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• laptop motherboard "shorts" when connected to adapter

  - by Bash

  Disclaimer: I'm sort of a noob, and this is a long post. Thank you all in advance! summary: completely dead laptop with no signs of life whatsoever (suddenly, for no apparent reason) Here's the deal: Lenovo Y470 (only a few months old with no water or shock damage). It stopped working suddenly (no lights, no sound, even when connecting adapter with or without battery). I tried a different adapter (same electrical rating), but no luck. I disassembled the thing completely, and tried plugging in the adapter and looking for signs of life with all different combinations of components installed (tried all combinations of RAM, CPU, USB power cords, screen, etc plugged in). no luck. Then, I noticed (as I was plugging in the adapter to try for the millionth time) that there was a "spark" for an instant when I first connect the adapter to the power jack. The adapter's LED would then flash (indicating it isn't working or charging). So, I thought the power jack has a short of some sort (due to bad soldering or something). Scanned virtually every single component on the motherboard, and tested the power jack connections with a multimeter. No shorts or damage to anything on the entire motherboard. Now I'm thinking I need to replace the motherboard. But, my actual question: What does this "shorting" when connecting the adapter signify? (btw, the voltage across the power connections and current through it drop to virtually zero when the adapter is connected and "sparks", and they stay that way). The bewildering thing is that there are no damaged components, and the voltage across adapter terminals returns to normal after I disconnect it (so it's not damaged). Please take a look at the pictures (of the motherboard's power connection and nearby components) and see if I'm missing something completely obvious... Links to pictures and laptop and motherboard model: pictures on DropBox Motherboard model: LA-6881P Laptop model: Lenovo IdeaPad Y470

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• mysql startup, shtudown and logging on osx

  - by Joelio

  Hi, I am trying to troubleshoot some mysql problems (I have a table I cant seem to delete or drop, it hangs forever) I have 10.5.8 osx, I dont remember how/if I installed mysql, here is what I know: it automatically starts on boot the process looks like this: /usr/local/mysql/libexec/mysqld --basedir=/usr/local/mysql --datadir=/usr/local/mysql/var --pid-file=/usr/local/mysql/var/Joels-New-Pro.local.pid _mysql 96 0.0 0.0 75884 684 ?? Ss Sat06PM 0:00.02 /bin/sh /usr/local/mysql/bin/mysqld_safe when I run: /usr/local/mysql/libexec/mysqld --verbose --help it says: /usr/local/mysql/libexec/mysqld Ver 5.0.45 for apple-darwin9.1.0 on i686 (Source distribution) it seems to use my.cnf from /etc/my.cnf Now here are my questions: I dont see anything in the startupitems that remotely looks like mysql ls /Library/StartupItems/ BRESINKx86Monitoring ChmodBPF HP IO HP Trap Monitor Parallels ParallelsTransporter 1.) So how does it startup automatically? 2.) How do I start & stop this type of installation? Also, looking at the config, the logs have no values: /usr/local/mysql/libexec/mysqld --verbose --help|grep '^log' log (No default value) log-bin (No default value) log-bin-index (No default value) log-bin-trust-function-creators FALSE log-bin-trust-routine-creators FALSE log-error log-isam myisam.log log-queries-not-using-indexes FALSE log-short-format FALSE log-slave-updates FALSE log-slow-admin-statements FALSE log-slow-queries (No default value) log-tc tc.log log-tc-size 24576 log-update (No default value) log-warnings 1 3.) Does that mean there is no logging enabled in mysetup? thanks in advance! Joel

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• Error applying iptables rules using iptables-restore

  - by John Franic

  Hi I'm using Ubuntu 9.04 on a VPS. I'm getting an error if I apply a iptables rule. Here is what I have done. 1.Saved the existing rules iptables-save /etc/iptables.up.rules Created iptables.test.rules and add some rules to it nano /etc/iptables.test.rulesnano /etc/iptables.test.rules This is the rules I added *filter # Allows all loopback (lo0) traffic and drop all traffic to 127/8 that doesn't use lo0 -A INPUT -i lo -j ACCEPT -A INPUT -i ! lo -d 127.0.0.0/8 -j REJECT # Accepts all established inbound connections -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT # Allows all outbound traffic # You can modify this to only allow certain traffic -A OUTPUT -j ACCEPT # Allows HTTP and HTTPS connections from anywhere (the normal ports for websites) -A INPUT -p tcp --dport 80 -j ACCEPT -A INPUT -p tcp --dport 443 -j ACCEPT # Allows SSH connections # # THE -dport NUMBER IS THE SAME ONE YOU SET UP IN THE SSHD_CONFIG FILE # -A INPUT -p tcp -m state --state NEW --dport 22- j ACCEPT # Allow ping -A INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT # log iptables denied calls -A INPUT -m limit --limit 5/min -j LOG --log-prefix "iptables denied: " --log-level 7 # Reject all other inbound - default deny unless explicitly allowed policy -A INPUT -j REJECT -A FORWARD -j REJECT COMMIT After editing when I try to apply the rules by iptables-restore < /etc/iptables.test.rules I get the following error iptables-restore: line 42 failed Line 42 is COMMIT and I comment that out I get iptables-restore: COMMIT expected at line 43 I'm not sure what is the problem, it is expecting COMMIT but if COMMIT is there it's giving error. Could it be due to the fact i'm usin a VPS?My provider using OpenVZ for virtualizaton.

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• How to determine which ports are open/closed on a FIREWALL?

  - by Rahl

  It seems no one has asked this question before (most regard host-based firewalls). Anyone familiar with port scanning tools (e.g. nmap) knows all about SYN scanning, FIN scanning, and the like to determine open ports on a host machine. Question is though, how do you determine the open ports on a firewall itself (disregard whether the host you're trying to connect to behind the firewall has those particular ports open or closed). This is assuming the firewall is blocking your IP connection. Example: We all communicate with serverfault.com through port 80 (web traffic). A scan on a host would reveal port 80 is open. If serverfault.com is behind a firewall and still allows this traffic through, then we can assume the firewall has port 80 open also. Now let's assume the firewall is blocking you (e.g. your IP address is under the deny list or is missing in the allowed list). You know port 80 has to be open (it works for appropriate IP addresses), but when you (the disallowed IP) attempt any scanning, all port scan attempts on the firewall drop the packet (including port 80, which we know to be open). So, how might we accomplish a direct firewall scan to reveal open/closed ports on the firewall itself, while still using the disallowed IP?

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• Using pre-made patch cables on a punch down block?

  - by Trevor Harrison

  I need to add a 24 port switch to my wiring closet. In the (distant) past, I usually just punched each port of the switch to a 110 block on the wall (using hand-made cables), and cross connect between that and the 110 block that has the runs to each workstation. To save time, I'm thinking of buying 12 pre-made drop cables, cutting them in half (so 24 single ended cables), and punching those to my 110 block. The things I'm worried about are wire type (ie. solid vs. strands) and color scheme. I really don't know if they use different wire types (still?), but I remember that being an issue at one point. Can anyone comment on this? (I definitely won't feel comfortable trying to punch stranded wiring on my 110 block) Also, picking up a random pre-built cable I had laying around, I noticed that the color scheme used didn't appear to be T568B, but T568A, which would clash with the rest of my wall. Anyone know of an online source that specifies these things? I've looked at www.cablesforless.com (which does have nicer prices) and www.cablestogo.com (which seem stupid expensive) so far. Cables For Less doesn't specify wiring scheme, Cables To Go does specify T568B. Both seem to specify stranded wires instead of solid.

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• Getting Server 2008 R2 to ignore all traffic from Internet-facing NIC, leaving it to a VM

  - by Wolvenmoon

  I got in to Server 2008 R2 via Dreamspark and would like to start learning on it. I don't have much option but to put it on a system sitting between the Internet and my home LAN due to electricity bills and the fact that 3 computers in an 11x11 space in 102 degree weather is pretty stygian. Currently I use a ClearOS gateway to manage everything, what I'd like to do is take my server 2008 R2 box, which has two NICs, and drop it at the head of my network. I'd want Server 2008 R2 to ignore all traffic on the external facing NIC and pass it to a virtual ClearOS gateway, and to put all its Internet traffic through its other NIC - which will face the rest of my network and be the default gateway for it. The theory is to keep the potentially vulnerable Server 2008 R2 install as tucked behind a Linux box as possible, without sacrificing too much performance. This is a home network that occasionally hosts dedicated game servers and voice chat servers, so most malicious activity is in the form of drive by non-targeted attacks, however, I don't trust Windows Server because I don't know the OS well enough, yet. So, three questions: How do I do this, am I going to be reasonably more secure doing this than if I just let the Server 2008 R2 rig handle all the network traffic and DHCP (not an option), and should I virtualize the Server 2008 R2 rig instead and if so in what? (Core 2 Duo e6600 w/ 5 gigs usable RAM)

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• "Options ExecCGI is off in this directory" When try to run Ruby code using mod_ruby

  - by Itay Moav

  I am on Ubuntu, Apache 2.2 Installed the fcgi via apt-get then removed it via apt-get remove. Installed mod-ruby configuration I added to Apache: LoadModule ruby_module /usr/lib/apache2/modules/mod_ruby.so RubyRequire apache/ruby-run <Directory /var/www> Options +ExecCGI </Directory> <Files *.rb> SetHandler ruby-object RubyHandler Apache::RubyRun.instance </Files> <Files *.rbx> SetHandler ruby-object RubyHandler Apache::RubyRun.instance </Files> I have a file in the www direcoty with puts 'baba' I have other files in that directory, all accessible via Apache. Test file has been chmod 777 In the browser I get 403. In Apache error log I get: [error] access to /var/www/t.rb failed for (null), reason: Options ExecCGI is off in this directory If I move this to a sub folder rubytest and modify the relevant config to be: <Directory /var/www/rubytest> Options +ExecCGI </Directory> and making sure the directory has 755 permissions on it, it just try to download the file, as if it does not recognize the postfix *.rb any more If I give directory and files 777 it fails: usr/lib/ruby/1.8/apache/ruby-run.rb:53: warning: Insecure world writable dir /var/www/rubytest in LOAD_PATH, mode 040777 [Tue May 24 19:39:58 2011] [error] mod_ruby: error in ruby [Tue May 24 19:39:58 2011] [error] mod_ruby: /usr/lib/ruby/1.8/apache/ruby-run.rb:53:in load': loading from unsafe file /var/www/rubytest/t.rb (SecurityError) [Tue May 24 19:39:58 2011] [error] mod_ruby: from /usr/lib/ruby/1.8/apache/ruby-run.rb:53:in handler' BUT, IF I USE *.rbx it works like a charm...go figure.

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• IIS 7.5 / Windows 7: Error 500.19, error code 0x800700b7

  - by nikhiljoshi

  I have been trying to resolve this issue. I am using Windows 7 and VS2008 +iis7.5. My project is stuck because of this error. The error says: Error Summary HTTP Error 500.19 - Internal Server Error The requested page cannot be accessed because the related configuration data for the page is invalid. `Detailed Error Information Module IIS Web Core Notification BeginRequest Handler Not yet determined Error Code 0x800700b7 Config Error There is a duplicate 'system.web.extensions/scripting/scriptResourceHandler' section defined Config File \\?\C:\inetpub\wwwroot\test23\web.config Requested URL http://localhost:80/test23 Physical Path C:\inetpub\wwwroot\test23 Logon Method Not yet determined Logon User Not yet determined Config Source 15: <sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"> 16: <section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/> 17: <sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"> ` I followed the instructions in this Microsoft solution document, but it didn't help. http://support.microsoft.com/kb/942055

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• Distribute IP packets accross different NIC queues with MSI (Message Signalled Interrupts)

  - by Ansis Atteka

  NetXtreme II BCM5709 Gigabit Ethernet NIC supports MSI feature (Message Signaled Interrupts) and it has 8 queues. Each queue has its own Interrupt handler in /proc/interrupts. What I am trying to accomplish is to tell NIC which packets should go to which queue. Questions: Is it possible to manually specify which IP packets should go to which queue by encapsulated protocol type (e.g. IPsec packets go in one queue, while TCP packets go in another queue)? If it is possible - how can I do it under Linux? If it is not possible - should I look at MSI-X capable NIC cards to solve this problem? More details: We have one Interface that is terminating IPSec and forwarding/terminating TCP connections. The IPSec packet decryption is inlined (this means that decryption is done under the same ksoftirqd/X context). We are trying to find out if we will be able to improve total performance if IPSec packets will be scheduled on another CPU than TCP packets. One more limitation is that IPSec code is not MP-safe, hence I can not run it under more than one ksoftirqd/X. By default it seems that packets are distributed/hashed by source IP over the 8 NIC queues. The bottleneck is IPSec that chokes out TCP traffic while it is decrypting/encrypting IPSec packets at ~100% CPU. OS is Ubuntu 10.10 (2.6.32-27-server) and NIC is Broadcom BCM5709.

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• CheckPoint/Amazon VPC VPN tunnel working inconsistently

  - by Lee

  First time poster, so please be gentle and correct me if there's Server Fault etiquette I'm missing. We have two CheckPoint edge devices at sites A & B, independently managed, connecting to two Amazon private clouds. In both cases, the two Amazon VPCs are in the same community on the CheckPoint device. A VPN tunnel exists between the two CheckPoint devices as well. Between Sites A & B and the Amazon VPC in Northern Virigina, we are unable to keep more than one tunnel up. Both will come up, but tunnel 2 will drop an hour after initiation and will not come back up while tunnel 1 is up. We believe the 1-hour period is due to IPsec phase 2 renegotiation, but can't be sure. On our side, we see the tunnel 2 remote endpoint as not responding to phase 2 negotiation. Between Sites A & B and the Amazon VPC in Oregon, we have no issues. Both tunnels are up and fail over properly. The CheckPoint gateways are using domain-based VPNs. According to CheckPoint's advice to Amazon, this won't work. Yet, in Oregon, it does. We've pursued this with Amazon and, despite the fact it's working in Oregon, they've refused to troubleshoot with us further. Can anyone suggest anything we can do to try to get this stabilized? Going to route-based VPNs is not an option for us.

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• Favorite tricks with linux kernel boot parameters?

  - by ~drpaulbrewer

  Most linux bootloaders let you edit the kernel boot command line before booting. There are often lots of parameters available -- Knoppix, for instance, has a list on their Knoppix Cheat Codes page -- but most are applicable only to compatibility and special situations. A few are hidden gems. Common usages of these codes are to boot to single-user mode, alter screen mode or drivers, or to specify an alternative root directory. Other more exotic uses are possible. Some linux distributions let you copy the boot cd into ram. Others (e.g., Ubuntu) let you use preseed files to clone installs when setting up multiple systems -- useful when installing a lab full of computers without having to baby sit each install. What other tricks have you found useful in system installs, repairs, backups, restores, establishing temporary servers, or other tasks? To add your favorite trick to the list: As much of the code for these options goes on either in initrd, or in a service handler that detects the kernel parameters, please list *(1) the kernel boot line parameter, (2) what it does, (3) the linux distribution and any required packages to activate the feature*. Thanks.

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• Software for handling camera RAW-files

  - by Eikern

  I use a digital SLR as most other photographers do today and have quickly realised that capturing images using camera-RAW files is the way to go. Personally I use Adobe Lightroom to handle my photo library, but I know there are other software available like Apple Aperture. These applications are quite hard to use for a novice, and are quite expensive too. I've often recommended other photographers to switch to camera-raw, but they won't do it because Windows can't handle it natively. Are there any free or cheaper applications out there that can do simple file handling and adjustments? Preferably so simple that my mom can do it. I know Nikon offers a codec that allows you to view NEF-files natively inside Windows, but still limits the uses of the file and slows the system down if the file is big. Does anybody know of a drag-and-drop application that converts camera-raw to JPG on-the-fly? In case I or someone would need to upload an image to the web or use it inside a word-document. Thanks.

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• OSX: Mimic Ubuntu IP Masquerading via iptables with ipfw

  - by Dogbert

  Good day, I am attempting to replicate a setup I have between a router and an Ubuntu PC, and have the same setup working on my MacBook (10.6, Snow Leopard). First, I have a router that has a USB port. When I plug it into my Ubuntu PC, it creates an RNDIS connection, allowing me to connect to the router over the USB cable via an IP connection. When I plug it into my computer via USB, it gets assigned an IP address of 172.16.84.1, and a new adapter appears when I type ifconfig. I can then SSH into the device via ssh [email protected]. When I log in to the device, I flush the routes, then create the default route: admin@localhost> route -f admin@localhost> route add default 172.16.84.2 Now, in my Ubuntu machine, I use iptables to enable IP masquerading: root@Valhalla> sudo iptables -t nat -A POSTROUTING -s 172.16.84.2 -j MASQUERADE Once this is all done, the router has internet access over the USB connection to my PC. I am trying to replicate this exact setup on my MacBook now (Snow Leopard), but iptables does not exist for OSX, not even a Macports version exists. I have scoured through other questions on StackOverflow that cover the usage of the ipfw command, which apparently works as a drop-in replacement for iptables. However, the syntax is significantly different, and I'm pretty much lost. Does anyone with some experience with ipfw have some suggestions on how I could accomplish this and create a NAT connection via IP masquerading like I could with my Ubuntu PC? Thank you for your assistance.

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• Getting a TTY in a Connectback Shell

  - by Asad R.

  I'm often asked by friends to help with small Linux problems, and more often than not I'm required to login to the remote system. Usually there are a lot of issues with making an account and logging in (sometimes the box is behind a NAT device, sometimes SSHD isn't installed, etc.) so I usually just ask them to make a connect-back shell using netcat (nc -e /bin/bash ). If they don't have netcat I can just ask them to grab a copy of a statically compiled binary which isn't that hard or time consuming to download and run. Though this works well enough for me to enter simple commands, I can't run any apps that require a tty (vi, for example) and can't use any job control functions. I managed to bypass this issue by running in.telnetd with a few arguments within the connect-back shell that would assign me a terminal and drop me to a shell. Unfortunately in.telnetd isn't usually installed by default on most systems. What's the easiest way to get a fully functional connect-back terminal shell without requiring any non-standard packages? (A small C program that does the job would be fine as well, I just can't seem to find much documentation on how a TTY is assigned/allocated. A solution that doesn't require me to plough through the source code for SSHD and TELNETD would be nice :))

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• Quick, Linux-compatible unit-aware calculator

  - by endolith

  I want to be able to press a keyboard combination, start typing a mathematical expression that includes units and slightly advanced math (not just a four-function calculator), and get a result immediately, in units that I specify, that I can copy and paste. Currently I open Firefox and press Ctrl+K, type in the search box, and it usually gives me a result in the drop-down from Google Calculator. It doesn't always, though, so I press "=" at the end, wait for a result, remove the equals, wait for a result, realize it doesn't understand the way I typed a unit, open the result in a new tab, etc. it sucks. Wolfram Alpha is smarter, but very much slower, and the output is all images, not text, and I don't have a quick widget for it, if such a thing could even exist. GNU units has a ton of units, which is great, and I can define my own units, which is great, but they have to be written in specific, unintuitive ways, it doesn't handle much advanced math, and I'd need to open a terminal, start units, etc. I hate the command line. I wasted a lot of time trying to make front-ends for units in Deskbar and Launchy, but I'm not a real coder and I don't use either of those anymore. Any other solutions or enhancements of these?

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• Changing the interface language in Windows 7 Home Premium

  - by Cristián Romo

  A friend of mine has recently purchased a laptop in the U.S. that has Windows 7 Home Premium on it with an English interface. Not being a native English speaker, I'm trying to change the interface language to traditional Chinese. I've looked through the Control Panel in search of something that might let me change the interface language. Naturally, I looked at the Region and Language section and managed to change the formats the computer uses and install a working keyboard, but I haven't found a way to change the interface language. Upon doing some research, I found out that there are two kinds of interface packs, Multilingual User Interface (MUI) and Language Interface Packs (LIP). It seems that MUIs can only be installed through Windows Update, so I looked through the list of updates. To my dismay, the language packs are not present. The optional updates tab doesn't even show up. Many sites show a drop down menu the under Keyboards and Languages tab in the Region and Language options, yet it doesn't show up for me. We also don't have the Windows 7 DVD which might contain this useful file. As far as the LIPs go, I can't find one in Chinese at all, let alone traditional Chinese. Can the interface language be changed in Home Premium at all? If it can, how would I do so?

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• Thunderbird: how to move mails into correct thread? (mailing lists)

  - by unor

  I'm subscribed to some mailing lists and every day people reply to a wrong mail (or they don't reply at all), so that their mail lands in the wrong (or a new) thread. I set the mail display in "View ? Sort by" to "Threaded". Example: mailing list "Foobar": [Foobar] random topic Re: [Foobar] random topic Re: [Foobar] random topic Re: [Foobar] random topic Re: [Foobar] random topic [Foobar] I'm John Doe Re: [Foobar] I'm John Doe Re: [Foobar] Welcome, John Re: [Foobar] random topic There are two discussions, one about "random topic", one about "John Doe". The subject line changes in the discussion about John Doe, which is fine (no problem here). But the last mail should be pigeonholed in the first thread. Instead it is at the top-level. Now, how can I move that last mail into the correct thread? I tried to drag&drop it at the mail I think it should be a reply to, but this doesn't work. I think theoretically it should be possible by fiddling with the mail headers after receiving the mail, but this doesn't seem to be a comfortable way.

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• Apache 2 proxy for Tomcat 7

  - by hsnm

  Following the how-to, I wanted to make a proxy for traffic to the address /app to be processed by Tomcat 7. I added this to my httpd.conf: LoadModule proxy_module {path-to-modules}/mod_proxy.so LoadModule deflate_module modules/mod_deflate.so ProxyPass /app http://localhost:8081 ProxyPassReverse /app http://localhost:8081 I also have this on my server.xml: <Connector port="8081" enableLookups="false" acceptCount="100" connectionTimeout="20000" proxyName="localhost" proxyPort="80"/> And I have the folder /var/lib/tomcat7/webapps/app with my application files. I restarted both Tomcat 7 and Apache 2 after doing the configurations above. Problem: When navigating to my webpage.com/app, I get the error 500. I consulted apache logs, it says: [warn] proxy: No protocol handler was valid for the URL /app. If you are using a DSO version of mod_proxy, make sure the proxy submodules are included in the configuration using LoadModule. Update: This is running in ubuntu. I resolved this by adding LoadModule proxy_http_module modules/mod_proxy_http.so to my httpd.conf. Now I have another question: How can I make this proxy to work on SSL through port 443?

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• running red5 on port 80

  - by ArneLovius

  I have a red5 application http://code.google.com/p/openmeetings that runs under red5, and is accessible on port 5080 and 8443 I've installed it on Ubuntu 10.04 The eventual aim is to have it accessible via https on 443 instead of 8443, but I thought I would initially try on 80 so that any issues were just down to the port configuration and not SSL certificates. I've tried changing the port from 5080 to 80 in the red5.properties file, but it fails to start. In the red5.log I have seen ERROR o.a.coyote.http11.Http11Protocol - Error initializing endpoint java.net.BindException: Permission denied /0.0.0.0:80 In the error.log I have seen ERROR o.a.coyote.http11.Http11Protocol - Error initializing endpoint java.net.BindException: Permission denied /0.0.0.0:80 and ERROR org.red5.server.tomcat.TomcatLoader - Error loading tomcat, unable to bind connector. You may not have permission to use the selected port org.apache.catalina.LifecycleException: Protocol handler initialization failed: java.net.BindException: Permission denied /0.0.0.0:80 There is nothing else installed or running on port 80, so I presume that this is a "needs to be root" situation. I would rather not run an Internet accessible web service as root. I know that Tomcat can run on port 80 by changing “#AUTHBIND=no” to “AUTHBIND=yes” in /etc/default/tomcat6 but I have not been able to find anything similar for red5. Am I on a hiding to nothing, or is there better way than running as root ? Thanks!

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• Repairing inconsistent pages in database

  - by Raj

  We have a SQL 2000 DB. The server crashed due to Raid array failure. Now when we run DBCC CHECKDB, we get an error that there are 27 consistency errors in 9 pages. When we run DBCC PAGE on these pages, we get this: Msg 8939, Level 16, State 106, Line 1 Table error: Object ID 1397580017, index ID 2, page (1:8404521). Test (m_freeCnt == freeCnt) failed. Values are 2 and 19. Msg 8939, Level 16, State 108, Line 1 Table error: Object ID 1397580017, index ID 2, page (1:8404521). Test (emptySlotCnt == 0) failed. Values are 1 and 0. Since the indicated index is non-clustered and is created by a unique constarint that includes 2 columns, we tried dropping and recreating the index. This resulted in the following error: CREATE UNIQUE INDEX terminated because a duplicate key was found for index ID 2. Most significant primary key is '3280'. The statement has been terminated. However running Select var_id,result_on from tests group by var_id,result_on having count(*)>1 returns 0 rows. Here is what we are planning to do: Restore a pre-server crash copy of the DB and run DBCC CHECKDB If that returns clean, then restore again with no recovery Apply all subequent TLOG backups Stop production app, take a tail log backup and apply that too Drop prod DB and rename the freshly restored DB to make it prod Start prod app Could someone please punch holes in this approach? Maybe, suggest a different approach? What we need is minimum downtime. SQL 2000 DB Size 94 GB The table that has corrupt pages has 460 Million+ rows of data Thanks for the help. Raj

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• Connect to Postgres remotely, open port 5432 for Postgres in iptables

  - by Victor

  I am trying to connect to Postgres remotely but I need to open port 5432 in iptables. My current iptables configuration is as follows: *filter # Allows all loopback (lo0) traffic and drop all traffic to 127/8 that doesn't use lo0 -A INPUT -i lo -j ACCEPT -A INPUT ! -i lo -d 127.0.0.0/8 -j REJECT # Accepts all established inbound connections -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT # Allows all outbound traffic # You can modify this to only allow certain traffic -A OUTPUT -j ACCEPT # Allows HTTP and HTTPS connections from anywhere (the normal ports for websites) -A INPUT -p tcp --dport 80 -j ACCEPT -A INPUT -p tcp --dport 443 -j ACCEPT # Allows SSH connections # # THE -dport NUMBER IS THE SAME ONE YOU SET UP IN THE SSHD_CONFIG FILE # -A INPUT -p tcp -m state --state NEW --dport 30000 -j ACCEPT # Allow ping -A INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT # log iptables denied calls -A INPUT -m limit --limit 5/min -j LOG --log-prefix "iptables denied: " --log-level 7 # Reject all other inbound - default deny unless explicitly allowed policy -A INPUT -j REJECT -A FORWARD -j REJECT COMMIT What would I have to add in iptables to open the port? I'm trying to install phppgadmin on a different server to access the postgres database. Thank you.

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• Does a Windows 7 dvd only have one language?

  - by user326639

  I'm a Dutch developer living in Spain. I recently composed a new computer from new parts and I installed Windows 7 Professional 64 bit (OEM) on it. On the web site of the on-line shop there was a note saying "language: Spanish". Because my English is quite a bit better than my Spanish, but mainly because it is much easier to find information on the web in English, I want my OS to be in English. I asked the on-line shop if they also sold the UK version of Windows 7 but they assured me that "all Windows 7 versions are multi-language". With the installation of XP a few years ago, I remember that I was offered the option English or Spanish while the installation process was still in the DOS-like (non-graphical) screen. While installing Windows 7, I did not see any non-graphical screen and the first time I was asked about the language, was in a drop-down list that contained only Spanish. I know about the language pack possibility of Windows 7, but this is not available on Professional. Even if I had Ultimate, I don't know if it would be possible to install Windows in Spanish, and then add English as a second language from a language pack. I get the impression that English has to be the base-language. Furthermore, I am a bit sceptical until I'd see it in action. What happens with shortcuts (i.e. Select All: ctrl-a in English / ctrl-e in Spanish, and what about logging messages in Event Viewer, etc) So can anybody tell me how it works with languages in Windows 7? Have I been misinformed by the computer shop? Could it be that OEM versions of Windows are single language an a full installation is not?

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• SQL Full-Text indexing not populating

  - by Sam

  Hi, We installed a clustered SQL 2005 installation on windows 2008 and reattached our san drives from another machine and restored to do a migration to new hardware. There have been a few minor issues, but this one has me stuck. Trying to populate Full-Text indexes is not working. I create a basic table with some simple text in a new database and get the same results as old indexes. 2010-09-27 10:30:46.85 spid19s Informational: Full-text Full population initialized for table or indexed view '[SQL_DBA].[dbo].[CIS_Report_Executions]' (table or indexed view ID '1767677345', database ID '5'). Population sub-tasks: 1. 2010-09-27 10:31:15.36 spid19s Error '0x80070003' occurred during full-text index population for table or indexed view '[SQL_DBA].[dbo].[CIS_Report_Executions]' (table or indexed view ID '1767677345', database ID '5'), full-text key value 0x000001DF. Attempt will be made to reindex it. 2010-09-27 10:31:15.37 spid19s The component 'MSFTE.DLL' reported error while indexing. Component path 'D:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Binn\MSFTE.DLL'. 2010-09-27 10:31:15.37 spid19s Error '0x80070003' occurred during full-text index population for table or indexed view '[SQL_DBA].[dbo].[CIS_Report_Executions]' (table or indexed view ID '1767677345', database ID '5'), full-text key value 0x000001E0. Attempt will be made to reindex it. The rebuild/repopulate procedure finishes, but I get zero rows in the index. The .dll in the message is present and the service accounts have access to this. My FTData also has data in it, so it seems there wouldn't be permission issue on this folder. Application throws this error: “PHP Warning: mssql_query() [function.mssql-query]: message: Full-text catalog 'ikm_PageIndex_FText' is in an unusable state. Drop and re-create this full-text catalog. (severity 16) in E:\Inetpub\knowledgebase_insidemesa\lib\database\mssql.php on line 154” A microsoft discussion is the only post I found which had claimed to fix this - said it was registry related, but then didn't post the fix.

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• nginx rewrite or internal redirection cycle

  - by gyre

  Im banging my head against a table trying to figure out what is causing redirection cycle in my nginx configuration when trying to access URL which does not exist Configuration goes as follows: server { listen 127.0.0.1:8080; server_name .somedomain.com; root /var/www/somedomain.com; access_log /var/log/nginx/somedomain.com-access.nginx.log; error_log /var/log/nginx/somedomain.com-error.nginx.log debug; location ~* \.php.$ { # Proxy all requests with an URI ending with .php* # (includes PHP, PHP3, PHP4, PHP5...) include /etc/nginx/fastcgi.conf; } # all other files location / { root /var/www/somedomain.com; try_files $uri $uri/ ; } error_page 404 /errors/404.html; location /errors/ { alias /var/www/errors/; } #this loads custom logging configuration which disables favicon error logging include /etc/nginx/drop.conf; } this domain is a simple STATIC HTML site just for some testing purposes. I'd expect that the error_page directive would kick in in response to PHP-FPM not being able to find given files as I have fastcgi_intercept_errors on; in http block and nave error_page set up, but I'm guessing the request fails even before that somewhere on internal redirects. Any help would be much appreciated.

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• Raid-5 Performance per spindle scaling

  - by Bill N.

  So I am stuck in a corner, I have a storage project that is limited to 24 spindles, and requires heavy random Write (the corresponding read side is purely sequential). Needs every bit of space on my Drives, ~13TB total in a n-1 raid-5, and has to go fast, over 2GB/s sort of fast. The obvious answer is to use a Stripe/Concat (Raid-0/1), or better yet a raid-10 in place of the raid-5, but that is disallowed for reasons beyond my control. So I am here asking for help in getting a sub optimal configuration to be as good as it can be. The array built on direct attached SAS-2 10K rpm drives, backed by a ARECA 18xx series controller with 4GB of cache. 64k array stripes and an 4K stripe aligned XFS File system, with 24 Allocation groups (to avoid some of the penalty for being raid 5). The heart of my question is this: In the same setup with 6 spindles/AG's I see a near disk limited performance on the write, ~100MB/s per spindle, at 12 spindles I see that drop to ~80MB/s and at 24 ~60MB/s. I would expect that with a distributed parity and matched AG's, the performance should scale with the # of spindles, or be worse at small spindle counts, but this array is doing the opposite. What am I missing ? Should Raid-5 performance scale with # of spindles ? Many thanks for your answers and any ideas, input, or guidance. --Bill Edit: Improving RAID performance The other relevant thread I was able to find, discusses some of the same issues in the answers, though it still leaves me with out an answer on the performance scaling.

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