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• Internet explorer crashes in VM Player

  - by Vikram

  My internet explorer is hanging whenever I open it, and all the buttons under Tools menu got disabled. and it always says Connecting... but it will never connects. So I debugged and came to know that IE is opening on some user on VMPlayer not as the user logged in, in my case Administrator. When I open it as 'Run as administrator' it opens fine. By the way I logged into my system as administrator not as a normal user, but still it opens with some other user. Can some one solve this issue. Thanks

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• Modern open source NIDS/HIDS and consoles?

  - by MattC

  Years back we set up an IDS solution by placing a tap in front of our exterior firewall, piping all the traffic on our DS1 through an IDS box and then sending the results off to a logging server running ACiD. This was around 2005-ish. I've been asked to revamp the solution and expand on it and looking around, I see that the last release of ACiD was from 2003 and I can't seem to find anything else that seems even remotely up-to-date. While these things may be feature complete, I worry about library conflicts, etc. Can anyone give me suggestions for a Linux/OpenBSD based solution using somewhat modern tools? Just to be clear, I know that Snort is still actively developed. I guess I'm more in the market for a modern open-source web console to consolidate the data. Of course if people have great experiences with IDS' other than Snort I'm happy to hear about it.

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• hung up troubleshooting packet discards

  - by Chris Satola

  I realize my question is generic, but hopefully someone may have some guidance for me. My network consists of Cisco switches. I am seeing a significant amount (upwards of millions of packets per day) transmit drops between two switches. One being a 3750 and the other a 3560. The peak throughput of this link is only upper 400Mbps, so it shouldn't be a bandwidth issue. At this point, I am sort of clueless where to look or what tools I can use to determine what packets are dropping and why. I can setup a SPAN port on that link and wireshark it, but I don't know if that could tell me anything. Does anyone have any suggestions? Thanks in advance.

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• linux/shell: change a file's modify timestamp relatively?

  - by index

  My Canon camera produces files like IMG_1234.JPG and MVI_1234.AVI. It also timestamps those files. Unfortunately during a trip to another timezone several cameras were used, one of which did not have the correct time zone set - meta data mess.. Now I would like to correct this. Proposed algorithm: 1 read file's modify date 2 add delta, i.e. hhmmss (preferred: change timezone) 3 write new timestamp Unless someone knows a tool or a combination of tools that do the trick directly, maybe one could simplify the calculation using epoch time (seconds since ..) and whip up a shell script. Any help appreciated!

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• Microsoft Outlook tips and tricks for improving user experience?

  - by Roee Adler

  I'm one of those heavy Microsoft Outlook users, currently working on the 2007 version. God knows this tool is heavy and may impose problems. I wondered what the Super User crowd has to suggest in order to improve the usage experience. Several suggestions of my own: Always work in cached mode (Tools--Account Settings--Change--Use Cached Exchange Mode) Use Outlook's local archiving capabilities Use Outlook's RSS reader - it's simple and allows offline access to your feeds If you have e-mail subscriptions to magazines, blogs, etc. - create a subdirectory to keep them, and a rule to automatically move them there when they arrive (one rule per subscription, based on the sender e-mail.) You can also share suggestions that require configuration of Exchange Server, for those of us who can make bring them to their IT managers. What are your suggestions? PS: "Use Gmail" is not an accepted answer, some of us don't control what email system we use...

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• How to partition hard drive that has no os installed?

  - by Sarang Patil

  I have 500 GB hard drive. The laptop came with windows 7 pre installed in it. Now as I am installing Windows 8, I have deleted the C drive. So I have 460 GB free unused space where I can install Windows 8. But the Windows 8 installer does not give me any option to partition the 460 GB. The only option available are "Refresh" and "Load driver" or just selecting the 460 GB HDD and installing Windows 8 in it. So how can I partition this 460 GB before I install Windows 8 in it? Edit: Can you suggest me some tools that partition the hard drive and RUN independently (as I do not have any OS installed) from a USB ?

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• f12 and ctrl + f5 not working correctly

  - by ComatoseDuck

  When I came back to my work computer after being away for a week I found out when I try to clear the cache and refresh the page via ctrl + f5 (or just f5) I get the prompt "Type the Internet address of a document, and Internet Explorer will open it for you" with a drop down list in IE. When I try f5 in Chrome and FF it opens the "Open file" dialog box. When I try to f12 for Dev tools in IE, Chrome & FF it opens up the print dialog box. Why is this happening and what can I do to revert it back to the way it was?

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• How to scroll up and look at data in GNU screen

  - by dorelal

  I am using a mac (snow leopard). I am a ruby on rails developer and I watched a screencast on GNU screen and am trying it out. So far I like it. On a window when I start server I get to see the log messages. However I can't seem to scroll up. I do get a scroll bar. However when I use the scroll bar and scroll up I don't see anything. How do people use GNU screen and scroll up?

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• Home Server restore fails cannot find boot device

  - by Tim Heuer

  I am using Windows Home Server to backup my PCs. I recently had a hard drive failure on one of my WHS connected PCs and obtained an identical sized/speed drive for my laptop. I used the latest home server restore CD and did the restore. It said it completed successfully. Upon reboot, it says 'cannot find boot device' and lists all my drives (hard drive, cd, network book) indicating no valid operating system was found. I boot using the Win7 repair disk and while it doesn't see the operating system, it sees the drive and if I go into a command prompt, I can see all my data on the drive. My laptop is Windows 7 64-bit Ultimate. I've tried most everything I can think of. I'm a technical user (software developer) so I'm pretty aware of how things work (or should). I don't feel like I'm missing a simple step here.

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• Does anyone still use Iometer?

  - by Brian T Hannan

  "Iometer is an I/O subsystem measurement and characterization tool for single and clustered systems. It is used as a benchmark and troubleshooting tool and is easily configured to replicate the behaviour of many popular applications." link text Does anyone still use this tool? It seems helpful, but I'm not sure if it's for the thing I am trying to work on. I am trying create a benchmark computer performance test that can be run before and after a Windows Optimization program does its stuff (ex: PC Optimizer Pro or CCleaner). I want to be able to make a quick statement like CCleaner makes the computer run 50% faster or something along those lines. Are there any newer tools like this one?

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• external pop email relay

  - by Pixman

  I want to offer to my customer this possibility : get her pop3 emails from external pop3 server forward the news emails to the new external pop3 server I have find lot of tools for sync imap accounts, or sync pop to imap, but i just want get pop and send to another email adress ! I search a answer for linux ( if i can make a simple daemon for make it's it's good ). Thanks a lot for your help. edit for more detail : For simplify my question, in my use case, it's just want to connect as client via pop protocol ( like a mail app ). And i check news emails, and forward to other email adress. I search about an app or code for create this on linux. In this situation have no access to mailbox dirs, or server configuration ( in this case i have already the answer by create a qmail hook ) Maybe, it's not the good website ? my question must be post on the stackoverflow part ?

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• ESXi Static IP setup with gateway on different subnet

  - by Erik Nelson

  I've got an ESXi server that I'm trying to assign a static IP to. I'm having trouble setting the gateway because (I presume) the gateway is on a different subnet. I've been able to accomplish this task on normal Linux servers by doing the following: route add 172.50.99.254 eth0 route add -net default gw 172.50.99.254 eth0 Now using the GUI config tools for ESXi I've tried setting the following IP: 172.50.5.151 Netmask: 255.255.252.0 Gateway: 172.50.99.254 The gateway does not stick, and when I try to add the gateway manually using esxcfg-route it says it has no route to the gateway IP. How can I get this static IP set correctly? (I don't have any control over the network setup).

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• How do you apply development practices like version control, testing and continuous integration/deployment to system administration?

  - by arex1337

  Imagine you're going to manage a number of servers with a number of different services that's used by a number of people. Now say you want to reconfigure or replace some software on one of those servers. Obviously you don't want to work on servers that are in production. If this was a code change, as a developer, I would make the change on my local development machine, test it locally and commit the change to a version control system. The changes could then be deployed in a staging environment, tested further and finally deployed in a production environment. It would also be easy for me to roll back, if necessary. Generally, or specifically, how do you achieve this in system administration? (The first thing that comes to mind is to use virtual machines and put virtual machine images in version control, but I'm sure there is a lot of literature and clever solutions I'm not presently aware of.)

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• I've created a software RAID on SUSE EL 10 and now I need to monitor it.......

  - by Thomas B.

  I have created a Software Raid using the yast2 GUI on SUSE ES 10/11. The raid works great and it's a raid 5. I have 5 Drives they are cheap 2GB Cases that have 2 - 1TB Drives in each case (Serial ATA Drives) and I connect them in via Esata to the motherboard. The problem I have as this is "cheap" storage when of the the 5 drives goes out on the RAID I seem to have no logs of any issues and it get's harder and harder to write to it until it dies. I use SAMBA to mount the 4TB parition to my PC's in my home on a GIG network. My question is this, are there any good (Free) tools in Linux to monitor a raid or the drives on the raid to detect any problems??? I haven't found any yet and was just wondering if some exist.

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• How to delete empty folders from a given directory in windows with a script

  - by Nicola Peluchetti

  I'm using r.js as a build tool but as of today that tools doesn't give me the ability to delete empty folders in the build dir. I've found these two scripts for /f "usebackq" %%d in ("dir /ad/b/s | sort /R") do rd "%%d" for /f "delims=" %%i in ('dir /s /b /ad ^| sort /r') do rd "%%i">NUL looking around the net but i always get %%i was unexpected at this time. or %%d was unexpected at this time. And i wouldn't know how to tell the script where my directory is. My build script is @echo off where /q r.js || ( echo requirejs node package is not installed. You must install node, npm and then run npm install -g requirejs goto :eof ) node r.js -o app.build.js :end I need to tell the script to remove all empty directories which are located inside ../../js

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• Disable static content caching in IIS 7

  - by Lee Richardson

  I'm a developer having what should be a relatively simple problem in IIS 7 on Windows Server 2008 R2. The problem is that IIS 7 is overzealously caching all static content on the server. It's caching all .html and .js content and not noticing when the content changes on disk unless I iisreset. I've tried the following: Deleting the local cache in my browser (I'm 99% positive this is a server caching issue) In IIS Admin in OutputCaching adding an .html extension and unchecking "User mode caching" and unchecking "Kernel-mode caching" In IIS Admin in OutputCaching adding an .html extension and checking "User mode caching" and selecting the radio for "Prevent all caching" In IIS Admin editing Output Cache Feature settings and unchecking "Enable cache" and "Enable kernel cache under OutputCaching. Running "C:\Windows\System32\inetsrv\config\appcmd set config "SharePoint - 80" -section: system.webServer/caching -enabled:false" Looking through applicationHost.config and disabling anything related to caching I could find. Nothing seems to work. I'm getting very frustrated. Can anyone please help?

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• How to set global PATH on OS X Server 10.6.6?

  - by Adam Lindberg

  I'm running Tomcat on OS X Server 10.6.6 under the normal Web component that comes with the OS. This has worked fine so far, but I need to add some entries to the $PATH environment variable for programs that I want access to from the web server (more specifically, I'm running Hudson under Tomcat which needs access to build tools that I have installed). Tomcat and the Web component seems to run under the user _appserver which has a different $PATH than the administrator account. What's the proper way to add a global entry to the $PATH in OS X Server for the Web component? Preferable it should be done only once so that both the _appserver and Administrator user can access the same $PATH. EDIT: Adding the path to /etc/paths or /etc/paths.d/somefile didn't work. Tomcat and Hudson does still not see those directories.

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• Cannot start Oracle XE 11gR2 Net Listener and Database on Ubuntu 13.04

  - by hydrology

  I have been following the setup step on this article for installing Oracle XE 11g R2 on Ubuntu 13.04. The environment variables PATH, ORACLE_HOME, ORACLE_SID, NLS_LANG ORACLE_BASE have all been set up correctly. simongao:~ 06:16:38$ echo $PATH /usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/home/simongao/adt-bundle-linux-x86_64-20130219/sdk/platform-tools:/u01/app/oracle/product/11.2.0/xe/bin simongao:~ 06:18:36$ echo $ORACLE_HOME /u01/app/oracle/product/11.2.0/xe simongao:~ 06:23:29$ echo $ORACLE_SID XE simongao:~ 06:23:35$ echo $ORACLE_BASE /u01/app/oracle simongao:~ 06:23:37$ sudo echo $LD_LIBRARY_PATH /u01/app/oracle/product/11.2.0/xe/lib simongao:~ 06:23:48$ echo $NLS_LANG /u01/app/oracle/product/11.2.0/xe/bin/nls_lang.sh However, when I try to startup the service, I receive the following error information. simongao:~ 06:18:40$ sudo service oracle-xe start Starting Oracle Net Listener. Starting Oracle Database 11g Express Edition instance. Failed to start Oracle Net Listener using /u01/app/oracle/product/11.2.0/xe/bin/tnslsnr and Oracle Express Database using /u01/app/oracle/product/11.2.0/xe/bin/sqlplus.

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• Backup strategies for linux based file servers

  - by iceman

  I want to know some enterprise-wide backup strategies used for linux based file servers. What are the tools and techniques used when making a backup. for e.g when a backup fails on a machine, it should email the admin about the failure and also a log file. This won't happen incase the HDD fails and the system is completely out of work, but in other cases where a backup didn't take place, the admin should be able to know. What tool/scripts can be used for this particular scenarios?

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• Windows Server 2003/Exchange 2007: How to setup public domain mail.foo.com to route to internal exch

  - by ryan.keeter

  Good day, I have an internal Exchange Server 2007 and a Windows Server 2003 domain. At this point in time I have an external DNS setup (DynDNS 29.95 service) to resolve foo.com to my singular public IP address then it gets routed to external facing site. I would like to know how to setup POP on mail.foo.com and SMTP on smtp.foo.com, and more importantly, what needs to be setup in Exchange server to allow for this to happen. My end state is to send email through smtp.foo.com and receive mail on mail.foo.com. As of now, when I create a user within Exchange the default email address is [email protected], and I would like it to be [email protected]. Thank you and I appreciate the help as I am a .NET developer trying to do sys admin work, and it is MUCH harder than I have ever imagined, my hat is off to all sys admins and IT pros.

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• How can I connect to my Airport Extreme Shared Disk using Windows?

  - by matt ryan

  I have a shared disk attached to my Airport Extreme, which I can connect to remotely in OS X through the finder via command - k, and entering in the proper address: afp://test.dyndns.org:1111 1111 being the port I've reserved for the disk in the AE port mapping. This is such a great feature, but I don't always have access to a Mac. My question is how can I connect to this drive via Windows XP? Please note, that the shared drive is a Drobo FS and formatted to handle both Windows and Mac OS. I've tried mapping a network drive via My Computer - Tools - Map Network Drive and entering: \\test.dyndns.org:1111\Drobo-Name I've also tried Start - Run and entering the same, both with and without the port #.

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• NFSv4 - ACLs not working

  - by alex

  I've setup an NFSv4 server (Debian) and client (Ubuntu/Mythbuntu). It seems that uid username mapping is working nicely out-of-the-box (I get correct usernames on ls -l if the usernames match between the two boxes, even if the uids don't), but ACLs are not working. I've installed nfs4-acl-tools and I can read the ACLs correctly on the client, but they don't get applied. What needs to be done for ACLs to work? To clarify; username mapping works for regular permissions. ACLs are applied using uid/gid (I can even set ACLs by uid and they work).

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• Machine account authentication on Radius server

  - by O.Shevchenko

  My workstation is under Linux. I have an Active Directory domain controller + Radius server on Windows 2008. I can verify user account 'radius-01' using 'radtest' tool: $ radtest -t pap radius-01 password123 195.234.133.32 1812 password123 Sending Access-Request of id 98 to 195.234.73.2 port 1812 User-Name = "radius-01" User-Password = "password123" NAS-IP-Address = 127.0.1.1 NAS-Port = 1812 rad_recv: Access-Accept packet from host 195.234.133.32 port 1812, id=98, length=84 Framed-MTU = 1344 Framed-Protocol = PPP Service-Type = Framed-User Class = 0x537004f00000013700010200ac1c0... I have joined my Linux PC to Active Directory domain ARB-HRK using Samba: [root@shev-arb]# net ads testjoin Join is OK I can dump machine password: [root@shev-arb]# tdbdump /var/lib/samba/private/secrets.tdb { key(34) = "SECRETS/MACHINE_PASSWORD/ARB-HRK" data(15) = "yGgXJsquRnpT0g\00" } How can i authenticate my machine account on Radius server? Do anybody know any tools for this, like: radtest shev-arb$ yGgXJsquRnpT0g 195.234.133.32 1812 password123 (this command fails)

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• Visio 2010 Reverse Engineer Oracle

  - by digitall

  I have used Visio 2007 in the past to reverse engineer Oracle databases to get a flow scheme. I believe all Office 2007 products were x86 as well which is where I suspect my issue currently lies. I have since upgraded to Visio 2010 x64 and when I go to reverse engineer something from Oracle it shows up under Installed Visio Drivers but I can't seem to create a data source using it. My assumption here is it is because Oracle doesn't play nicely with x64 and with Visio being compiled as x64 I don't even get the option to use it. Has anyone done this with Visio 2010 x64 and Oracle yet? Or are there other tools you would recommend to reverse engineer and get a model such as the one generated by Visio?

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• Apache randomly timing out

  - by Zaid

  I've been wrestling with this problem for few days now. Apache works fine. Then suddenly starts timing out. There is nothing in the error log. Few more things: - I've gone so far as to reinstall the box. - The codebase has not been touched in months. - I've done the speech test so I know it's not a bandwidth overload problem - Restart apache does not necessarily fix the issue, even temporarily (only thing that does is random attempts) If you can guide me to tools that can help me figure this out or if you know any specifics I should see, appreciate it.

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