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  • yum issue - error msg

    - by Monkey
    i am using oracle linux server 6.2. yum does not work. a manual wget was already used according to https://blogs.oracle.com/OTNGarage/entry/how_to_subscribe_to_the . there is always something about dropbox. yum update firefox Loaded plugins: refresh-packagekit, security http://linux.dropbox.com/fedora/6Server/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404" Trying other mirror. Error: Cannot retrieve repository metadata (repomd.xml) for repository: Dropbox. Please verify its path and try again does anybody know a workaround?

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  • iPhone Remote with iTunes Library via VPN

    - by sudo work
    Alright, so I'm currently behind a network router (not under my control). The router performs NAT and somehow prevents a computer from scanning other nodes. At least, you're unable, in this instance, to locate an iTunes library. You can, however, communicate with a node's open ports if the local IP address is known, as well as the port. I haven't actually tried port scanning a specific IP using nmap or another tool yet. So I've tried one solution to remove the contribution of the router entirely (to verify that it works without the influence of the routers). I set up an access point using my iPhone and tethered my computer (with the library) to it. From here, I was able to pair my library and the iPhone Remote application. Control of the library was normal as well. This solution is not ideal, however, because I am actively using bandwidth with my computer and cannot afford to be tethered to my 3G connection. A viable solution for me is to use a common VPN connection, which I have set up on a Ubuntu (Intrepid) server that is remote. Both my computer and iPhone are able to access the VPN via PPTP. The server is setup with PPTPD as the VPN-server; I'm using IPTables to perform IP masquerading and forwarding traffic. I however, still cannot connect the library to the phone. I can however, see both devices on the VPN subnet (192.168.0.0/24). SSH'ing and such works fine. What settings on the VPN server must I change to get this to work? Also, how can I assign static IP addresses to various PPTP clients based on MAC addresses?

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  • How to deal with DELL support system?

    - by Nishant Kumar
    We have purchased a Dell Optiplex 9010 SSFV for our organization's work. Since the first installation two of the USB keyboard keys were not working properly. I had to press those keys two times simultaneously, on first time keys did not work and for for second time it printed two characters (as it were buffering first character.) Two keys that were not working properly: Hexangrave (Below the ESC key: `) Double Quotes (Left the enter key ") We registered our complaint with DELL and they suggested (with some hard to understand and weird ENGLISH accent) some test and tricks, such as switching to different ports, checking keyboard on different PC, and it worked well with diff. PC(with Windows 7 Home Premium installed). It was clear that it is an OS fault, hence they suggested to re-install OS. Problem began here, we have a project on the run and currently a video editing project setup on our system, so can't re-install system in hurry and also DELL persons were not providing any other solution such as updating keyboard driver, etc. Arguments I am a Software Engg. and don't think it is a feasible solution to re-install entire system for simple problems. This prob is coming since the fresh system installation, so I don't think it will solve the problem. Finally, I had to find solution myself and got it here, now I want to show my disappointment to dell persons or at least tell them that they should improve there support system to not advice to re-install entire system for that simple problems. Notes We have purchased 5 years NEXT business day support from DELL for around 8000 INR (Not for that kind of solutions from DELL). It is Dell India Support System. So can anyone tell me how to tackle dell support system officially, so that they will pay more attention in near future. Thanks

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  • Trouble serving vhosts when trying to set up wildcard subdomains with dnsmasq in local development e

    - by Jeremy Kendall
    I'm trying to get wildcard DNS enabled on my laptop using dnsmasq. I realize that this has been asked and answered more than once on this forum, but I can't get the solution to work for me. Steps taken so far: Installed dnsmasq Set address=/example.dev/127.0.0.1 in dnsmasq.conf Set listen-address=127.0.0.1 in dnsmasq.conf Ensured nameserver 127.0.0.1 is in /etc/resolv.conf Set prepend domain-name-servers 127.0.0.1; in /etc/dhcp3/dhclient.conf Created a vhost for example.dev Restarted apache and dnsmasq Note: example.dev is not set in /etc/hosts My vhost for example.dev <VirtualHost *:80> ServerName example.dev DocumentRoot /home/jkendall/public_html/example/public ServerAlias *.example.dev # This should be omitted in the production environment SetEnv APPLICATION_ENV development <Directory /home/jkendall/public_html/example/public> DirectoryIndex index.php AllowOverride All Order allow,deny Allow from all </Directory> </VirtualHost> The setup above will server example.dev locally without any problem. It will also serve test.example.dev, but test.example.dev returns the default apache "It works!" index.html from /var/www rather than my index.php in /home/jkendall/public_html/example/public. The solution in this Server Fault thread suggests that address=/.example.dev/127.0.0.1 would resolve my problem, but when I try to use that solution, restarting dnsmasq results in a failure with the error message dnsmasq: error at line 62 of /etc/dnsmasq.conf For grins, I moved my project over to /var/www/example and modified the vhost appropriately. I got the same result as described above. At this point I'm not sure what other steps I can take to resolve the issue. Thoughts?

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  • Viewing a large-resolution VNC server through a small-resolution viewer in Ubuntu

    - by Madiyaan Damha
    I have two Ubuntu computers, one with a large screen resolution (1920x1600) that is running the default Ubuntu VNC server. I have another computer that has a resolution of about 1200x1024 that I use to VNC into the server using the default Ubuntu VNC viewer). Now everything works fine except there are annoying scrollbars in the viewer because the server's desktop resolution is so much higher than the viewer's. Is there a way to: Scale the server's desktop down to the viewer's resolution. I know there will be a loss of image quality, but I am willing to try it out. This should be something like how Windows Media Player or VLC scales down the window (and does some interpolation of pixels). Automatically shrink the resolution of the server to the client's when I connect and scale the resolution back when I disconnect. This seems like a less attractive solution. Any other solution that gurus out there use? I am sure someone has experienced this before (annoying scroll bars) so there must be a solution out there.

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  • Nokia 5800 v50, getting "Invalid server name" with ad-hoc wlan with Windows 7

    - by Krunal
    After upgrading to v50 firmware in my Nokia 5800 xpress music phone. I am not able to connect to ad-hoc wlan network in my laptop(Windows 7 OS). I have a dialup internet connection and created wireless ad-hoc network to access the internet in my phone. But I am getting "invalid server name" in the phone and my wireless network access type in Windows 7 shows "no internet access". I am able to connect to wlan infrastructure network using 5800 in my office. So my phone is working with wlan and I m able to access internet on it. BUT The problem is "dial up with ICS enabled" and "AD-HOC wlan network" in Windows 7. Can anyone give some solution on it. Or can you provide a guide/tutorial to connect 5800 with adhoc network and dialup internet in Windows 7. System: Windows 7 Dial up internet connection with ICS enabled. Ad-Hoc wireless network with WEP Nokia 5800 Xpress Music phone Note: I have read other posts also and tried their solutions but didn't worked for me. the first solution is to bridge the network and access it. but how can I bridge the dialup and wlan netwok? second solution is manually configure IP and DNS addresses in phone. But what should I add as IP and DNS as my dial up and adhoc network have automatic addresses.

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  • Add bookmarks to Delicious and Google Bookmarks at the same time

    - by BrianH
    I have used delicious.com (or back then, del.icio.us) to store my bookmarks for a long time now, and I love it. I was looking through some of my Google services, and realized they have a bookmarking service that integrates with your Google searches (I thought they had a bookmarking service before, but it went away? Maybe not). I like delicious just fine - I'm not interested in leaving. But I also like how my Google bookmarks are highlighted (and I'm guessing, brought to the top) in my search results so I can easily tell if I've bookmarked a site (kind of like the "promote up" feature). I can't even count the number of times I search for a site only to find I've been there months or years ago. If sites I've bookmarked in the past are highlighted in my search results, it makes it easier to pick which search result to go to. My question is around bookmarking tools: Is there a bookmarklet or Firefox addon that will let me save a bookmark to multiple services at the same time, in this case, Google and Delicious? Or maybe a service to sync my delicious bookmarks to Google bookmarks on a regular basis? I have used the Delicious addon since the beginning - it would just be nice to add a bookmark to multiple services with 1 addon. For that matter, it would be nice to add Evernote into the mix - click 1 button to save the page to Evernote, and bookmark the page in Google and delicious. EDIT on 7/30/2009 - Summary: A proposed solution is to use the Delicious addon and the GMarks addon to keep the 2 services in sync. I was not able to get the 2 addons to keep everything in sync, so it was also suggest to use the Google Toolbar with the Delicious addon to keep everything in sync. I personally have reservations with letting Google know about every single site I visit, I believe this solution will work, so I am accepting it as the answer. I still wish there was a solution that would let you post a bookmark/page to multiple services at the same time (delicious, google, evernote, digg, diigo, etc.). Thanks!

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  • Troubleshooting inconsistent ODBC connectivity

    - by Chris
    I'm attempting to integrate UPS WorldShip with a SQL Server 2008 R2 database but the connection is very inconsistent. UPS claims this is a DSN/Windows problem and I have not been able to convince them otherwise. The integration is quite simple: my shipping guy clicks a button which opens a form where he enters an order #. After pressing enter the shipping information will be pulled from the database for that order #. The problem is that WorldShip often times thinks the DSN does not exist. However, I am able to open WorldShip's customization tool and browse all the tables and fields in the database my DSN is connected to which means at the very least my DSN does, in fact, exist. The reason this has been so difficult to troubleshoot is because there is no consistency to the problem and I'm not able to reliably repeat any behavior. That is to say that rebooting the PC doesn't cause the connection to break and opening the integration tool and viewing the tables and fields doesn't cause the integration button to work. Is there some way for me to monitor this connection from the SQL server or get any clues as to why it fails? As requested by TallTed here is a sample of the trace file I created. After a mere 5 hours the trace file was over 130MB so there's no way I could provide it in its entirety. WorldShipTD d94-690 EXIT SQLSetStmtAttrW with return code -1 (SQL_ERROR) SQLHSTMT 0x0C6632A0 SQLINTEGER 1227 <unknown> SQLPOINTER [Unknown attribute 1227] SQLINTEGER -5 DIAG [IM006] [Microsoft][ODBC Driver Manager] Driver's SQLSetConnectAttr failed (0) WorldShipTD d94-690 ENTER SQLAllocHandle SQLSMALLINT 3 <SQL_HANDLE_STMT> SQLHANDLE 0x0C662FC0 SQLHANDLE * 0x03EBCE38 WorldShipTD d94-690 EXIT SQLAllocHandle with return code 0 (SQL_SUCCESS) SQLSMALLINT 3 <SQL_HANDLE_STMT> SQLHANDLE 0x0C662FC0 SQLHANDLE * 0x03EBCE38 ( 0x0C6632A0) WorldShipTD d94-690 ENTER SQLSetStmtAttrW SQLHSTMT 0x0C6632A0 SQLINTEGER 0 <SQL_ATTR_QUERY_TIMEOUT> SQLPOINTER 30 SQLINTEGER -5 WorldShipTD d94-690 EXIT SQLSetStmtAttrW with return code -1 (SQL_ERROR) SQLHSTMT 0x0C6632A0 SQLINTEGER 0 <SQL_ATTR_QUERY_TIMEOUT> SQLPOINTER 30 SQLINTEGER -5 DIAG [HYC00] [Microsoft][ODBC Microsoft Access Driver]Optional feature not implemented (106) WorldShipTD d94-690 ENTER SQLGetDiagFieldW SQLSMALLINT 3 SQLHANDLE 0x0C6632A0 SQLSMALLINT 1 SQLSMALLINT 4 SQLPOINTER 0x00520708 SQLSMALLINT 12 SQLSMALLINT * 0x0028E2A8 WorldShipTD d94-690 EXIT SQLGetDiagFieldW with return code 0 (SQL_SUCCESS) SQLSMALLINT 3 SQLHANDLE 0x0C6632A0 SQLSMALLINT 1 SQLSMALLINT 4 SQLPOINTER 0x00520708 SQLSMALLINT 12 SQLSMALLINT * 0x0028E2A8 (10) WorldShipTD d94-690 ENTER SQLGetInfoW HDBC 0x0C662FC0 UWORD 77 <SQL_DRIVER_ODBC_VER> PTR 0x03EBCEDC SWORD 100 SWORD * 0x0028E290 WorldShipTD d94-690 EXIT SQLGetInfoW with return code 0 (SQL_SUCCESS) HDBC 0x0C662FC0 UWORD 77 <SQL_DRIVER_ODBC_VER> PTR 0x03EBCEDC [ 10] "03.51" SWORD 100 SWORD * 0x0028E290 (10) WorldShipTD d94-690 ENTER SQLSetStmtAttrW SQLHSTMT 0x0C6632A0 SQLINTEGER 1228 <unknown> SQLPOINTER [Unknown attribute 1228] SQLINTEGER -5 WorldShipTD d94-690 EXIT SQLSetStmtAttrW with return code -1 (SQL_ERROR) SQLHSTMT 0x0C6632A0 SQLINTEGER 1228 <unknown> SQLPOINTER [Unknown attribute 1228] SQLINTEGER -5 DIAG [HY092] [Microsoft][ODBC Microsoft Access Driver]Invalid attribute/option identifier (86) WorldShipTD d94-690 ENTER SQLGetDiagFieldW SQLSMALLINT 3 SQLHANDLE 0x0C6632A0 SQLSMALLINT 1 SQLSMALLINT 4 SQLPOINTER 0x00520708 SQLSMALLINT 12 SQLSMALLINT * 0x0028E2A8 WorldShipTD d94-690 EXIT SQLGetDiagFieldW with return code 0 (SQL_SUCCESS) SQLSMALLINT 3 SQLHANDLE 0x0C6632A0 SQLSMALLINT 1 SQLSMALLINT 4 SQLPOINTER 0x00520708 SQLSMALLINT 12 SQLSMALLINT * 0x0028E2A8 (10) WorldShipTD d94-690 ENTER SQLSetStmtAttrW SQLHSTMT 0x0C6632A0 SQLINTEGER 1227 <unknown> SQLPOINTER [Unknown attribute 1227] SQLINTEGER -5 WorldShipTD d94-690 EXIT SQLSetStmtAttrW with return code -1 (SQL_ERROR) SQLHSTMT 0x0C6632A0 SQLINTEGER 1227 <unknown> SQLPOINTER [Unknown attribute 1227] SQLINTEGER -5 DIAG [HY092] [Microsoft][ODBC Microsoft Access Driver]Invalid attribute/option identifier (86) WorldShipTD d94-690 ENTER SQLGetDiagFieldW SQLSMALLINT 3 SQLHANDLE 0x0C6632A0 SQLSMALLINT 1 SQLSMALLINT 4 SQLPOINTER 0x00520708 SQLSMALLINT 12 SQLSMALLINT * 0x0028E2A8 WorldShipTD d94-690 EXIT SQLGetDiagFieldW with return code 0 (SQL_SUCCESS) SQLSMALLINT 3 SQLHANDLE 0x0C6632A0 SQLSMALLINT 1 SQLSMALLINT 4 SQLPOINTER 0x00520708 SQLSMALLINT 12 SQLSMALLINT * 0x0028E2A8 (10)

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  • How to tackle dell support system? [closed]

    - by Nishant Kumar
    We have purchased a Dell Optiplex 9010 SSFV for our organization's work. Since the first installation two of the USB keyboard keys were not working properly. I had to press those keys two times simultaneously, on first time keys did not work and for for second time it printed two characters (as it were buffering first character.) Two keys that were not working properly: Hexangrave (Below the ESC key: `) Double Quotes (Left the enter key ") We registered our complaint with DELL and they suggested (with some hard to understand and weird ENGLISH accent) some test and tricks, such as switching to different ports, checking keyboard on different PC, and it worked well with diff. PC(with Windows 7 Home Premium installed). It was clear that it is an OS fault, hence they suggested to re-install OS. Problem began here, we have a project on the run and currently a video editing project setup on our system, so can't re-install system in hurry and also DELL persons were not providing any other solution such as updating keyboard driver, etc. Arguments I am a Software Engg. and don't think it is a feasible solution to re-install entire system for simple problems. This prob is coming since the fresh system installation, so I don't think it will solve the problem. Finally, I had to find solution myself and got it here, now I want to show my disappointment to dell persons or at least tell them that they should improve there support system to not advice to re-install entire system for that simple problems. Notes We have purchased 5 years NEXT business day support from DELL for around 8000 INR (Not for that kind of solutions from DELL). So can anyone tell me how to tackle dell support system officially, so that they will pay more attention in near future. Thanks

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  • kernel: journal commit I/O error

    - by jasondewitt
    I am having some problems with a Dell 1950 server. I am installing RHEL 4.6 along with Oracle and some other software on here. I am randomly getting an error message saying "kernel: journal commit I/O error" on my ssh session and on the monitor I have hooked up to the server I see an error scrolling by that says "EXT3-fs error (device sda5) in start_transaction: Journal has aborted." It has happened several times but never at the same point during the install. Actually, this last time the system was up and running and I was just trying to import a database into oracle. This has happened on several hard drives, so I'm pretty sure that is not the problem. This makes me think the raid controller is going bad. What do you guys think? ** UPDATE ** Pretty sure it was a bad hard drive. I threw another drive in the server and it's been running for about 48 hours with out problems.

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  • Development on Windows 7; Web server on Linux - How to share Apache web root?

    - by TheKeys
    I've got a LAMP server that I want to use as a local web server. I've got a Windows 7 machine that I want to use as my development machine. The machines will be on the same LAN (or the Windows box will be VPNed into the LAN). My questions is, what is the best way of sharing the web root of the LAMP server so that I can edit the files on the remote Windows 7 machine and how do I go about configuring this on the Linux machine? (Fedora 16) I would like the solution to be as easy to use as possible with preferably no extra steps required to save/edit/upload files from my IDE on my Windows 7 machine. I'm thinking either a Samba or NFS share are the way to go but I'm concerned I'm going to run into issues with permissions and unix/windows file handling. Is one better than ther other for my use case or is there a better alternative solution? I'm currently using Windows 7 Professional which doesn't have NFS support but would upgrade to Ultimate which does have NFS support if it's the best solution.

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  • Linux Fiber Channel Host Setup Basic

    - by Jim
    I've been googling for about 4 hours now with no luck. I am trying to setup a Linux server running Oracle Server 6.3 as a Fiber Channel host. And then connect it to a Dell Compellent Fibre Channel Host contain a 500GB Volume. The Oracle server itself contains two Brocade 815 FC HBAs. I've discovered their WWN(I think) via cat /sys/class/fc_host/host1/port_name 0x100000051efc3d85 cat /sys/class/fc_host/host2/port_name 0x100000051efc3d9f The next part is where I am at a loss. I've used iSCSI before...is FC the same deal where you have an initiator and a target? If so where do I specific that in linux? I'm also new to Fiber Channel as a protocol, so i am unsure what is needed to make a transaction? WWN and port ID? Similar to IP:Port combination in the Ethernet world. I've read alot regarding using systool, multipath, fc_transport commands, however none of these is recognized as a valid command from Oracle Server 6.3 Appreciate the guidance and assistance. I installed sccsi-target-utils and can now run rescan-scsi-bus and sg_map -x. rescan-scsi-bus.sh -l -w -r Host adapter 0 (megaraid_sas) found. Host adapter 1 ((null)) found. Host adapter 2 ((null)) found. Host adapter 3 (ata_piix) found. Host adapter 4 (ata_piix) found. Scanning SCSI subsystem for new devices and remove devices that have disappeared Scanning host 0 for SCSI target IDs 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15, LUNs 0 1 2 3 4 5 6 7 Scanning for device 0 2 0 0 .... OLD: Host: scsi0 Channel: 02 Id: 00 Lun: 00 Vendor: DELL Model: PERC H700 Rev: 2.30 Type: Direct-Access ANSI SCSI revision: 05 Scanning for device 0 2 1 0 ... OLD: Host: scsi0 Channel: 02 Id: 01 Lun: 00 Vendor: DELL Model: PERC H700 Rev: 2.30 Type: Direct-Access ANSI SCSI revision: 05 Scanning host 1 for all SCSI target IDs, LUNs 0 1 2 3 4 5 6 7 Scanning for device 1 0 3 1 ... OLD: Host: scsi1 Channel: 00 Id: 03 Lun: 01 Vendor: COMPELNT Model: Compellent Vol Rev: 0505 Type: Direct-Access ANSI SCSI revision: 05 Scanning host 2 for all SCSI target IDs, LUNs 0 1 2 3 4 5 6 7 Scanning host 3 for all SCSI target IDs, LUNs 0 1 2 3 4 5 6 7 Scanning for device 3 0 0 0 ... REM: Host: scsi3 Channel: 00 Id: 00 Lun: 00 DEL: Vendor: TEAC Model: DVD-ROM DV-28SW Rev: R.2A Type: CD-ROM ANSI SCSI revision: 05 Scanning host 4 channels 0 for SCSI target IDs 0, LUNs 0 1 2 3 4 5 6 7 0 new device(s) found. 1 device(s) removed. and sg_map -x /dev/sg0 0 0 32 0 13 /dev/sg1 0 2 0 0 0 /dev/sda /dev/sg2 0 2 1 0 0 /dev/sdb /dev/sg4 1 0 3 1 0 /dev/sdc I'm not sure what this all means...

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  • Can one really fry a monitor by setting the wrong HorizSync and VertRefresh?

    - by rumtscho
    I've encountered this problem on several different systems with several different monitors: a monitor functions perfectly under Windows. I install a Linux and the max resolution is at some impossibly low value, mostly 640x480, changing it in Xorg.conf doesn't work. The X.org log file then shows that the driver cannot determine the correct refresh rate for the monitor, so it ignores everything in Xorg.conf and just loads in some default minimalistic mode. Googling the problem leads to an easy solution: set the HorizSync and VertRefresh in Xorg.conf, and everything works. The problem seems to be a common one, and I've seen dozens of results recommending the solution. Each of them contains the warning that you should use the value ranges provided with the monitor. Because if you don't, and your video card sends a signal with the wrong refresh rate, this can damage your monitor. Of course, you don't have a user manual for your monitor any more. If you are lucky to find one on the attic or on the net, it doesn't contain any information about the supported refresh rate. So you just type in the value suggested in the solution description, which varies wildly depending on your source, and cross your fingers. You restart, and... ... you've set the wrong values. So the monitor shows a short message like "input signal out of range", and you do a hard restart, repair your Xorg.conf in recovery mode, and everything is fine, including your monitor. So does this warning reflect a real possibility, or is it just a geeky urban legend? Or is it something which used to happen in the past, before manufacturers started protecting the monitors against it? Is it technically possible with every monitor technology, or is it maybe something which can only happen to a CRT? If you think that it's true, why? Have you ever witnessed a monitor die from the wrong refresh config, or have you read of it in a reputable source?

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  • Why can't I grant exec on dbms_lock.sleep() OR create a procedure using it (but I can run it fine on its own)

    - by Richard Green
    I am trying to write a small bit of PL/SQL that has a non-CPU burning sleep in it. The following works in sqldeveloper begin dbms_lock.sleep(5); end; BUT (as the same user), I can't do the following: create or replace procedure sleep(seconds in number) is begin dbms_lock.sleep(seconds); end; without the error "identifer "DBMS_LOCK" must be declared... Funny as I could run it without a procedure. Just as strange, when I log in as a DBA, I can run the command grant exec on dbms_lock to public; and I get ERROR at line 1: ORA-00990: missing or invalid privilege This is oracle version "Oracle Database 11g Express Edition Release 11.2.0.2.0 - 64bit Production"

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  • Windows 7 - User profile corrupted on standby/hibernate

    - by Dogbert
    I have a friend who uses Windows 7 for her home PC. She has a RAID1 array that is using up-to-date Intel Matrix storage drivers, and the entire array is backed up to a separate internal SATA HDD via Acronis True Image every night. Over the weekends, she lets her machine go into suspend after 4 hours of inactivity, and then later into hibernation after 6 hours of inactivity. Her Acronis backup system does nightly incremental backups, and full backups every Saturday night. She also has AVG Free Antivirus installed which does full scans every Monday. So far, on two occasions, on Sunday morning, her user profile is corrupt. I couldn't find any solution that allowed me to repair her profile, so I end up having to (as suggested by MS Knowledge Base, http://windows.microsoft.com/en-us/windows7/fix-a-corrupted-user-profile ;, Yep, no solution to fixing it, just clobber the whole thing) recreating her profile, then copying over data, recreating her Outlook profile, reconfiguring all third-party applications, etc. It's a real nightmare, and takes 4 hours to do each time. Are there any suggestions on how to resolve this profile corruption? This was happening even before the RAID/Acronis solution was in place, but I thought I'd provide as much information as possible.

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  • 10Gbe sfp+ Cross Over Cable required? Is there such a thing?

    - by dc-patos
    To preface, this is my first experience with 10GBe networking and I have encountered an issue which research does not seem to document a solution for... I have two servers (older DL580G5 and DL380G5), each with a HP NC522SFP 10Gbe dual sfp+ port adapter. I have purchased copper "passive" direct connect adapter cables (which look like twinax), which seem to work well when I connect them to the sfp+ ports on my Dell 5524 switch. However, if I directly connect the two servers with the same cable, the link doesn't come up. I am running WS2012 standard on each server. My intention is to use one of these servers as a home brew SAN and I would like to enable mutiple 10Gbe paths for iSCSI traffic. My question(s): Can I connect the two adapters to each other, such as I would with other less speedy generations of ethernet? If I can, do I require a crossover cable, or some type of other sfp+ cable solution to do this? My 10Gbe sfp+ switch ports are premium, but server to server connections are doable in small numbers for me and I would really like the multiple paths this would give me. Is there a simple solution?

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  • DAS vs SAN storage for serving 2 to 4 nodes

    - by Luke404
    We currently have 4 Linux nodes with local storage, arranged in two active/passive pairs with storage mirrored using DRBD, running virtual machines (actually using Xen Hypervisor) for typical hosting workloads (mail, web, a couple VPS, etc.). We're approaching the (presumed) maximum IOPS of those servers, and we're planning to migrate to an external storage solution with two active nodes, with capacity for up to four active nodes. Since we're an all-Dell shop I've done some research and found the MD3200 / MD3200i products should be the ones we're looking for. We are pretty sure we won't be attaching more than 4 hosts on a single storage and I'm wondering if there is any clear advantage for one or the other. In theory I should be able to attach 4 SAS hosts to a single MD3200 (single links on a single controller MD3200, or dual redundant SAS links from each host to a dual-controller MD3200), or 4 iSCSI hosts to a single MD3200i (directly on its 4 GigE ports without any switch, again with dual links for the dual controller option). Both setups should let us implement live VM migration since all hosts can access all the LUNs at the same time, and also some shared filesystem like GFS2 or OCFS2. Also, both setups should allow full redundancy of the whole system (assuming dual controllers in the storage). One difference I can see is that the DAS solution is actually limited to 4 hosts while the iSCSI one should be able to grow to more hosts (adding two GigE switches to the mix). One point for the iSCSI solution is that it would allow us to start out with our current nodes and upgrade them at a later time (we can't add other SAS controllers, but they already have 4 GigE ports each). With the right (iSCSI|SAS) controllers I should be able to connect diskless nodes and boot them off the external storage which I think is a good thing (get rid of any local storage). On the other hand, I would have thought the SAS one to be cheaper but it seems like an MD3200 actually costs a little less than an MD3200i (?) (please note: I've used Dell gear in my examples since that's what we're looking for but I assume the same goes with other vendors) I would like to know if my assumptions above are correct, and if I'm missing any important difference between the two setups.

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  • Using GUI ftp on Win7 and Vista without additional software

    - by Stephen Jones
    Goal: provide a 'no-software' method for 'less technical' users to access password protect ftp location from Win7 and Vista (existing approach for WinXP works). 'No software' method to mean without installing additional software (e.g. FileZilla, WinSCP) - the solution is supplied to external non-technical users. WinXP (works): Using Windows Explorer, WinXP supports non-technical ftp access by pasting: ftp://username:[email protected] into the address bar. The remote ftp site's files / directory structure becomes available and can be copied to / from easily (in the style of local file copy / paste) by a 'less technical' user. Win7 / Vista (doesn't work): Pasting the same URL into the Windows Explorer on Win7 or Vista causes an error: An error occurred opening that folder on the FTP server. Make sure you have permission to access that folder. Details: The connection with the server was reset. Notes: a) The same username/password/server typed from the (DOS) command line achieves access to the server, but this is a more 'technical' solution than desired. I am looking for a WinXP equivalent solution. b) Under 'Control Panel' / 'Internet options' / 'Advanced' tab - the boxes for 'Enable FTP folder view' and 'Use Passive FTP' are ticked (enabled) c) Adding an inbound firewall rule for local port 20 (TCP) was attempted with no difference in results (i.e. failure)

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  • Blue Screen at booting Windows 2000 virtual

    - by darkdog
    well i hope this stackexchange site is the right for my issue. I've an Oracle VirtualBox running on some acer pc Settings for the Acer PC: Windows 7 SP1 64bit Intel G630 @ 2.7Ghz 2GB RAM i used a .vhd image which contains a windows 2000 system with some preconfigured stuff and software for a customer. At the Windows boot time immediately after the "Loading Windows 2000..." - Screen i get the following Error: Sorry for the German Text but it say's something like "Check the Size of your HDD. If the error contains a driver, deactivate it and try again. Or change the graficcard" The HDD Size shouldn't be a problem in my honest opinion. Can anyone give me an adivce what i can try to do? I just tested the same combination of the .vhd image and oracle virtualbox on another computer. Same issue. Greetings

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  • VirtualBox won't use any kind of hardware acceleration

    - by burnersk
    I see an problem with VirtualBox hardware acceleration functionality... My system configuration: MSI PH67A-C43 (B3) (BIOS: 2.70) Intel Core i5-2400 Windows 7 Professional SP1 64-bit Oracle VirtualBox 4.1.10 Oracle VirtualBox Extension Pack 4.1.10 I can select the individual acceleration options such as PAE/NX, VT-x/VMD-V or Nested Paging within VM-Settings but if I start the VM the accelerations will be disabled as of the tooltip from CPU (right next to shared folders). Each acceleration is "Disabled". Does this sounds familar to anybody? How can I solve this?

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  • How to install OSX into VirtualBox on a Macbook Air using Apple's Reinstall USB

    - by eug
    I'm currently dual-booting OSX and Ubuntu on my Macbook Air, but it'd be nice to run OSX within Ubuntu via VirtualBox. This seems possible using VirtualBox and is legal - there's even a post on an Oracle blog describing this: http://blogs.oracle.com/karim/entry/installing_mac_os_x_in. Actually, I've read elsewhere that it's only legal with OSX Server, but can't find a reason why it'd be illegal with normal OSX - please let me know if you think otherwise. The problem I have is that a MacBook Air doesn't come with a bootable DVD, but with a "Reinstall Drive" which is a USB stick that comes up as a CDROM drive. It doesn't seem to be ISO9660-formatted though but has an Apple partition table, with OSX installed on an HFS partition. refit says that it has a "boot.efi" as well. I don't know Apple booting/partitioning very well and would really appreciate some advice on how to convert this USB into an ISO or boot it in VirtualBox some other way.

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  • How to connect a USB GDI printer to Linux over a D-Link print server?

    - by jpe
    The setup is the following: +------------+ +-----------------+ +---------+ | HP LJ P1005|--USB--| D-Link DPR-1020 |---LAN---| PC Linux| +------------+ +-----------------+ + +---------+ | +------------+ +--| PC Windows | +------------+ HP LJ P1005 is one of those GDI printers that requires the printer driver to do most of the work for it and therefore is a bit "special". D-Link DPR-1020 is a print server with an Ethernet and an USB port that actually supports printing to challenged (read GDI) printers using a utility called PS-Link. What the utility does is basically mirror a USB port over the network to the print server so that the printer driver and the printer both are happy to talk to each other. The PC-s are notebooks that come and go, i.e. are not there all the time. Is there an equivalent of the D-Link PS-Link utility for Linux that could mirror a USB port over the network for a Linux host? And can the solution be used with D-Link DPR-1020? If not then I basically wasted the money buying the print server because the goal was to share a small printer among a couple of users with diverse operating systems in an office. The print server specs say that it supports Linux and LJ P1005, but the Catch 22 appears to be the solution used for GDI printers... It should be noted that it is possible to print from Linux to LJ P1005 directly over USB. This far sharing involved reconnecting the USB cable to appropriate computer to print. Now one of the desks is separated, so the cable does not work. Searching the net did not yield anything useful. Please do not suggest solutions involving a Windows machine (either virtual or not), my question is whether a solution only involving a Linux machine exists.

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  • Kickstart: Serve dynamic kickstart images via a CGI or PHP script?

    - by Stefan Lasiewski
    I'd like to kickstart a couple dozen RHEL6/SL6 servers. However, some of these servers are different and I don't want to create a new ks.cfg file for each class of server. Are there any products which can generate a Kickstart file dynamically on the fly, from a template? For example, if I append a line like this to the KERNEL: APPEND ks=http://192.168.1.100/cgi-bin/ks.cgi Then the script ks.cgi can determine what host this is (Via the MAC address), and print out Kickstart options which are appropriate for that host. I could optionally override some options by passing parameters to the script, like this: APPEND ks=http://192.168.1.100/cgi-bin/ks.cgi?NODETYPE=production&IP=192.168.2.80 After we kickstart the server, we activate Cfengine/Puppet on this system and manage the system using our favorite Configuration Management product. We're experimenting with xCAT but it is proving too cumbersome. I've looked into Cobbler, but I'm not sure it does this. Update: A roll-your-own solution is discussed in the O'Reilly book: Managing RPM-Based Systems with Kickstart and Yum, Chapter 3. Customizing Your Kickstart Install Dynamic ks.cfg, which echos some of the comments in this thread: To implement such a tool is beyond the scope of this Short Cut, but I can walk through the high-level design. Any such solution would mix a data store (the things that change) with a templating solution (the things that don’t change). The data store would hold the per-machine data, such as the IP address and hostname. You would also need a unique identifier, perhaps the hostname, such that you could pick up a given machine’s data. The data store could be a flat file, XML data, or a relational database such as PostgreSQL or MySQL. In turn, to invoke the system, you pass a machine’s unique identifier as a URL parameter. For example: boot: linux ks=http://your.kickstart.server/gen_config?host-server25 In this example, the CGI (or servlet, or whatever) generates a ks.cfg for the machine server25. But where, oh where, is the code for ks.cgi?

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  • Multiple Devices connecting to VPN on CentOS server

    - by jfreak53
    I am looking for a solution as to what would be the VPN software for multiple OSes and Devices. I currently have 15 systems to connect to a VPN. I was using Hamachi from LogMeIn but their lack of Android support really upsets me, and their limited support for Linux OSes is also a let down. 90% of my systems are Ubuntu 11+ systems, only 2 are Windows XP. But I also have a few people, maybe 3 that need to connect to it from Android devices. This is where Hamachi has let me down and I want to move to my own VPN solution. The server would be a simple VPS running CentOS. So I need some VPN software that allows connection of those to a Linux based server. I wanted to go with OpenVPN, but I am under the opinion that in any OS you have to have their software to connect to the VPN. Ubuntu supports VPN's out of the gate, but OpenVPN requires extra software to be installed, I don't want this if I can help it. Same with Windows and same with Android. Plus android mostly requires rooted devices for OpenVPN, at least from what I've read. I was looking at maybe L2TP, but I'm not sure how easy it is to get Ubu systems connected with it as I haven't found much on the subject, let alone Window's XP machines. I know Android connects out of the gate to it. I don't know much about L2TP but I know it's a pain to get running in CentOS from what I have read. Now the last option is some sort of software for PPTP but I've never read anything on it and don't know if all systems are compatible with it. What would be your solution to these devices and multiple OSes? OpenVPN seems to be my heading I just don't like it that it always requires software to run and rooted Android Devices. Any solutions for this and install solutions? Maybe a different OS for the server like Ubuntu would make another type of VPN easier?

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  • Software/hardware to build video streaming server?

    - by Sasha Yanovets
    I am looking for a video streaming server solution, something like online TV server, with ability to make live broadcasts in the internet. What software could you recommend for that? What kind of hardware it should run on, should be there anything special? I am looking for a solution that could be scaled up to at least 1000 simultaneous users online with good resolution of video. I think it is good to have general answer on what direction to choose. But here more details on my specific case: I just looking for a solution almost from scratch. We have some video content that we've produced, but it is not delivered over internet yet. We do not tied to any particular vendor for now. We want to make 24 hours of steaming three 8 hour blocks with change of content every day. We want the ability to make regular live broadcasts. I guess we will need to have several options of streaming quality (low ~56 kb/s mid ~273 kb/s). Some terms just foreign to me (like play-truncation rate), if you could point out what parameters we should avare of, it would be great. Uplink to the internet is to be determined. We plan to start from something and scale up on the way. If you are already have some kind of media streaming server, just describe its configuration here (hardware, OS, software), peak number of concurrent users it serves. I think it could help people approaching this task.

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