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• SQL 2008 R2 3rd Party Peer-to-Peer Replication, Global Site Distribution

  - by gombala

  We are looking at hosting 3 globally distributed SQL Server installations at different data centers. The intent is that Site A will serve web traffic and data for a specific region, same with Site B and C. In the case that Site A data center goes down, looses connectivity, etc. the users of Site A users will fail over to Site B or C (depending which is up). Also, if a user from Site A travels to Site C they should be able to access their data as it was on Site A. My questions is what SQL replication technology (SQL Replication or 3rd party) can support this scenario? We are using SQL 2008 R2 Enterprise at each site, each site runs on top of VMWare with a Netapp filer. Would something like distributed caching help in this scenario as well? We have looked at and tested Peer-to-Peer replication but have encountered issues with conflicts during our testing. I imagine there are other global data centers that have encountered and solved this issue.

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• What emulator / VM software can I use to create a Win32-portable Linux Guest?

  - by Jotham

  Hi, I want to create a portable VM setup so that I can boot a Linux install regardless of which Windows XP / Windows 7 host machine I am on. I was looking at Qemu but it doesn't appear to have a relatively safe win32 build. Other things like VirtualBox require complete install on the host OS for performance reasons. I'm not so concerned about performance, I just want to run a few curses based applications. My ideal end goal would be a a memory stick of some size with a VM/Emulator I can boot on most WinXP/Windows 7 machines and access my own curses based applications (probably archlinux or debian). Any help would be appreciated. Regards,

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• Clone a 2TB WD Green internal drive with bad sectors to a 3TB partitioned external

  - by ron

  I have a 2TB WD Black drive and would like to simply do a straight clone from a failing 3TB drive to it. Both are SATA. Will I be able to just install the new drive alongside the faulty one and then do the clone/rescue attempt with ddrescue or is there a better method? The faulty internal drive mentioned has bed sectors although am usually able to boot into Windows 7 Ultimate with it and navigate and access all my programs. I have been attempting some trials with an Ubuntu Live CD using ddrescue but am not sure I'm doing it right. I have a 3TB WD my book essential external which is GPT and have created a separate 2TB partition on it which I am trying to clone to. I assume I need to format the new drive first to NTFS? Can I do that via the Ubuntu Rescue Remix 12-04 live DVD that I've been booting with?

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• Sync files between two users on Windows-7 Enterprise

  - by Zachary

  I'm running Windows-7 enterprise on a dell Laptop, and I'd like to sync the entire user directory structure between two users. Background: I am an existing user on the computer, and soon I'll be sharing the computer with an employee. I want everything from my account to overwrite the other, while anything he does is mirrored on mine. I'm not worried about security because nothing vital is on the computer. Both accounts are administrators, and I have already tried to use hard links to accomplish this. However the prompt leaves me with "Access Denied". Is what I'm trying to do possible, and if so what steps must be done to accomplish it?

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• HP ProBook 4540s - Can't find HP Protect Tools to activate fingerprint reader

  - by CandiM

  I got an HP ProBook 4540s in December--When I first got it, every time I booted up, there was a rather large icon, almost like a Windows 7 gadget, to access HP Protect Tools, but I had too much going on to mess with it right away and kept clicking on something like "remind me next time I log on" and determined to get acquainted with it after the holidays--But at some point in time, that icon went away and now I can't locate it at all-- I'd like to try, and probably use, the fingerprint reader and explore whatever else is among the Protect Tools, but now I can't find them or any folder or .exe to acceess them-- Can anyone help me find them?-- Thanks so much

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• Video on demand streaming solution

  - by Rafal Saltarski

  we are looking into building a commercial vod service and I'm doing research on the subject. We need the video to be protected with DRM so users cant rip/copy (i realise its mostly useless but the lawyers demand it from us) and the server solution to be scalable and able to distrubute content in hd to a high number of clients. Besides, we would need to be able to develop a player integrated with the payment system, so users that havent bought access would for example only see the first 30 seconds of video and then have the playback interrupted, or only be able to watch video for 72h after payment. Also it would be nice if we could distribute video to mobile platforms like android/wp8/ios but thats not a priority at the moment. I have zero experience on that topic so I would greatly appreciate any feedback or giving me stuff to read about like protocols or key phrases i should know. Thanks

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• OpenSSH SFTP server with chroot() + File Permissions

  - by HannesFostie

  I am currently setting up an SFTP server but there is one detail I can't seem to figure out. When I add a user, I would like him to connect using his client and be able to write in his "root dir" right away. My Match case for the SFTP-users group currently has ChrootDirectory set as "/home/%u", and inside that directory I have to have a subdirectory owned by the user, while /home/%u itself is owned by root. Next to that, the "root dir" also has a couple files, .bashrc to name one. Is it possible to put these files somewhere else, remove them, or at least make them invisible to the user? Thanks EDIT: One more little thing I'd like to implement is for one account to have read (or rw, not sure yet) access to all other users' home directories. What is the easiest way to implement this?

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• Can't Allow Specific Port in Windows Firewall Advanced Security - Windows 2008

  - by Jody

  In the Outbound Rules, I set up a rule to allow outbound connection from port 26. But, it doesn't work. However, if I allow "all port" for this rule, this will work, but then all ports will be allowed too. What is the reason? Is there any conflicting rule? I need to fix this as soon as possible. -Edit to add : I'm trying to allow email access to mail server outside (port 26). The thing is, even if I telnet using port 26, it will not work, unless I allow "all ports". Specific port will not do.

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• What's causing "shutdown state" after TFTP reloaded Cisco `running-config` on 871?

  - by xtian

  Cisco CCP Write Configuration borked my 871w config while I was trying to setup port forwarding. I tested the 871's flash memory with fsck and rewrote the minimal config for TFTP (which is the same for Cisco's CCP app.). Thne, I successfully uploaded a previously working running-config from Win Vista using SolarWinds TFTP Server, unfortunately the restore was not entirely successful. The old running config was saved to the 871's startup-config and I can login using console port. Some other things that are working are the hostname and welcome message but that's about it. Startup shows an error SETUP: new interface NVI0 placed in "shutdown" state after tftp. The missing light on the access point modem for ethernet link show the 871'a outside FE4 is not working. SO...what's the possible problem with reloading a previously working config (approximately 4 months with the same config) via TFTP? Is there something I can look for on the 871 to verify the config?

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• Subversion LDAP Configuration

  - by dbyrne

  I am configuring a subversion repository to use basic LDAP authentication. I have an entry in my http.conf file that looks like this: <Location /company/some/location> DAV svn SVNPath /repository/some/location AuthType Basic AuthName LDAP AuthBasicProvider ldap Require valid-user AuthLDAPBindDN "cn=SubversionAdmin,ou=admins,o=company.com" AuthLDAPBindPassword "XXXXXXX" AuthLDAPURL "ldap://company.com/ou=people,o=company.com?personid" </Location> This works fine for living, breathing people who need to log in. However, I also need to provide application accounts access to the repository. These accounts are in a different OU. Do I need to add a whole new <location> element, or can I add a second AuthLDAPURLto the existing entry?

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• Start vino-server (VNC) before login on Linux CentOS

  - by Dr. Gianluigi Zane Zanettini

  I'm using the default vino-server package to access my CentOS 6 workstation via VNC. It works ok, but only AFTER I locally login on the workstation. I need to have vino-server start BEFORE the login, right at the Gnome login screen where I choose username and password. Due to personal reasons, I need to use Vino and not vnc-server or any other packages. I already tried to insert /usr/libexec/vino-server & in /etc/gdm/Init/Default but this didn't solve the issue.

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• Quick change of SSH tunnel port forwarding options for SOCKS proxy

  - by user1335897

  The goal is to have access to internet thru SSH tunneling to SOCKS proxy. Me - ssh-on-my-vps - SOCKS proxy - internet Thing is I want to be able to quickly change the SOCKS proxy in this chain. If I use port forwarding on ssh, I assume I have to re-establish SSH tunnel with new SOCKS proxy address in parameters whenever I want to change proxy. Is that right? If it is, then I probably should always point SSH tunnel to localhost listening proxy server which will send requests to specified SOCKS proxy. So what local proxy I should choose that allows to easily change the destination SOCKS proxy via maybe reading from local file where I would put the SOCKS proxy address or via specifying new SOCKS address in its web-admin page?

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• Formatting a disk for Macintosh using Linux

  - by Ken Bloom

  I've been asked to move data from an old external hard drive to a new one, and to make the new one compatible with the Macintosh. (The old drive's USB connection has died, and I'm connecting to old the drive using a PC card that provieds an eSATA to the drive. The recipient's Macintosh doesn't have a PC card slot, so she can't access the old drive anymore. Hence, the new drive.) Naturally, I'm doing this data transfer using Linux. I've discovered that I can format the drive as HFS+ using mkfs.hfsplus from the hfsprogs package. But I need to know: do I need to do anything special with the partition table? Is there a special Macintosh partition table format that I need to format this disk to? If so, what tools can I use to get the right format for the partition table?

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• How can I track all emails sent from my users?

  - by schnapple

  My client runs a small business. This business has a small number of employees. For various reasons, my client would like to be able to have a copy of all of the emails sent from their employees BCC'd to them. The net effect here would be similar to the access they would have if they hosted their email through Exchange but the business is too small to make this a feasible option. They are currently hosted through GoDaddy. I have not investigated it myself personally but apparently GoDaddy can do something along these lines for all incoming email but not for outgoing email. Is there a way to set up email accounts for a particular domain to where a specified admin user could be copied on all outgoing email?

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• How can I track all emails sent from my users?

  - by Schnapple

  My client runs a small business. This business has a small number of employees. For various reasons, my client would like to be able to have a copy of all of the emails sent from their employees BCC'd to them. The net effect here would be similar to the access they would have if they hosted their email through Exchange but the business is too small to make this a feasible option. They are currently hosted through GoDaddy. I have not investigated it myself personally but apparently GoDaddy can do something along these lines for all incoming email but not for outgoing email. Is there a way to set up email accounts for a particular domain to where a specified admin user could be copied on all outgoing email?

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• client denied by server configuration , Options ExecCGI is off in this directory

  - by John Smiith

  Error log [Wed Jul 04 06:01:54 2012] [error] [client 127.0.0.1] File does not exist: C:/xampp/www/htdocs/localhost/favicon.ico [Wed Jul 04 06:01:54 2012] [error] [client 127.0.0.1] client denied by server configuration: C:/xampp/Bin/apache [Wed Jul 04 06:01:58 2012] [error] [client 127.0.0.1] Options ExecCGI is off in this directory: C:/xampp/www/htdocs/wsgi_app/wsgi_handler.py [Wed Jul 04 06:01:58 2012] [error] [client 127.0.0.1] client denied by server configuration: C:/xampp/Bin/apache [Wed Jul 04 06:01:58 2012] [error] [client 127.0.0.1] File does not exist: C:/xampp/www/htdocs/localhost/favicon.ico [Wed Jul 04 06:01:58 2012] [error] [client 127.0.0.1] client denied by server configuration: C:/xampp/Bin/apache Virtual host <VirtualHost *:80> ServerAdmin [email protected] DocumentRoot "C:/xampp/www/htdocs/localhost" ServerName localhost ServerAlias www.localhost ErrorLog "logs/localhost-error.log" CustomLog "logs/localhost-access.log" combined </VirtualHost> mod_wsgi httpdconf WSGIScriptAlias /wsgi "C:/xampp/www/htdocs/wsgi_app/wsgi_handler.py" <Directory "C:/xampp/www/htdocs/wsgi_app/"> AllowOverride None Options None Order deny,allow Allow from all </Directory> http://localhost/wsgi giving 403 error

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• Extremely slow startup of tomcat

  - by Henrik

  I have a tomcat 7 installation on a Solaris 10 server. My problem is that starting the server (or deploying a new war) is extremely slow. It usually take 30 - 60 minutes. The war application is a medium sized grails application so there are quite a a lot of files. The server is running other server applications as well but from my basic skills I don't see this as a problem. Can anyone give me some tips on how to analyse this? Settings in Tomcat, java, server, disc access or something else? I use these parameters to tomcat: CATALINA_OPTS="-Dcom.sun.management.jmxremote=true -Djava.awt.headless=true -Dfile.encoding=UTF-8 -server -Xms1536m -Xmx1536m -XX:NewSize=256m -XX:MaxNewSize=256m -XX:PermSize=512m -XX:MaxPermSize=512m -XX:+DisableExplicitGC" And I use a 32 bit java 1.6.

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• Dovecot, POP3 and Gmail

  - by Eric J.

  I setup Postfix and Dovecot on a new Ubuntu box following these directions. From a client machine, I validate that POP3 seems to be working telnet mydomain.com 110 +OK Dovecot ready. USER [email protected] +OK PASS mypassword +OK Logged in. quit +OK Logging out. However, when trying to configure Gmail on the same client to retrieve email via POP3, I get the error Server denied POP3 access for the given username and password. Server returned error: "Login failed." I carefully confirmed that Gmail is configured to use the same POP Server, Port, Username and Password I used when checking the connection with telnet. What could be causing Gmail to get a "Login failed" message?

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• Cable installed - now my hub has no connection the router/modem - what do I need to buy?

  - by bcmcfc

  My previous setup was as follows: [modem/router]------[switch]+------ [pc1] +------ [pc2] I've just moved and had cable installed and I no longer have the option of running a lengthy LAN cable from the router to the switch to provide network and internet access to the two PCs. The cable company provided 2 wireless N USB adapters. What do I need to buy to plug into where in order to restore the network to its previous state? PC1 dual boots Windows 7 and Ubuntu 12. PC2 runs Debian 6. Edit: USB adapters - Netgear WNDA3200 Switch - TP-Link TL-SF1008D 8 port Ethernet switch Cabling - various patch cables cat5e rj45 Modem/Router - pretty standard cable company job - wireless Intention is something like- [modem/router] --wifi-- [some-new-hardware or perhaps to pc1] ----[switch]---[pc1/2]

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• how to restore grub

  - by takeshin

  During copying files via lan my Ubuntu Server 10.04 hung up and I had to reset the computer. After reboot, I got: Grub error 17, so I tried the rescue alternate CD, but I got a info, that no partitions were found on the disk. I used testdisk to restore the partitions. Using fdisk -l shows the partitions now, but when the system boots up I does nothing but displays: L234: When I plug the drive to another computer, it is not automatically mounted and I can't access the data. What to do now? How to restore the grub and boot up the system?

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• Xen HVM guest has severe clock drift

  - by ipartola

  I am seeing a very severe clock drift on my Xen HVM VPS, rented from a hosting provider, so I don't have access to the dom0 system. I continuously run ntpd, but the clock drifts by as much as 30 seconds in 5 minutes and NTP cannot keep up. Has anyone experienced this? Here are some details: $ dmesg | grep clock [ 0.160000] Measured 347 cycles TSC warp between CPUs, turning off TSC clock. [ 0.396000] * this clock source is slow. Consider trying other clock sources [ 0.550448] Switching to clocksource acpi_pm [ 0.653135] rtc_cmos 00:05: setting system clock to 2011-03-09 02:45:40 UTC (1299638740) $ cat /sys/devices/system/clocksource/clocksource0/available_clocksource acpi_pm $ cat /sys/devices/system/clocksource/clocksource0/current_clocksource acpi_pm

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• How to set IP address of Amazon EC2 instance to its Elastic IP?

  - by TWord

  Hi, I have an Amazon EC2 instance running and I am installing a program on it that needs to know what the machine's IP address is. Can I set the Elastic IP address to the IP address within the EC2 instance? Its okay if it reroutes data packets somewhere 'outside' and then back to itself, but the software NEEDs me to specify an IP address of the machine its on. I proceeded with the software installation using the "local IP" (10.xx.xx.xx) within the software installation. I don't know if this is the reason why the application is not visible publicly (as I'm trying to determine in the question http://serverfault.com/questions/166946/allowing-web-access-to-an-amazon-ec2-windows-server-2008-instance-running-tomcat)

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• NGINX downloads text file instead of displaying it

  - by Hoang Lam

  I have Nginx installed with the following nginx.conf: user nginx; worker_processes 1; error_log /var/log/nginx/error.log; pid /var/run/nginx.pid; events { worker_connections 1024; } http { include /etc/nginx/mime.types; log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for"'; access_log /vagrant/access.log main; sendfile on; keepalive_timeout 65; include /etc/nginx/conf.d/*.conf; } Everytime I tried the URL of any text files (not PHP, it works fine), the browser asks to download it. Common measure such as disabling default-type octet/stream fails.

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• 4TB HGST SATA drive only shows 1.62 TB in Windows Server 2012

  - by user136085

  I'm using a Supermicro X9SRE-3F motherboard with the latest BIOS and 2x 4TB drives connected to the on-board SATA controller. If I set the BIOS to RAID and create a RAID 1 array, the array shows up in the BIOS as 3.6TB. However when I boot Windows (on a separate RAID 1 array), the 4TB drives show up individually in disk manager as 2x 1.62TB drives. I could use Windows 2012 to set up software RAID 1, but when I set the BIOS back to 2x individual drives, they still show up in Windows as 2x 1.62TB drives. How do I access the full capacity of these drives? Thanks, Brian Bulaw

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• Squid "system returned (13) Permission denied"

  - by AndyM

  I can get to a site form my Squid server directly using lynx http://my-URL , ie not using squid as the proxy, just to prove the connectivity exists. Lynx connects fine to the site - its a Weblogic portal When I try the same site from client with the squid machine as a proxy I get a squid error indicating that the destination site refused the connection from Squid. The squid server is a RHEL5.5 server. The error is something like The following error was encountered: Connection Failed The systen returned: (13) Permission denied Any ideas ? The squid access.log just indicates a TCP_MISS. Its as if the destinatin site knows its been accessed by squid and is not allowing ?

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