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• McAfee Secure Messaging Service / Postini: false positive?

  - by Martin

  Hello, I'm puzzled by this email message that gets quarantined by McAfee Secure Messaging Service (it's based on Postini) for no reason that I can think of. Here are the Postini headers: X-pstn-2strike: clear X-pstn-neptune: 0/0/0.00/0 X-pstn-levels: (S: 0.02932/98.63596 CV:99.9000 FC:95.5390 LC:95.5390 R:95.9108 P:95.9108 M:97.0282 C:98.6951 ) X-pstn-settings: 3 (1.0000:1.0000) s cv gt3 gt2 gt1 r p m c X-pstn-addresses: from [db-null] X-pstn-disposition: quarantine I read the docs (http://www.mcafee-sms.com/webdocs/admin%5Fee%5Fmcafee/wwhelp/wwhimpl/common/html/wwhelp.htm?context=MACAFFHelp&file=header%5Foverview.html#951634) and in short, the x-pstn-settings header tells me that NONE of the filters was triggered, but the x-pstn-levels header tells me that the final score (0.02932) is low enough to classify the email as bulk/spam. Can anyone explain to me why the final score is so low when none of the filters were triggered? Does anyone have any suggestions on how to prevent this from happening? Regards, Martin

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• SQL Server Performance & Latching

  - by Colin

  I have a SQL server 2000 instance which runs several concurrent select statements on a group of 4 or 5 tables. Often the performance of the server during these queries becomes extremely diminished. The querys can take up to 10x as long as other runs of the same query, and it gets to the point where simple operations like getting the table list in object explorer or running sp_who can take several minutes. I've done my best to identify the cause of these issues, and the only performance metric which I've found to be off base is Average Latch Wait time. I've read that over 1 second wait time is bad, and mine ranges anywhere from 20 to 75 seconds under heavy use. So my question is, what could be the issue? Shouldn't SQL be able to handle multiple selects on a single table without losing so much performance? Can anyone suggest somewhere to go from here to investigate this problem? Thanks for the help.

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• Can I monitor active user count on my iis sites?

  - by Dejan.S

  We are having problems with performance on our server that host our websites that the processor gets upp to 90%. I would like to monitor the amount of users active on your sites that are published on the iis. My question, is this possible? is there any software for this? EDIT current (like this second) visitor count on all the active websites on our iis REASON FOR THIS if i can get the visitor amount on the days the CPU is not overloaded and and compare it to the days it is then i atleast know that this CAN be a reason why this is happening and i can take it from there. Otherwise i can focus on the code on the sites, or maybe google crawler is causing this, there are manythings that can cause this you know? for me this is just a simple way of troubleshooting.

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• MacVim + tmux or: The Copy Paste Riddle

  - by Konzepz

  Now this is weird. Copied a chunk of a text from somewhere into clipboard. Ran mvim from a tmux buffer. Opened a file in MacVim. Pasted the text. MacVim results with the error: E353: Nothing to register + Nothing gets pasted. The plot thickens: I try to copy this error -- paste fails. I go over the same steps, this time running MacVim from a regular Terminal window (without tmux) -- Everything is in its right place. Whaa?

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• NETAPP Fragmentation

  - by mdpc

  We all know that once a disk (or storage system for that matter) gets introduced into use, the performance degrades due to fragmentation of files. This seems to be why disk defragmentors are in fairly wide use on Windows boxes. And they do increase the performance substancially. As an aside, I haven't heard of many defragmentors in the Unix/Linux area. Despite the claimed WAFL protections for the NetApp, file fragmentation still will occur, especially with all the sparsely crated VMs. My question is does anybody do any sort of defragmention of such a storage system? Do you notice any measurable degration/improvement of either not doing/doing anything to address this situation? Does anybody do anything about it? If so what? Thanks

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• dual boot preinstalled windows 8 laptop with windows 7

  - by sarathi

  I am having a hard disk in gpt partition style and Windows 8 is pre-installed in uefi mode. While trying to dual boot using usb bootable disk(using rufus,gpt partition style,fat32),it displays "Windows is loading files", then while displaying "Starting Windows" it hangs. So, I tried to install it inside Windows using setup.exe. Everything was running fine, but when it gets self restarted again, it got stuck at "Starting Windows". When restarted in Windows 8, it showed a htm file stating that "Windows cannot be installed on a computer using battery power. If the battery runs out of power during the installation, you might lose data. To continue the installation, plug in the computer's power adapter." I am sure that power adapter is connected. I Googled a lot on this, but I didn't get solution.

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• how to split a pcap file into a set of smaller ones

  - by facha

  I have a huge pcap file (generated by tcpdump). When I try to open it in wireshark, the program just gets unresponsive. Is there a way to split a file in set of smaller ones to open them one by one? The traffic captured in a file is generated by two programs on two servers, so I can't split the file using tcpdump 'host' or 'port' filters. I've also tried linux 'split' command :-) but with no luck. Wireshark wouldn't recognize the format.

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• Multi Thread Rsync Transfer

  - by reefine

  For some reason when running a single rsync command I am getting 1 MB/sec to 2 MB/sec even when I connecting 2 servers both connected to 1 Gbps ports. rsync -v --progress -e ssh /backup/mysqldata/mysql-bin.000199 [email protected]:/secondary/mysqldata/mysqldata/mysql-bin.000199 I have over 800 GB of data to transfer split among 500 or so files all starting with: mysql-bin.000* I've found that running 25-30 rsync simultaneously from seperate SSH windows gets me upwards of 25 MB/sec but it will take me hours to run these all manually. Is there anyway to get the 25 MB/sec from a single rsync command?

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• Monitoring and terminating a hanged process in Linux

  - by Yoav

  Hi, I'm writing a script that runs many simultaneous processes that run the "dig" command. Once in a while (relatively rare, but happens in every run since I run dig many times) the dig command hangs with 0% CPU. Therefore, my script never terminates. I've created a monitor process for each dig command I run, which terminates it after a while, but I was wondering if there isn't a simpler and more efficient way to run a process with a pre-determined "expiration date", i.e. if the process runs more then X seconds it gets a signal that terminates it. Thanks!

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• Can iptables allow Squid to process a request, then redirect the response packets to another port?

  - by Dan H

  I'm trying to test a fancy traffic analyzer app, which I have running on port 8890. My current plan is to let any HTTP request come into Squid, on port 3128, and let it process the request, and then just before it sends the response back, use iptables to redirect the response packets (leaving port 3128) to port 8890. I've researched this all night, and tried many iptables commands, but I'm missing something and my hair is falling out. I thought something like this would work: iptables -t nat -A OUTPUT -p tcp --sport 3128 -j REDIRECT --to-ports 8990 This rule gets created ok, but it never redirects anything. Is this even possible? If so, what iptables incantation could do it? If not, any idea what might work on a single host, given multiple remote browser clients?

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• Booting from a USB drive that was originally a boot drive

  - by daveh551

  When Win 7 went RTM, I upgraded my laptop from XP. But to protect myself against the possibility of having data inaccessible, I got a new disk and put it in the laptop, and took the old (XP) disk and put it in a USB enclosure. I have no trouble accessing the data on the USB drive under Windows 7. But I would like to be able to plug it in, tell the BIOS to boot from the USB drive, and be back on my old machine. The laptop is a Dell Precision M90, and it has a boot from USB option in its boot menu. But when I try to do that, it does read the drive, gets as far as putting up the Windows XP splash screen and starting the boot progress bar, and then reboots. What do I need to do to the old disk now running on USB to allow the machine to boot from it?

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• DB2 users and groups

  - by Arun Srini

  Just want to know everyone's experience and take on managing users/authentication on a multi-node db2 cluster with users groups. I have 17 apps in production (project based company, only 2 online apps), and some 30 users with 7 groups. prodsel - group that has select privilege on all tables produpdt - update group on selective tables (as required by the apps) proddel - delete prodins - insert permissions for the group Now what my company does is when an app uses certain user (called app1user), and needs select and insert privilege on a table, they 1. grant select and insert for prodsel, prodins respectively 2. add the user under those two groups... now this creates one to many relationship between user and privileges, and this app1user also gets select on other tables granted for the prodsel group. I know this is wrong. Before I explain, I need to know how this is done elsewhere. Please share your experiences, even if you use other Databases that uses OS level authentication.

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• SQL Server 2005 Default Backup Plan

  - by tylerl

  I noticed that a newly imported database on SQLServer 2005 had configured itself (without my knowledge) to perform daily backups; but it's not deleting old files and quickly filling up the disk. I don't know how the backup job got configured (maybe that's something that gets transferred when you move a database?) but I'm having trouble modifying it. The backup runs as part of SQL Server Agent job called "Daily Backups". This job runs a package called "(SSIS Packages)\Maintenance Plans\Backup Plan" -- which I can't find. The "Management\Maintenance Plans" area for my server is empty. I imagine I could delete the existing plan and re-create it manually, but I was hoping to just modify what was already there, since all that's missing is deleting old files.

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• Monitoring IIS with SNMP

  - by Shtong

  Hello, I'm trying to monitor IIS using the Windows integrated SNMP service (for versions 2000, 2003 ans 2008 of Windows Server, but i'm doing my experiments on a 2008 R2 box). So far I was able to install the SNMP service, and query mib-2 values without problems. Now, I'm having trouble to monitor IIS informations, as the SNMP service does not seem to know about the .iso.org.dod.internet.private.enterprises.microsoft.software.internetServer OIDs. Walking the entire SNMP tree only gets the mib-2 stuff as well as the names of some services, but that's it. I did't find anything interesting in the service configuration panel. So how do I configure this service to get IIS information, or other WMI data for that matter (I installed the SNMP WMI Provider) ? I can't find any documentation about that !

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• Using SSH to find access to a problematic script in logs of multiple domains

  - by Hanan Cohen

  I run several (~20) sites on a Dreamhost VPS. Lately I max my memory allocation for the VPS and I want to find the problem. I would like to have an SSH script that will scan all the log files of all the domains and show me what object (image, php script etc) gets lots of calls. It will count the calls in each /logs/*/http/access.log, do an descending sort and show me the top 10 across domains. But I don't know how to do that. Can it be done? Can anyone suggest a script that will do that? Thanks. (Cross posted to Stack Overflow)

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• Zyxel p-2602HW-1DA - LAN to WAN routing problems

  - by Garrett

  Hi Got a new router yesterday (due to new internet supplier) and now all my requests for my own server (local lan) is routed directly to the router instead of the server, when using dns. Ex. I have a website www.mysite.org running on my server at home (local lan). From work I can access it via www.mysite.org, which is great. But from home (local lan) my request's for www.mysite.org gets rerouted to the routers web admin interface My last router didn't do this. My new router is a Zyxel P-2602HW-1DA, my old one was a LinkSys WRT-54GC V. 2.0. There's a rather wierd WAN-LAN, WAN-WAN setup interface which I cant really comprehend yet and the docs are rather vague. Have anyone had the same problem and can anyone guide me to a solution, would nice not write the ip address everytime i need to access the server on local lan. :). Kind regards Garrett

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• How many users are "many users"?

  - by kemp

  I need to find a solution for a website which is struggling under load. The site gets ~500 simultaneous connections during peak time, and counts around 42k hits per day. It's a wordpress based site bridged with a vbulletin forum with a lot of contents and a fairly complex structure which makes intensive use of the database. I already implemented code level full page caching (without this the server just crashes), and configured all other caching directives as well as combining css files and the like to limit http requests as much as possible. I need to understand if there is more that can be done via software or if the load is just too much for the server to handle and it needs to be upgraded, because the server goes down occasionally during peak times. Can't access the server now, but it's a dedicated CentOS machine (I think 4GB ram, can't say what CPU) running apache/mysql. So back to the main question: how can I know when the users are just too many?

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• In IIS why do HTTP requests use the host header, and FTP requests do not

  - by Keeno

  So.... In IIS, if you use the in-build FTP you need to combine the FTP host header in the FTP username e.g. www.hello.com|domain/username So, the FTP program gets its "hook" from the username. However, you can connect to the FTP site using www.hello.com:21 over the FTP port. Why then, doesnt the FTP service work the same way as the HTTP service? IIS knows what site to serve back based on the host header after all.... Thanks!

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• How do i find out what's preventing delete requests from working in iis7.5 and iis8?

  - by Simon

  Our site has an MVC Rest API. Recently, both the live servers and my development machine stopped accepting DELETE requests, instead returning a 501 Not Implemented response. On my development machine, which is Windows 7 running IIS7.5, the solution was to add these lines to our Web.config, under system.webServer / handlers: <remove name="ExtensionlessUrlHandler-Integrated-4.0" /> ... <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE" type="System.Web.Handlers.TransferRequestHandler" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode,runtimeVersionv4.0" /> However, this didn't work on any of our live servers; not on Sever 2008 + IIS7.5 and not on Server 2012 + IIS8. There are no verbs set up in Request Filtering, and WebDAV is not installed on any of our live servers. The error page gives no further information, and nothing gets recorded in the logs. How do I find out what's preventing DELETE requests from working in iis7.5 and iis8?

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• Linux Logitech QuickCam Pro 9000 - microphone issues

  - by drahnr

  I got a Logitech Quickcam Pro 9000, the cam itself is working as it honors the UVC spec. This fancy WebCam has a integrated mic which worked some time before but now, it does no more. (Note: I use pulseaudio as it is a USB Mic and I am not really keen on the hassle of ALSA setup) Things I check already are if it gets detected at all: $ lsusb |grep Logi Bus 002 Device 002: ID 046d:0809 Logitech, Inc. Webcam Pro 9000 is muted in alsa-mixer - not the case, volume at 100 pavucontrol shows it too, but no input level bar! On top of that, if I open the gnome3 (fallback mode) audio panel(from the desktop panel), and disabel/reenable it in the hardware tab, it works "for some time"... Any hints? Any ideas? I am really out options for now, and the fact it worked like 6 months ago (perfectly) makes it no better.

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• ngen.exe is constantly using CPU

  - by teedyay

  I recently installed Windows 7. This was a clean install (i.e. not an upgrade from another version of Windows), but I did install a bunch of other programs. All mainstream applications - nothing wacky. Since then, my CPU usage has been constantly at around 50%. Task Manager shows me that ngen.exe is the culprit. It's not a long-running task: I can see that it gets a new PID at least once a second, so I guess something is constantly triggering it. It does it all the time, even when I have no applications running. Has anyone else seen this? How do I find out what's causing this?

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• High Availability Configuration using Heartbeat and Pacemaker

  - by pradeepchhetri

  I have the following setup: I have configured high availability between two load balancers (HAProxy) so that if HAProxy1 get down, the floating IP gets transferred to the other load balancer HAProxy2, hence all the clients will get the response from HAProxy2, which at the back-end is doing LB among the sme two webserver. This is for removing the single point of failure in case of only one HAProxy. Whenever I stops the hearbeat in HAProxy1, the floating IP goes to HAProxy2. But I want to configure such that whenever the process haproxy goes down, the floating IP should get assigned to HAProxy2. Can someone tell me how to implement it ?

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• How can I make all GTK+ apps on Windows pick up themes from the same folder?

  - by Mussnoon

  I have several GTK+ apps installed (pidgin, GIMP, KeepNote et al) and I also have GTK2 themes installed separately in one location. However, picking/selecting a theme from the GTK+ theme selector does not make all the apps use that theme unless I copy and paste all the themes (or at least the one I selected) manually to the "themes" folder for each app (even that doesn't work at times - for KeepNote, for instance). This gets rather tedious and is also a waste of space. Isn't there a way to make all GTK+ apps use the same folder for themes? If yes, how?

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• LDAP :Failed to find add in mandatory or optional attribute list

  - by Manju Prabhu

  I am trying to import an ldif file which has following content- DN: cn=myUser,cn=Users,dc=us,dc=oracle,dc=com objectclass: top objectclass: person objectclass: organizationalPerson objectclass: inetorgperson objectclass: orcluser objectclass: orcluserV2 cn: myUser givenname: myUser mail: myUser orclsamaccountname: myUser sn: myUser uid: myUser userpassword:: somepassword dn: cn=Administrator,cn=Groups,dc=us,dc=oracle,dc=com objectclass: person changetype: modify add: uniquemember uniquemember: cn=myUser,cn=Users,dc=us,dc=oracle,dc=com When I do this, LDAP throws follwing error javax.naming.directory.SchemaViolationException: [LDAP: error code 65 - Failed to find add in mandatory or optional attribute list.]; remaining name 'cn=Administrator,cn=Groups,dc=us,dc=oracle,dc=com' The user gets imported, but it is not added to the group(Group exists). What am i missing ?

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• HP Envy 14, Ubuntu 10.10 and trouble with the graphics cards

  - by Carsten Gehling

  A few days ago I bought a HP Envy 14, containing 2 graphics card: An integrated Intel graphics card, and an ATI HD 5650. I've installed Ubuntu 10.10 32-bit on the machine. Most things work fine out of the box, but the graphics cards are giving me trouble. When booting, I get the message "failed to get i915 symbols, graphics turbo disabled". Then the screen blanks out during the remaining boot period. I am able to get the display working by changing to one of the consoles, then closing and opening the laptop's lid. It seems that Ubuntu gets confused about which card to use. I've read here: http://www.andreas-demmer.de/en/2010/07/18/testbericht-linux-auf-dem-hp-envy-14 that I should be able to turn off one the cards by echoing keywords into /sys/kernel/debug/vgaswitcheroo/switch, but that path is not available on my system. The BIOS does not have any methods to switch of the ATI card. Help anyone? /Carsten

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