a 2Gb limit which is not big enough. So ideally I'd like a service with the following attributes: Must work for files of at least 5Gb, preferably 10Gb Once the transfer is started, it must be reliable (i.e. not sensitive to disconnections and service outages) and completely automatic Ideally, the sender would get a notification when the transfer completes. Has to work with Windows based systems. Any suggestions?

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• start-stop-daemon can't find executable that's right in front of it

  - by Bart van Heukelom

  root@mountain-lion:/opt/smartfox# ls -lha total 180K drwxr-xr-x 8 root root 4.0K 2012-06-01 14:09 . drwxr-xr-x 4 root root 4.0K 2012-06-01 09:41 .. drwxr-xr-x 8 root root 4.0K 2009-05-17 21:57 lib lrwxrwxrwx 1 root root 22 2012-06-01 09:41 logs -> /var/opt/smartfox/logs -rwxr-xr-x 1 root root 1.4K 2012-06-01 14:28 run.sh root@mountain-lion:/opt/smartfox# cat run.sh #!/bin/bash java -cp "./:./sfsExtensions/:lib/activation.jar:lib/commons-beanutils.jar:lib/commons-collections-3.2.jar:lib/commons-dbcp-1.2.1.jar:lib/commons-lang-2.3.jar:lib/commons-logging-1.1.jar:lib/commons-pool-1.2.jar:lib/concurrent.jar:lib/ezmorph-1.0.3.jar:lib/h2.jar:lib/js.jar:lib/json-lib-2.1-jdk15.jar:lib/json.jar:lib/jsr173_1.0_api.jar:lib/jysfs.jar:lib/jython.jar:lib/nanoxml-2.2.1.jar:lib/wrapper.jar:lib/xbean.jar:lib/javamail/imap.jar:lib/javamail/mailapi.jar:lib/javamail/pop3.jar:lib/javamail/smtp.jar:lib/jetty/jetty.jar:lib/jetty/jetty-util.jar:lib/jetty/jstl.jar:lib/jetty/multipartrequest.jar:lib/jetty/servlet-api.jar:lib/jetty/standard.jar:lib/jsp-2.1/commons-el-1.0.jar:lib/jsp-2.1/core-3.1.0.jar:lib/jsp-2.1/jsp-2.1.jar:lib/jsp-2.1/jsp-api-2.1.jar:lib/jsp-2.1/jstl.jar:lib/jsp-2.1/standard.jar:lib/lsc.jar:lib/commons-io-1.4.jar" \ it.gotoandplay.smartfoxserver.SmartFoxServer > logs/smartfox.out 2>&1 & JAVAPID=$! echo "Started Smartfox. JVM PID = $JAVAPID" trap "echo Stopping Smartfox.; kill $JAVAPID" INT TERM wait echo "Smartfox stopped." root@mountain-lion:/opt/smartfox# start-stop-daemon --start --make-pidfile --pidfile /var/opt/smartfox/smartfox.pid --exec ./run.sh start-stop-daemon: unable to start ./run.sh (No such file or directory) Why can't start-stop-daemon find the script?

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• Nagios NTP, discarding peer

  - by picca

  We're using nagios *check_ntp_time* for monitoring time on our servers. Unfortunately the service is flapping. And reporting a lot of false-positives. It happens everytime for random server in random day time and lasts for ~10-30 minutes. When the problem occurs we get: watch01:~ # /usr/lib/nagios/plugins/check_ntp_time -H lb01 -w 1 -c 2 -v sending request to peer 0 response from peer 0: offset 0.07509887218 sending request to peer 0 response from peer 0: offset 0.07508444786 sending request to peer 0 response from peer 0: offset 0.07499825954 sending request to peer 0 response from peer 0: offset 0.07510817051 discarding peer 0: stratum=0 overall average offset: 0 NTP CRITICAL: Offset unknown| When everything is ok, we get (I used different server to not have to wait): watch01:~ # /usr/lib/nagios/plugins/check_ntp_time -H web02 -w 1 -c 2 -v sending request to peer 0 response from peer 0: offset 0.0002282857895 sending request to peer 0 response from peer 0: offset 0.0002194643021 sending request to peer 0 response from peer 0: offset 0.0002347230911 sending request to peer 0 response from peer 0: offset 0.0002293586731 overall average offset: 0.0002282857895 NTP OK: Offset 0.0002282857895 secs|offset=0.000228s;1.000000;2.000000; We are using: check_ntp_time v1.4.15 (nagios-plugins 1.4.15) on Debian squeeze. Remote ntp daemon is: ntpd - NTP daemon program - Ver. 4.2.4p4 I already found some forums where the problem is described: 1, 2, 3. Every time they edvise to upgrade nagios-plugins, because in version prior to 1.4.13 there was a bug with inserted leap second. But we have already newer version of nagios-plugins.

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• how to cause linux system datetime to run faster than real world datetime?

  - by JamesThomasMoon1979

  Background I want to monitor a running linux system over several days. It's a custom gentoo build and with much custom software on board. This software has ongoing maintenance timers and cron scripts and other clock driven events. I need to verify these scheduled events are working. Problem Waiting for the system to step through daily and weekly activity is a long wait time. And modifying all clock-based timers on the system would be time consuming. Yet, I often want to test a system's end-to-end scheduled activities without waiting a week. Potential Solution Have the linux system under test appear to run through it's daily cycle of activity within just a few hours. My Question for Serverfault Is there a way to cause the system's time to run faster than real world time? My first thought is manipulating the ntp daemon to repeatedly and smoothly increment the clock . Any other ideas? And yes, I know this may have strange side affects. However, the system has no important or time critical interactions with systems outside of itself. And this may be a valuable testing technique.

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• PXE boot -- kernel not found on TFTP server

  - by user70523

  I followed the following link for PXE boot, http://www.howtoforge.com/setting-up-a-pxe-install-server-on-ubuntu-9.10-p3 and I was able to ping the client from the server and also when I booted up the client It is getting the IP address from the server. But later,I got this error PXELinux 3.82 2009-06-09 . . . [other informations] !PXE Entry point found (we hope) at 9D3B:0109 via plan A UNDI code segment at 9D3B len 16C2 UNDI data segment at 933B len A000 Getting cached packet 01 02 03 . . . [other informations] TFTP prefix: Trying to load: pxelinux.cfg/ec5db4c0-74fe-d511-b9e7-3d9235afe5a1 Trying to load: pxelinux.cfg/01-00-17-31-b6-5e-a8 Trying to load: pxelinux.cfg/0A64491E Trying to load: pxelinux.cfg/0A64491 Trying to load: pxelinux.cfg/0A6449 Trying to load: pxelinux.cfg/0A644 Trying to load: pxelinux.cfg/0A64 Trying to load: pxelinux.cfg/0A6 Trying to load: pxelinux.cfg/0A Trying to load: pxelinux.cfg/0 Trying to load: pxelinux.cfg/default Unable to locate configuration file Boot failed: press a key to retry or wait for reset I have put all the files mentioned in the link in tftpboot. Can anyone explain what could be the problem. Thanks in advance

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• Is there any way to customize the Windows 7 taskbar auto-hide behavior? Delay activation? Timer?

  - by calbar

  I'm becoming increasingly frustrated with the way Windows 7 handles showing a hidden taskbar. It's incredibly over-eager to pop out and obscure what I'm really trying to interact with, requiring me to move the mouse away, wait for it to auto-hide again, then resume what I was doing but more deliberately. After closely examining the behavior, it appears that a hidden taskbar "peeks out" from the edge by 2 or 3 pixels, and slowly moving your mouse into this area activates it; you don't even need to touch the edge of the screen. I would love it if there was a way to customize or change this behavior. Ideally, the taskbar would only pop out if you are actively "pushing" the edge of the screen it is hidden on. So activation only occurs once you've reached the screens edge and continue to move the mouse past a customizable threshold. Alternatively, a simple activation delay would suffice as well. So only if the mouse remains in that 2-3 pixel area (a.k.a. on the taskbar) for greater than a customizable amount of time does it pop out again. This would only be a fraction of a second. Often times the cursor simply "careens" off the edge of the screen while trying to focus on something nearby. Anyway, if there are any registry settings or utilities that can achieve either of these effects, that would be great! Thanks for your help.

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• "postgres blocked for more than 120 seconds" - is my db still consistent?

  - by nn4l

  I am using an iscsi volume on an Open-E storage system for several virtual machines running on a XenServer host. Occasionally, when there is a very high disk I/O load on the virtual machines (and therefore also on the storage system), I got this error message on the vm consoles: [2594520.161701] INFO: task kjournald:117 blocked for more than 120 seconds. [2594520.161787] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [2594520.162194] INFO: task flush-202:0:229 blocked for more than 120 seconds. [2594520.162274] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [2594520.162801] INFO: task postgres:1567 blocked for more than 120 seconds. [2594520.162882] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. I understand this error message is caused by the kernel to inform that these processes haven't been run for 120 seconds, most likely because a disk access to the storage system has not yet been processed. But what is the effect on the processes. For example, will the postgres process eventually write its data when the storage system is idle again after a few minutes, so that all data is still consistent? Or will it abort the write, leaving some tables in an inconsistent state? I certainly expect that the former should be the case - if the disk access is slow, postgres (or any other affected process) should just wait as long as it takes. I can live with the application hanging for a few minutes. But if there is a chance for data corruption then any of these errors is really bad news. Please advise what to do here.

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• special case ssh connection lag

  - by Hersheezy

  Setup We have a DMZ and LAN in our office that are connected to the outside with the following setup: +------+ | |------> LAN (normal office router) |Modem | | |------> DMZ (a single machine) +------+ Our internet account is with Comcast and we have 5 status IPs, one of which points to the single machine in the DMZ. Problem ssh connections initiated ANYWHERE EXCEPT the office LAN are really fast. However, from the LAN, there is about a 5 second delay. WTF?? Extra info The DMZ machine is debian 5. Executing a wget to the DMZ has no lag. When executing the following, everything up to HERE IS WHERE THE LAG IS INCURRED executes immediately. ssh -vvvv [email protected] ... debug2: set_newkeys: mode 1 debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug3: Wrote 16 bytes for a total of 1015 debug2: set_newkeys: mode 0 debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug3: Wrote 48 bytes for a total of 1063 debug2: service_accept: ssh-userauth debug1: SSH2_MSG_SERVICE_ACCEPT received debug2: key: /home/shopkins/.ssh/id_rsa (0x22440830) debug2: key: /home/shopkins/.ssh/identity ((nil)) debug2: key: /home/shopkins/.ssh/id_dsa ((nil)) debug3: Wrote 64 bytes for a total of 1127` HERE IS WHERE THE LAG IS INCURRED debug1: Authentications that can continue: publickey,password debug3: start over, passed a different list publickey,password debug3: preferred gssapi-keyex,gssapi-with-mic,gssapi,publickey,keyboard-interactive,password debug3: authmethod_lookup publickey debug3: remaining preferred: keyboard-interactive,password debug3: authmethod_is_enabled publickey debug1: Next authentication method: publickey debug1: Offering public key: /home/shopkins/.ssh/id_rsa debug3: send_pubkey_test debug2: we sent a publickey packet, wait for reply debug3: Wrote 368 bytes for a total of 1495 debug1: Authentications that can continue: publickey,password debug1: Trying private key: /home/shopkins/.ssh/identity debug3: no such identity: /home/shopkins/.ssh/identity debug1: Trying private key: /home/shopkins/.ssh/id_dsa debug3: no such identity: /home/shopkins/.ssh/id_dsa debug2: we did not send a packet, disable method debug3: authmethod_lookup password debug3: remaining preferred: ,password debug3: authmethod_is_enabled password debug1: Next authentication method: password [email protected]'s password:

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• Windows Remote Desktop (RDP/MSTSC) fails with Error Code: 5

  - by BryCoBat

  I have 2 Windows XP boxen: A (running XP SP3) and B (running XP SP2). I'm using Remote Desktop to connect from A to B. When I connect, I get the login screen (which is slow to respond to keyboard/mouse input), and after logging in, I get the following: Fatal Error (Error Code: 5) Your Remote Desktop session is about to end. This computer might be low on virtual memory. Close your other programs, and then try connecting to the remote computer again. If the problem continues, contact your network administrator or technical support. I've seen one way to (sometimes) get in by opening a second RDP session to the same box [1], and if I wait long enough sometimes it will go ahead and log in anyway. Is there something broken/missing on the PC I'm trying to remote in to? Edited in reply to djangofan: There's nobody listed under "Lock pages in memory". When the double login trick works, a glance at Task Manager shows plenty of free memory, 800MB available out of 1.5 GB. (Performance tab, Physical memory) For what it's worth, this happens consistently after a reboot. What sort of exact info would be useful? There's very little remaining installed on that machine that's not Windows + Office... [1] found at http://www.fdcservers.net/vbulletin/archive/index.php/t-1580.html

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• Skip all warning prompts on ACPI shutdown?

  - by N Rahl

  When I issue an ACPI shutdown command to a Windows XP guest machine from the host VM server, I want Windows to shutdown. The problem is, Windows always wants to ask some question or another, rather than just shutting down. I need shutdown to be reliable, no matter what is running or going on, so I can automate shutdowns from the host machine. But I want it to be as graceful as possible, rather than just pulling the plug. Some problems: If a user is logged in, ACPI shutdown causes a box to appear that says, "are you sure you want to shutdown while other users are logged in"? And this prevents shutdown until someone connects to the machine and clicks "yes". In this case, it should try its best to gracefully log out all users, using force if necessary, and then shutdown without promoting. Busy or non-responding programs or programs asking to save data can prevent Windows from shutting down until a user answers a prompt. This should attempt to save data, wait maybe 30 seconds for non-responding programs, but should get aggressive with stubborn programs. "nope, time's up! 3,2,1, Goodbye!" Is there a registry setting that I can change from: ACPI_Shutdown: "Shut down if Windows feels like it" to ACPI_Shutdown: "Just do it. Kill programs, bump users, try to be graceful about it, but when I come back, I expect you to be off." This should respond to the ACPI shutdown command, and not be a script on windows, unless that script is triggered by the ACPI power button. I'm hoping this can be changed with registry options.

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• Keynote presentation in conjunction with other app?

  - by Sören Kuklau

  The short version: I'd like to tell Apple Keynote to switch to a specific app (never leaving full-screen mode) before a certain slide appears, then display that slide as soon as I switch back. Some more details: I'm going to show off five major improvements in an upcoming release of our app. I want one slide highlighting the feature, then one or two showing some details, perhaps with screenshots. After that, so people get a better impression of what I'm talking about, I'll show it off live — to do this, I have to switch to a VM or remote session (since this is a Windows app). Then, I'd like to switch back and go to the next feature. I.e., it would be similar to Apple's "Demo" slides in a cursive font, except not with a different screen, or different computer. It's this switching back and forth that I want to make smooth, just to wow the audience a little. Can I perhaps do a "special" slide in Keynote that tells it to run an AppleScript? Better yet, to switch to an app, and wait until I switch back, and then automatically advance to the next slide?

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• email dropbox between two mutually untrusted sites

  - by user52874

  I've an interesting problem that I thought was straightforward, but turns out I think I'm whistling down the wrong path. It has to do with (shudder) email. I thought I was done with needing to know about email guts ten years ago; I was wrong. Anyway. Simply put, I need to figure out how to relay outgoing email that is not targetted in our domain from our domain into a 'dropbox' in a DMZ, and the Other Guys can retrieve that email from their side of the DMZ and distribute it accordingly, even out to the public internet if need be. There will be no [un-established] traffic coming back to Our side from anywhere; any attempts to do so are dropped with malicious prejudice. Our side is postfix running on scilinux6.1. The DMZ boxes are redhat5.4. The Other Guys are M$ Exchange. The firewalls are set up such that data can go from Our Side downsec to the DMZ, but not upsec from the DMZ into Our Side. Same for the Other Guys. My first thinking was simply to set up postfix on a box in the DMZ and tell them to set up fetchmail or whatever the M$ equivalent is, but then I started remembering that postfix wants to actively relay email onwards, rather than hold it and wait for someone to 'reach in' and retrieve it. I'm not sure I've explained this well, but hopefully it's clear enough that someone can point me in the right direction. I seem to remember having done this before, but it was a looong time ago. thanks!

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• ADSL with RFC 2684 Bridging

  - by Axel Isouard

  My new ADSL line is now enabled, I can finally use my Netgear DM111Pv2 to use to the Internet. My ISP has told me a big surprise : I don't need to use a login and a password to connect to the Internet, then I must use the RFC 2684 bridging mode. It works pretty fine on the ADSL modem's side, but I've spent one night trying to figure out how to connect to the Internet through this modem. I only have a Fonera 2.0n and a computer running Gentoo Linux. I've been trying to use the br2684ctl utility with brctl on my Gentoo, first I've configured my kernel in that way : CONFIG_PPP=y CONFIG_PPP_BSDCOMP=y CONFIG_PPP_DEFLATE=y # CONFIG_PPP_FILTER is not set CONFIG_PPP_MPPE=y # CONFIG_PPP_MULTILINK is not set CONFIG_PPPOATM=y CONFIG_PPPOE=y CONFIG_PPP_ASYNC=y CONFIG_PPP_SYNC_TTY=y [...] CONFIG_ATM=y CONFIG_ATM_CLIP=y CONFIG_ATM_CLIP_NO_ICMP=y CONFIG_ATM_LANE=y CONFIG_ATM_MPOA=y CONFIG_ATM_BR2684=y # CONFIG_ATM_BR2684_IPFILTER is not set And I still get these messages : cirus nais # br2684ctl -b -c 0 -e 0 -a 8.35 br2684ctl[8041]: Interface "nas0" created sucessfully br2684ctl[8041]: Communicating over ATM 0.8.35, encapsulation: LLC br2684ctl[8041]: Fatal: failed to connect on socket; No such device The brctl utility keeps telling me "Invalid argument" each time I try to add the nas0 interface into my bridge, I'm honestly hoping I'm doing wrong. I've been following this README carefully and this tutorial on setting up a PPPoE connection with Gentoo, but the PPPoE interface just tries to start, and nothing special related to PPP happens, I can't see the interface when I do ifconfig. So, I'm asking you if there's something huge I've been missing since the beginning ! Maybe I should wait to buy a new router fully supporting the RFC2684 bridging mode, but I'm more interested in setting up this mode on my Fonera 2.0n and even my Raspberry Pi !

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• Networking problems in VMWare with wireless bridge

  - by Robert Koritnik

  Barebone data: virtualization: VMWare Workstation 6.5 (latest) Host: Windows Server 2008 x64 Guest: Windows Server 2008 x86 Host network adapter: wireless Guest network adapter 1: over Bridge VMNet (automatic) Guest network adapter 2: over Host only VMNet Problem When I surf the net within VM my internet connection just gets stalled (not dropped). It doesn't experience any timeout whatsoever, it just stops downloading/communicating. For instance: I start downloading a file with a browser (IE/FF/CR doesn't matter) and I have to pause/restart download when speed drops to 0. I could wait indefinitelly but connection won't pickup automatically. What did I miss in my network configuration? Update 1 I've tested this in various combinations. This works fine when host is connected via Ethernet. But when connected via Wifi, the connection on the guest works as previously described. It connects fine. It gets a valid IP from DHCP... Everything is cool as long as you don't start doing some intensive network traffic (ie. download a 2MB file) In this case it starts downloading and stops after a while. Speed just drops to 0B/s... Sometimes it picks up back, sometimes it doesn't. Connection still stays and works. I can ping around with no problem.

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• Xvnc4 started from xinetd only displays empty gray X screen

  - by Scott Thomason

  Hi. I'm attempting to setup an Ubuntu 10.10 box so that anyone can connect to port 5900 and be greeted by the gdm login manager. To do so, I added a vnc entry in /etc/services and I am starting Xvnc4 using this xinetd config file: service vnc { protocol = tcp socket_type = stream wait = no user = nobody server = /usr/bin/Xvnc server_args = -geometry 1000x700 -depth 24 -broadcast -inetd -once -securitytypes None } This kind of works...I can start multiple sessions all to port 5900, and I get an X screen. The problem is that I only get an empty, gray X screen with no applications started. I know when you run vncserver from the command line it will look to your ~/.vnc/ directory for your passwd and xstartup files, and I think what I want to do is put "gnome-session" into the xstart file. However, which xstartup file? The running user is "nobody" who obviously doesn't have a ~/.vnc/ directory. I tried a /root/.vnc/xstartup file and a ~scott/.vnc/xstartup file and it doesn't look like they were even read. I changed the xinetd vnc service so that it would "strace" Xvnc4. I looked thru all the "open" lines and didn't get a clue as to what file it was trying to read for xstart. Can anyone help? I just want a terminal server where the user is presented with a gdm login screen.

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• Ubuntu 10.04 Server on Hyper-V Server R2 has sluggish install and command line

  - by Paul Hobart

  I've installed Ubuntu Server 10.04 (64 bit) on a Hyper-V Server R2. I've encountered two issues that I think are related: Very slow install Very slow command prompt The text-mode installer goes through a series of text-based prompt windows. It takes 7-10 seconds for each of these windows to draw on the screen. The end result is that every time I answer a prompt and hit enter I wait for 15 seconds while the screen redraws line by line. I can literally see each line of text being drawn (like the old 300 baud modems days). Once done installing, scrolling on the command line is super slow. For instance, if a simple command, like "ls", causes the screen to scroll, it will scroll very slowly. This happens on a fresh install. The server functions as a LAMP server and an OpenSSH server, but that's it (I don't even have any Virtual Hosts set up yet). AND this only happens on the Virtual Machine console. I access the console through Hyper-V Manager and don't have this problem on any of my other Virtual Machines. Also, this problem does NOT happen when accessing a shell through OpenSSH. How can I improve this performance issue?

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• About Load average in htop, how to decide if it's still doing ok?

  - by Joe Huang

  I use 'htop' to monitor my web server. It's recently quite loaded and the Load average is showing something like this: Load average: 3.10 2.56 1.63 I searched the web about these numbers and I found an article about it: http://blog.scoutapp.com/articles/2009/07/31/understanding-load-averages In the article, it says if I have 2 CPUs, 2.0 means 100% CPU utilization. And my VPS has two CPUs, so what does 3.1 mean? How could it exceed 100% CPU utilization? And from these numbers, does it mean I should be wary about the loading now? But the performance seems totally fine, and this is a managed VPS, the hosting company has not notified me any warning about it. During day time, Load average always show these high numbers... here is another snapshot while writing. Load average: 3.03 2.77 1.97 Load average: 0.41 1.29 1.60 <---- 5 more minutes later So I am wondering how much room left for this site to grow in current configurations? What kind of proactive actions I should take in advance? I don't want to wait until the server bursts. Thanks.

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• How to get an ARM CPU clock speed in Linux?

  - by MiKy

  I have an ARM-based embedded machine based on S3C2416 board. According to the specifications I have available there should be a 533 MHz ARM9 (ARM926EJ-S according to /proc/cpuinfo), however the software running on it "feels" slow, compared to the same software on my Android phone with a 528MHz ARM CPU. /proc/cpuinfo tells me that BogoMIPS is 266.24. I know that I should not trust BogoMIPS regarding performance ("Bogo" = bogus), however I would like to get a measurement on the actual CPU speed. On x86, I could use the rdtsc instruction to get the time stamp counter, wait a second (sleep(1)), read the counter again to get an approximation on the CPU speed, and according to my experience, this value was close enough to the real CPU speed. How can I find the actual CPU speed of given ARM processor? Update I found this simple Pi calculator, which I compiled both for my Android phone and the ARM board. The results are as follows: S3C2416 # cat /proc/cpuinfo Processor : ARM926EJ-S rev 5 (v5l) BogoMIPS : 266.24 Features : swp half fastmult edsp java ... #./pi_arm 10000 Calculation of PI using FFT and AGM, ver. LG1.1.2-MP1.5.2a.memsave ... 8.50 sec. (real time) Android # cat /proc/cpuinfo Processor : ARMv6-compatible processor rev 2 (v6l) BogoMIPS : 527.56 Features : swp half thumb fastmult edsp java # ./pi_android 10000 Calculation of PI using FFT and AGM, ver. LG1.1.2-MP1.5.2a.memsave ... 5.95 sec. (real time) So it seems that the ARM926EJ-S is slower than my Android phone, but not twice slower as I would expect by the BogoMIPS figures. I am still unsure about the clock speed of the ARM9 CPU.

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• Expected IOPS for log writing on PS6000X SAN?

  - by dssz

  Customer is experiencing poor Sybase ASE 15 performance on a PS6000X SAN with 16 X 450GB 10K in RAID-50. The server is a Dell R710 running 2003 server R2 64bit in ESX 4.0.0,256968 I've used sqlio to benchmark the sequential write performance of 4KB blocks on the drive. sqlio -kW -t1 -s600 -dE -o1 -fsequential -b4 -BH -LS sqliotestfile.dat Result is 1900 IOPS. However, when Sybase is running a sustained workload of small inserts SAN HQ shows a consistent 590 IOPS (and 100% 4K write activity). It also shows that the write latency increases to 1.2ms from <1ms. Monitoring and tests in Sybase demonstrate the performance problem is IO related and in particular there is a lot of wait time writing to the log. The SAN indicates that write caching is enabled. What IOPS should the SAN be capable of for 4k sequential write activity? Also, with write caching enabled, shouldn't the controller be batching up the 4K writes into something more efficient? Also, any tips on Sybase on ESX would be appreciated.

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• How do I fix a custom Event Viewer Log that merges automatically with the Application log?

  - by NightOwl888

  I am trying to create a custom event log for a Windows Service on Windows Server 2003. I would like to name the custom log "(ML) Startup Commands". However, when I add a registry key with that name to HKLM\SYSTEM\CurrentControlSet\Services\Eventlog\, it adds a log but shows the exact same events that are in the Application log when looking in the event viewer. If I add a registry key with the name "(ML) Startup Commands 2" to the event log, it shows a blank event log as expected. In fact, any other name will work correctly except for the one I want. I have searched through the registry for other keys with the string "(ML)" and removed all other references to this key name, however I continue to get merged results in the viewer when I create a key with this name. My question is, how can I fix the server so I can create a custom event log with this name that shows only the events from my application, not the events from the default Application event log that is installed with Windows? Update: I rebooted the server and woudn't you know it, the log started acting normally. I got a strange error message in the Application log: The EventSystem sub system is suppressing duplicate event log entries for a duration of 86400 seconds. The suppression timeout can be controlled by a REG_DWORD value named SuppressDuplicateDuration under the following registry key: HKLM\Software\Microsoft\EventSystem\EventLog. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. I can only hope this error doesn't mean the problem will come back after 86400 seconds. I guess I will have to wait and see.

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