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• Local IP address same as Google's external

  - by GRIGORE-TURBODISEL

  I'm exampling Google's IPs, but you get the idea. What happens if somebody configures a router's LAN address pool to range from 62.231.75.2 to 62.231.75.255, then his computer's IP address to 62.231.75.232 and someone else on the network tries to access Google? Or better off, is there any case in which someone in that network can, by merely attempting to access Google, accidentally bump into another computer on the network?

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• Squid on windows loadbalancing only to one server

  - by Martin L.

  After thousands of googles and trying days i cant get the load balancer/failover in squid on windows to work. Iam using squid 2.7. My webservers are 2 single NIC lighttpd and one dual nic lighttpd. server1 in this example is running squid on port 80 and lighttpd on port 8080 (just to test) Requirements: All 3 webservers running lighttpd should be balanced two option for load balancing: Best would be if server1 is busy server2 takes over, if server2 is busy server3 takes over, etc.. Round robin style evenly distributed load. Eg server1 takes first call, server2 second etc.. All requests should be treated the same way (no url rewriting or so on) Sent host headers have to be redirected to every server as http host header, speaking of "server1", "server1.company.internal" and "10.211.1.1". My approach: acl all src all acl manager proto cache_object http_port 80 accel defaultsite=server1.company.internal vhost #reverse proxy entries cache_peer 10.211.2.1 parent 8080 0 no-query originserver round-robin login=PASS name=server1_nic1 cache_peer 10.211.1.2 parent 80 0 no-query originserver round-robin login=PASS name=server2_nic1 cache_peer 10.211.2.3 parent 8080 0 no-query originserver round-robin login=PASS name=server3_nic1 cache_peer 10.211.2.4 parent 8080 0 no-query originserver round-robin login=PASS name=server3_nic2 #decl of names of squid host acl registered_name_hostdomain dstdomain server1.company.internal acl registered_name_host dstdomain server1 #ip of squid host acl registered_name_ip dstdomain 10.211.2.1 # access: redirects the correct squid hostname http_access allow registered_name_hostdomain http_access allow registered_name_host http_access allow registered_name_ip http_access deny all cache_peer_access server1_nic1 allow registered_name_hostdomain cache_peer_access server1_nic1 allow registered_name_host cache_peer_access server1_nic1 allow registered_name_ip cache_peer_access server2_nic1 allow registered_name_hostdomain cache_peer_access server2_nic1 allow registered_name_host cache_peer_access server2_nic1 allow registered_name_ip cache_peer_access server3_nic1 allow registered_name_hostdomain cache_peer_access server3_nic1 allow registered_name_host cache_peer_access server3_nic1 allow registered_name_ip cache_peer_access server3_nic2 allow registered_name_hostdomain cache_peer_access server3_nic2 allow registered_name_host cache_peer_access server3_nic2 allow registered_name_ip cache_peer_access server1_nic1 deny all cache_peer_access server2_nic1 deny all cache_peer_access server3_nic1 deny all cache_peer_access server3_nic2 deny all never_direct allow all Problems: Load balancer does not load balance other than to first server. Only if the first server is killed in any way the second will take over. I have seen the others working at some point, but definitely not as the intended load balancing described above. If the cache_peer_access is not defined sometimes the wrong hostname is sent to the backend webserver and this always depends on the defaultsite= parameter. Probably because the host header on the request to squid is not set and its replaced by defaultsite. Leaving out defaultsite didnt solve the problem. The only workaround i found for this is the current approach with cache_peer_access. Questions: Does the cache_peer_access influence the round-robin? Is there a better workaround to pass the host header to the backed webservers? Which parameters do increase the speed of load balancing or does anyone have a better approach? -Martin

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• file split tool for Windows

  - by George2

  Hello everyone, I am using Windows 7 and I have a big text file (log file) which needs to be splitted into small files. Any good tool to use? I prefer to use line based split tool if available. It is better free and easy to use. thanks in advance, George

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• My email server is blacklisted what can I do

  - by Funky Si

  I have discovered that my email server has been blacklisted by http://www.five-ten-sg.com What affect is that going to have on my sending and receiving emails and is there anything I can do about it to fix it. All the emails I am sending are going out by IIS6 SMTP server, so any suggestions for how to configure this better gratefully received.

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• Deploy Xen

  - by Marek Jelen

  I would like to deploy Xen virtualization, however I definately not sure which way to go. Citrix Xen Server has (AFAIK) better managment tools, but does not provide software raid. Ubuntu / CentOS has Xen installations and support software RAID. Is it worth to go and buy HW RAID or just stick with SW RAID and Xen budnled with linux distribution. Which way would you suggest? Are there any other things I should consider?

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• Enhanced Explorer for Windows XP? [closed]

  - by iceman

  Possible Duplicate: Replacement for Windows Explorer? Is there a better explorer for Windows XP with Konqueror-like features (like dual panes), etc. Specially an enhanced integrated search option like in Vista? There are different products which cumulatively present something similar like xplorer2, Google Desktop Search or Windows Grep. But what about one integrated product?

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• Seeking past end of file causes Apache hang, and it never restarts.

  - by talkingnews

  I've actually solved my problem with a better script, but I'm still left wondering why Apache2 hung completely - this is an out-of-the-box ISPCONFIG 3.03 install, everything bang up to date, running perfectly. Until... The troublesome but innocent-looking script: $fp = fopen("/var/log/ispconfig/cron.log", "r"); fseek($fp, -5000, SEEK_END); $line_buffer = array(); while (!feof($fp)) { $line = fgets($fp, 1024); $line_buffer[] = $line; $line_buffer = array_slice($line_buffer, -10, 10); } foreach ($line_buffer as $line) { echo $line; } You get the idea, just a script I found on a forum somwehere. I did this for various logs, since it's a nice easy window on what's occurring (in a protect dir, of course!). One day, the logs having grown large an me having sorted all my cron, scripting and mail queue errors, I thought I was time to start afresh. updated, rebooted, archived and deleted the logs. When I ran my script a couple of hours later, it hung. And hung. 8 minutes I waited. Chrome timed the page out, of course, but the server never came back to life. htop showed /usr/sbin/apache2 -k restart using 100% CPU. Never came back until I did a service apache2 restart. Ran fine, as soon as I hit that logfile again...dead. So, I worked out it was the logfile script, and I worked out that seeking beyond the end of the file wasn't good, and I found a better script http://www.php.net/manual/en/function.fseek.php#90450 But what I'm left wondering is... why didn't something restart or kill the process? How was one hanging page able to bring down the whole server? It's running suphp. I say "out of the box", I've tweaked mysql and apache to fork and reserve sensible amounts of processes for the 512Mb RAM the VPS has, and it'll handle multiple refreshes of large pages, and hadn't hung before. Any ideas how I'd avoid this? Google isn't my friend in this instance beyond the reccs. above about number of processes vs RAM available.

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• excel truncating phone number

  - by user15586

  I have a csv file that contains cells such as "+1.8882789780". When viewed in Excel, it loses the last digit possibly due to excel truncation. Is there a way to either change the setting in Excel to prevent this from happening or change the csv file in some way? One way is to wrap single quotes around the cell contents in addition to the double quotes. "'+1.8882789780'" Is there a better way?

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• Workstation video card in a laptop?

  - by david

  I am going to buy an HP EliteBook 8740w. The problem is it comes with Nvidia quadro 2800m and ati 7820m firepro 3d? please advise which is better?

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• IIS 7.5 log to: sql server vs file

  - by stacker

  I want to know if get IIS to log directly to the sql server is resource costive, and a better solution maybe generate log files, and each hour import this files to sql server. Does it VERY big cost to log to sql server each request directly? The pages are open connection to the database anyway for each request.

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• As my tables grew to more than a few hundreds, MySQL performance degraded

  - by Mark Austin

  As long as my tables were less than 100, MySQL performed reasonably well but when they started to grow to more than a few hundreds, it (MYSQL) has become extremely slow. Now my tables are 1k and are very small and most contain less than 20-30 records. Is there a specific MySQL setting which I should consider, in order for MySQL to perform better with large numbers of tables?

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• How do you google bad reviews? [closed]

  - by zlog

  The first thing I like to do before I make technology choices or gadget purchases is find bad reviews of the things. That way, taking into consideration of the potential biases of the reviewer, I can evaluate the product/service for the worse it can be. How do people google (or search in general) for bad reviews? I usually just try googling "bad review [product/service]" or "[product/service] sucks", but I'm sure there are better ways.

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• good player to use for audio books

  - by doug

  Hi there i just find that is useful to listen audio books, but when it is about tacking notices, the play/pause, adding bookmarks is impossible with the regular players(windows media player, vlc, bsplayer, winamp). Do you know a better alternative to that?

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• How to give direct Out put to speaker via Microphone?

  - by Wazdesign

  I want to give direct out put to the Speaker of my laptop, I am able to do that by recording then play.. but I want to do it live. Please help me to find the better option. thanks in advance

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• Alternative to middle click for Linux in Parallels on a MacBook?

  - by Roland Swingler

  I'm running Ubuntu on Parallels on a MacBook, and there is no middle-click on the MacBook trackpad - which is annoying because it means you can't do X's paste action. Is there an alternative? I'm hoping there is a keyboard binding to X's paste or better a way to bind a keyboard key/combination to the middle-click action. Edit: I know about the emulate three-button mouse option, but that won't work for me because the trackpad only allows you to click one button at a time

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• Sympa install on CentOS/Fedora

  - by ericl42

  Has anyone installed the Sympa mailing list software on Fedora or CentOS? I am not a huge fan of their instructions on sympa.org. I have installed the program and emails are working, but I can't seem to get the web site to work. Any help or links to a better install guide would be greatly appreciated.

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• When Intel/AMD plan to use new CPU sockets? [closed]

  - by psihodelia

  It is very expensive always to use most modern hardware especially buying new mainboard if only a new CPU is desired. It would be much better if one knows whether and when major CPU producers plan to change CPU sockets. Do you know when it is planed to change sockets the next time? I am particularly interested in not buying Intel i7 CPU if a new CPU will be released soon with not compatible pins.

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• 2nd Year College - Learning - Microsoft Server Products

  - by Ryan

  As the title says, I just finished my first year of college (majoring in Software Engineering). Fortunately my school likes Microsoft enough, and I can get pretty much anything I want that Microsoft sells. I also can get IBM Websphere and the like for free as well. Earlier this year, I set up an oldish computer (2.6 Pentium D, x64) to run ubuntu server headless. I'm predominately a Java developer, so Apache, Maven, Nexus, Sonar, SVN, etc made it onto the machine. It worked really well for personal and school projects, especially team projects (quick ramp up). Anyways, I started to pick up C# to complement my Java knowledge (don't judge me :P), and am interested in working with some of the associated Microsoft equivalents. The machine currently has the Ubuntu install, as well as Windows 7 Ultimate. I do all of my actual development work off my laptop, also running Windows 7 Ultimate. I was wondering what software you would recommend putting on the machine. I’m not actually serving anything off the machine itself, but in Ubuntu I had it doing integration tests with Hudson on every commit, and profiling my applications, etc, etc. The machine would be running headless, and I would remote into it. Here is what I am currently leaning towards / wondering about: Windows 7 Ultimate vs Windows Server 2008 (R2) (no one is really clear why I should go with one over the other) Windows Team Foundation Sharepoint (Never used it before, kind of meh about it) IBM Websphere or Glassfish (Some Java EE web server) SQL Server 2008 A DVCS In order to better control product conflicts / limit resource use, I’m wondering if I should install things into virtual machines (I can get VmWare or Microsoft Virtualization Products) I also plan on installing everything I had running under Linux (it’s almost entirely Java based development software, so it’ll run on both, only reason I went with ubuntu during the year was because the apache build seemed better). I’m primarily looking to become familiar with enterprise software development tools, as well as get something functional that will help my development process. (IE, I’ll still use project and assign tasks even though I might be the only one to assign tasks to, just to practice doing so). Is there any other software / configuration details I should explore? Opinions on my current list? I primarily use C#, Java, and PHP. I'm familiar with ruby, and python as well. Thanks!

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• Ubuntu 10.04 says wired network disconnected, but it works

  - by mistily

  I've installed ubuntu 10.04, hoping to get rid of the 9.10 errors. (Nvidia driver didn't work quite properly, had some problems with clicking in flash, and I had -and still have- wired network working, but ubuntu said that it's disconnected) So the Nvidia driver is better now, but the network error is the same. I still have a working wired network connection, but when it starts says that it is disconnected. Notification area tells me the same thing. Why is that?

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• Is there a way to make Notepad++ auto-complete words on {TAB} instead of {ENTER}?

  - by Andrew Cheong

  Is there a way to make Notepad++ auto-complete words on Tab instead of Enter? Currently, if want to type, say, frame, then Enter to begin a new line, instead the Enter will select the first auto-complete suggestion, like frameElement:      I do want the auto-complete feature, but I'd rather have a key like Tab do the actual selection, because Enter is frequently purposed toward starting a new line, whereas Tab is rarely used to indent after a word (since indenting is usually done at the start of lines), and so perhaps would be better repurposed toward auto-completion.

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• Intel Core 2 Duo E6600 versus AMD Athlon II X2 3GHZ

  - by Billy ONeal

  Hello :) I have an Intel Core 2 Duo E6600 (2.4GHZ) in my current desktop, and I have a newer machine with an AMD Athlon II X2 3.0GHZ. I'm wondering how the systems will perform in comparison to one another. I'd like to use the AMD because it's 45nm and uses less power, but I don't want to do so at a loss in perforamnce. Which should perform better? Billy3

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• How to convert a really big HTML file to PDF in Windows

  - by PeterStrange

  We have a few really large HTML files (60-100 MB) that we cannot convert to PDF with any reliability. Adobe Acrobat 9 crashes - hits the 2GB limit for applications. Open Office converts, but removes some of the anchors (). ActivePDF webgrabber crashes. Is using a 64 bit situation an option for this type of thing? I see a bunch of options out there, but can they do better than Adobe Acrobat 9 itself?

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• Is there any benefit to using IPv6 on my home network?

  - by Macha

  I know that IPv6 is the future because there is only 4 billion IPv4 address, but on a home network, you are not going to have 4 billion users. So are there any other benefits that would make IPv6 on a home network better than using IPv4?

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• Using more recent kernel for Xen Dom0 in production.

  - by thelsdj

  Does anyone have experience running Xen dom0 on a more recent kernel than the stock 2.6.18? What host distro are you running? What release of Xen (or hg/git changeset)? What set of patches are you using on kernel source? (Has anyone got the pvops dom0 stuff working in production or is it better to stick with something like the SUSE patches? Any other tips and tricks to running a more recent kernel version as dom0 would be helpful.

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• Linux compatible touchscreen monitor

  - by jrtokarz

  Can anybody recommend a linux compatible touchscreen monitor, the criteria are: 19inch or greater 1920x1080 or better only single touch required be able to operate in portait mode We currently have some IIyama Prolite MTS2250MS monitors but these do not natively support portait mode and we have had little success getting the touch functionality working in Linux (although they do report themselves as HID devices when plugged in). So an alternative to suggesting a monitor would be pointers to information on how we could get the IIyama monitor working in Linux.

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