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• Embedded linux Development learning

  - by user1797375

  I come from a windows background and i am proficient with the .net platform. For work, i need to bring up a custom embedded system platform. We have bought the pandaboard ES as the test platform. The application is to stream images over the wifi. If you think about it, we are building something similar to a netgear router - the only difference being when you log into the device it serves images. Because my background is in windows i am not quite sure how to start off with embedded linux development. in reading through various sites i have come to the conclusion that going to linux as development host is the best option. Can some one point to me in the right direction regarding the set up. I have a windows machine that will be used for development purposes. I can either do a virtual box or setup a partition for linux. But the finer details are what throwing me off..what i need to know is 1) once i install linux what other software do I need - Code blocks, 2) what about toolchain 3) How to debug - through serial port ? 4) Is there a way to send the image built directly to the CF card? Thanks

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• Smarter System Alerts

  - by mellowsoon

  We have a pretty simple system setup, where I get text messages when there is a system problem. It's nothing fancy. I send an email to my phone number within my logging class for alert levels. It works well enough, but it has one major flaw: A small hiccup in the system/site can turn into dozens of rapid fire text messages. Sometimes non-stop text messages until I log into the system and fix the problem. So I'm looking for pointers on software or services I can use that deal with alerts in a smarter way. Perhaps something that only sends me alerts X number of times within Y number of minutes. I'm not looking for a full monitoring suite. We already deal with that in house. I'm only looking to tackle this single problem.

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• Calibrating Displays in Boot Camp 3.0 on MacBook with external display

  - by Brian Reiter

  The LED display on my MacBook Pro is very blue-ish without correction. In OS X the advanced mode of the display color calibration tool is excellent and I can largely color-correct the display. Windows 7 incorporates a color calibration tool but it is less powerful. It largely consists of a software gamma correction tool and color charts to use with the hardware controls on your display (which don't exist on a notebook or an apple external display). How can I color-correct Windows in Boot Camp to match the OS X correction without using a Spyder or other special calibration hardware?

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• How should I configure TRIM Support for LVM logical volumes?

  - by Zack Perry

  I am setting up a notebook for software demo purpose. The machine has a Intel Core i7 CPU, 8GB RAM, a 128GB SSD, and runs Ubuntu 12.04 LTS 64bit desktop. As it is, the SSD is configured to have a single volume group, with /boot, /swap, and / all in their respective logical volumes. They collectively consume 30GB space. I plan to use the remaining for logical volumes for KVM guests, all run Ubuntu 12.04 Server I would like to ensure that the SSD is utilized optimally. Although on this site, there are some great info about setting up TRIM support for file system setups that do not involve LVM, I have not found explicit guide regarding my planned setup. I did found this page which talks about adding issue_discards in /etc/lvm/lvm.conf. But in said file on my machine, I didn't find the cited content. I double-checked man lvm.conf(5), didn't see any mentioning of this option either. Thus, I'm not sure what to do. Furthermore, even say adding the option is the right thing to do, should I in my machine's /etc/fstab still add mount options such as noatime etc? Any tips, pointers, and/or further guidance are greatly appreciated.

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• Apache has a 2GB file limit on a CIFS network drive?

  - by netvope

  Setup: A Windows and a Ubuntu Server are hosted in VMware ESXi I have a a 6GB file on a Windows share The Windows share is mount on Ubuntu with smbmount A symlink pointing to the 6GB file is created in a public_html directory, which is readable by Apache The problem: wget gets an error Connection closed at byte 2130706432. Retrying. after downloading 2130706432 bytes (exactly 2032 MiB, and is the same every time) Apache returns 206 Partial Content without showing any errors in the log Same error even if I download from localhost Similar error when Firefox is used instead of wget No error if I md5sum or cp the file on Ubuntu, suggesting that smbmount and the Windows Server are OK with 6GB files. No error if Apache serve a 6GB file from the local disk, suggesting that Apache has no problems handling 6GB files. Any ideas why Apache/symlink/smbmount/Windows would cause an error when used together? How can I fix the problem? Software used: VMware ESXi 4 Update 1 Windows Server 2008 R2 Ubuntu 8.04 Server, vmxnet3 Apache 2.2.8 mount.cifs 1.10-3.0.28a

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• Progress 4GL and DB to Oracle and cloud

  - by llaszews

  Getting from client/server based 4GLs and databases where the 4GL is tightly linked to the database to Oracle and the cloud is not easy. The least risky and expensive option (in the short term) is to use the Progress OpenEdge DataServer for Oracle: Progress OpenEdge DataServer This eliminates the need to have to migrate the Progress 4GL to Java/J2EE. The database can be migrated using SQLWays Ispirer: Ispirer SQLWays ProgressDB migrations tool The Progress 4GL can remain as is. In order to get the application on the cloud there are a few approaches: 1. VDI - Virtual Desktop is a way to put all of the users desktop in a centralized environment off the desktop. This is great in cases where it is just not one client/server application that the user needs access too. In many cases, users will utilize MS Access, MS Excel, Crystal Reports and other tools to get at the Progress DB and other centralized databases. Vmware's acquistion of Wanova shows how VDI is growing in usage. Citrix is the 800 pound gorilla in the VDI space with Citrix WinFrame (now called XenDesktop). Oracle offers a VDI solution that Oracle picked up when it acquired Sun. 2. Hypervisor Server Virtualization - Of course you can place applications written in client/server languages like Progress 4GL buy using server virtualization from Oracle, VMWare, Microsoft, Citrix and others. 3. Microsoft Remote Desktop Services (aka: Terminal Services Client) The entire idea is to eliminate all the client/server desktop devices and connections which require desktop software and database drivers. A solution to removing database drivers from the desktop is to use DataDirect SQLLink

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• New ZFSSA code release - April 2012

  - by user12620172

  A new version of the ZFSSA code was released over the weekend. In case you have missed a few, we are now on code 2011.1.2.1. This minor update is very important for our friends with the older SAS1 cards on the older 7x10 systems. This 2.1 minor release was made specifically for them, and fixes the issue that their SAS1 card had with the last major release. They can now go ahead and upgrade straight from the 2010.Q3.2.1 code directly to 2011.1.2.1. If you are on a 7x20 series, and already running 2011.1.2.0, there is no real reason why you need to upgrade to 1.2.1, as it's really only the Pandora SAS1 HBA fix. If you are not already on 1.2.0, then go ahead and upgrade all the way to 2011.1.2.1. I hope everyone out there is having a good April so far. For my next blog, the plan is to work off the Analytic tips I did last week and expand on which Analytics you want to really keep your eyes on, and also how to setup alerts to watch them for you. You can read more and keep up on your releases here: https://wikis.oracle.com/display/FishWorks/Software+Updates Steve   

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• why i7-860 is two times slower than E3-1220?

  - by javapowered

  I have financical trading software. It decodes fast/fix messages. I'm running same binaries on two different machines on very similar set of data. Software receive "messages" and decodes them. The general rule - longer message takes more time to decode: i7-860, Windows 7: Debug 18:23:48.8047325 count=51 decoding take microseconds = 300 Debug 18:23:49.7287854 count=53 decoding take microseconds = 349 Debug 18:23:49.7397860 count=110 decoding take microseconds = 516 Debug 18:23:49.7497866 count=92 decoding take microseconds = 512 Debug 18:23:49.7597872 count=49 decoding take microseconds = 267 Debug 18:23:49.7717878 count=194 decoding take microseconds = 823 Debug 18:23:49.7797883 count=49 decoding take microseconds = 296 Debug 18:23:49.7997894 count=50 decoding take microseconds = 299 Debug 18:23:50.7328428 count=101 decoding take microseconds = 583 Debug 18:23:50.7418433 count=42 decoding take microseconds = 281 Debug 18:23:50.7538440 count=151 decoding take microseconds = 764 Debug 18:23:50.7618445 count=57 decoding take microseconds = 279 Debug 18:23:50.7738452 count=122 decoding take microseconds = 712 Debug 18:23:50.8028468 count=52 decoding take microseconds = 281 Debug 18:23:51.7389004 count=137 decoding take microseconds = 696 Debug 18:23:51.7499010 count=100 decoding take microseconds = 485 Debug 18:23:51.7689021 count=185 decoding take microseconds = 872 Debug 18:23:51.8079043 count=49 decoding take microseconds = 315 Debug 18:23:52.7349573 count=90 decoding take microseconds = 532 Debug 18:23:52.7439578 count=53 decoding take microseconds = 277 Debug 18:23:52.7539584 count=134 decoding take microseconds = 623 Debug 18:23:52.7629589 count=47 decoding take microseconds = 294 Debug 18:23:52.7749596 count=198 decoding take microseconds = 868 Debug 18:23:52.8039613 count=52 decoding take microseconds = 291 Debug 18:23:53.7400148 count=132 decoding take microseconds = 666 Debug 18:23:53.7480153 count=81 decoding take microseconds = 430 Debug 18:23:53.7570158 count=49 decoding take microseconds = 301 Debug 18:23:53.7710166 count=156 decoding take microseconds = 752 Debug 18:23:53.7770169 count=45 decoding take microseconds = 270 Debug 18:23:54.7350717 count=108 decoding take microseconds = 578 Debug 18:23:54.7430722 count=52 decoding take microseconds = 286 Debug 18:23:54.7540728 count=138 decoding take microseconds = 567 Debug 18:23:54.7760741 count=160 decoding take microseconds = 753 Debug 18:23:54.8030756 count=53 decoding take microseconds = 292 Debug 18:23:55.7411293 count=110 decoding take microseconds = 629 Debug 18:23:55.7481297 count=48 decoding take microseconds = 294 Debug 18:23:55.7591303 count=84 decoding take microseconds = 386 Debug 18:23:55.7701309 count=90 decoding take microseconds = 484 Debug 18:23:55.7801315 count=120 decoding take microseconds = 527 Debug 18:23:55.8101332 count=53 decoding take microseconds = 290 Debug 18:23:56.7341861 count=121 decoding take microseconds = 667 Debug 18:23:56.7421865 count=53 decoding take microseconds = 293 Debug 18:23:56.7531872 count=127 decoding take microseconds = 586 Debug 18:23:56.7621877 count=58 decoding take microseconds = 306 Debug 18:23:56.7751884 count=138 decoding take microseconds = 649 Debug 18:23:56.8021900 count=53 decoding take microseconds = 288 Debug 18:23:57.7392436 count=139 decoding take microseconds = 699 Debug 18:23:57.7502442 count=121 decoding take microseconds = 548 Debug 18:23:57.7582446 count=61 decoding take microseconds = 301 Debug 18:23:57.7692453 count=98 decoding take microseconds = 500 Debug 18:23:57.7792458 count=94 decoding take microseconds = 460 Debug 18:23:57.8092476 count=41 decoding take microseconds = 274 Xeon E3-1220, Windows Server 2008 R2 foundation: Debug 18:28:57.5087967 count=117 decoding take microseconds = 255 Debug 18:28:57.5087967 count=85 decoding take microseconds = 187 Debug 18:28:57.5087967 count=55 decoding take microseconds = 155 Debug 18:28:57.5243967 count=86 decoding take microseconds = 189 Debug 18:28:57.5243967 count=53 decoding take microseconds = 139 Debug 18:28:57.5243967 count=52 decoding take microseconds = 153 Debug 18:28:57.5243967 count=55 decoding take microseconds = 146 Debug 18:28:57.5243967 count=103 decoding take microseconds = 239 Debug 18:28:57.5243967 count=83 decoding take microseconds = 182 Debug 18:28:57.5243967 count=85 decoding take microseconds = 180 Debug 18:28:57.5243967 count=80 decoding take microseconds = 202 Debug 18:28:57.5243967 count=58 decoding take microseconds = 135 Debug 18:28:57.5243967 count=55 decoding take microseconds = 140 Debug 18:28:57.5243967 count=81 decoding take microseconds = 183 Debug 18:28:57.5243967 count=74 decoding take microseconds = 172 Debug 18:28:57.5243967 count=80 decoding take microseconds = 174 Debug 18:28:57.5243967 count=88 decoding take microseconds = 175 Debug 18:28:57.5243967 count=55 decoding take microseconds = 131 Debug 18:28:57.5243967 count=80 decoding take microseconds = 182 Debug 18:28:57.5243967 count=80 decoding take microseconds = 183 Debug 18:28:57.5243967 count=101 decoding take microseconds = 231 Debug 18:28:57.5243967 count=58 decoding take microseconds = 134 Debug 18:28:57.5243967 count=57 decoding take microseconds = 126 Debug 18:28:57.5243967 count=57 decoding take microseconds = 134 Debug 18:28:57.5399967 count=115 decoding take microseconds = 234 Debug 18:28:57.5399967 count=106 decoding take microseconds = 225 Debug 18:28:57.5399967 count=108 decoding take microseconds = 241 Debug 18:28:57.5399967 count=84 decoding take microseconds = 177 Debug 18:28:57.5399967 count=54 decoding take microseconds = 141 Debug 18:28:57.5399967 count=84 decoding take microseconds = 186 Debug 18:28:57.5399967 count=82 decoding take microseconds = 184 Debug 18:28:57.5399967 count=82 decoding take microseconds = 179 Debug 18:28:57.5399967 count=56 decoding take microseconds = 133 Debug 18:28:57.5399967 count=57 decoding take microseconds = 127 Debug 18:28:57.5399967 count=82 decoding take microseconds = 185 Debug 18:28:57.5399967 count=76 decoding take microseconds = 178 Debug 18:28:57.5399967 count=82 decoding take microseconds = 184 Debug 18:28:57.5399967 count=54 decoding take microseconds = 139 Debug 18:28:57.5399967 count=54 decoding take microseconds = 137 Debug 18:28:57.5399967 count=81 decoding take microseconds = 184 Debug 18:28:57.5399967 count=136 decoding take microseconds = 275 Debug 18:28:57.5399967 count=55 decoding take microseconds = 138 Debug 18:28:57.5555968 count=52 decoding take microseconds = 140 Debug 18:28:57.5555968 count=53 decoding take microseconds = 136 Debug 18:28:57.5555968 count=54 decoding take microseconds = 139 Debug 18:28:57.5555968 count=55 decoding take microseconds = 138 Debug 18:28:57.5555968 count=57 decoding take microseconds = 134 Debug 18:28:57.5555968 count=53 decoding take microseconds = 136 Debug 18:28:57.5555968 count=80 decoding take microseconds = 174 Debug 18:28:57.5555968 count=74 decoding take microseconds = 175 Debug 18:28:57.5555968 count=57 decoding take microseconds = 133 Debug 18:28:57.5555968 count=57 decoding take microseconds = 149 Debug 18:28:57.5555968 count=100 decoding take microseconds = 262 Debug 18:28:57.5555968 count=56 decoding take microseconds = 156 Debug 18:28:57.5555968 count=55 decoding take microseconds = 165 From this test I see that E3-1220 is almost two times faster than i7-860. Is that possible? Because in the processors ratings these processors are about the same. Is it possible that this is because of cache or something? And if so which processor I better to buy to decode messages two more times faster?

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• Eclipse dissapears when minimized and will not come back (12.04 Unity)

  - by Kevin

  I have Ubuntu 12.04 x64 running Unity3d. I downloaded Eclipse from eclipse.org (not the software center) and created a desktop using gnome-desktop-item-edit. The resulting file is below, and I added it to the launcher on the left of the screen by dragging that file on. #!/usr/bin/env xdg-open [Desktop Entry] Version=1.0 Type=Application Terminal=false Icon[en_US]=/home/kevin/eclipse/icon.xpm Name[en_US]=Eclipse Exec=/home/kevin/eclipse/eclipse Name=Eclipse Icon=/home/kevin/eclipse/icon.xpm#!/usr/bin/env xdg-open However, when I minimize eclipse, eclipse disappears. There is no arrow to the left of the icon in the launcher like usual. And when I click on the launcher again, it tries to relaunch eclipse instead of bringing back the one that was minimized. Eclipse also does not show up when I alt-tab. I know it is still running because I can see it running with the system monitor. Note that Eclipse works properly until it is minimized. I have observed this behavior on two different computers now. Does anyone know how to fix it?

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• Where is the SQL Azure Development Environment

  - by BuckWoody

  Recently I posted an entry explaining that you can develop in Windows Azure without having to connect to the main service on the Internet, using the Software Development Kit (SDK) which installs two emulators - one for compute and the other for storage. That brought up the question of the same kind of thing for SQL Azure. The short answer is that there isn’t one. While we’ll make the development experience for all versions of SQL Server, including SQL Azure more easy to write against, you can simply treat it as another edition of SQL Server. For instance, many of us use the SQL Server Developer Edition - which in versions up to 2008 is actually the Enterprise Edition - to develop our code. We might write that code against all kinds of environments, from SQL Express through Enterprise Edition. We know which features work on a certain edition, what T-SQL it supports and so on, and develop accordingly. We then test on the actual platform to ensure the code runs as expected. You can simply fold SQL Azure into that same development process. When you’re ready to deploy, if you’re using SQL Server Management Studio 2008 R2 or higher, you can script out the database when you’re done as a SQL Azure script (with change notifications where needed) by selecting the right “Engine Type” on the scripting panel: (Thanks to David Robinson for pointing this out and my co-worker Rick Shahid for the screen-shot - saved me firing up a VM this morning!) Will all this change? Will SSMS, “Data Dude” and other tools change to include SQL Azure? Well, I don’t have a specific roadmap for those tools, but we’re making big investments on Windows Azure and SQL Azure, so I can say that as time goes on, it will get easier. For now, make sure you know what features are and are not included in SQL Azure, and what T-SQL is supported. Here are a couple of references to help: General Guidelines and Limitations: http://msdn.microsoft.com/en-us/library/ee336245.aspx Transact-SQL Supported by SQL Azure: http://msdn.microsoft.com/en-us/library/ee336250.aspx SQL Azure Learning Plan: http://blogs.msdn.com/b/buckwoody/archive/2010/12/13/windows-azure-learning-plan-sql-azure.aspx

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• Automatically Snapshoting AWS instances (or other back up strategy)

  - by user1172468

  I just realized that my aws instance count has risen into the double digits. I'm currently backing portions of my folders and dbs and moving them off to a backup instance. What I think I should be doing is taking a snapshot of the instances (automatically) and persisting them on S3 so I have a running 7 day collection of daily backups. There is a question asking the same thing here, however the answers don't go into depth. So the closest answer seems to be: use a cron job to snapshot the instance. So do I run the cron job on the instance itself? or do I have a micro instance to run these snapshots? Could I get an example script or the command for say a linux flavor? what software must I have installed to get this to run? Thanks.

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• VISIT ORACLE LINUX PAVILION @ORACLE OPENWORLD

  - by Zeynep Koch

  Back by popular demand, Oracle will again host the Oracle Linux Pavilionat Oracle OpenWorld from October 1-3. The pavilion will be located in the Exhibition Hall at Moscone South, Booth 1033, next to the Oracle DEMOgrounds and Oracle Linux demopods. At the pavilion a select group of ISVs, IHVs, and SIs will showcase their products that have been Oracle Linux- and/or Oracle VM-certified. These certified products enable customer applications to run faster, thereby saving money.Partners exhibiting their solutions in the Oracle Linux Pavilion include: BeyondTrust: context-aware security intelligence for dynamic IT infrastructures such as cloud, mobile, and virtual technologies Centrify: control, secure, and audit access to cross-platform systems, mobile devices, and applications Data Intensity: cloud services and application management Fujitsu: technology platforms, private cloud, services, ubiquitous and device solutions HP: converged cloud, converged infrastructure, application transformation, and information optimization LSI: intelligent solid-state storage solutions for breakthrough database acceleration Mellanox: InfiniBand and Ethernet end-to-end server and storage interconnect solutions and services for data centers Micro Focus: mainframe solutions, application modernization and development tools, software quality tools NetApp: storage and data management QLogic: high performance networking Teleran: BI and data warehouse management solutions for Oracle Exadata Database Machine and Oracle Database Be sure to pick up your free Oracle Linux and Oracle VM DVD Kit if you visit one of these partners. And speaking of free, be sure to stop by for some cool treats, courtesy of sponsor QLogic: Smoothie Bar on Monday, October 1 from 2:30 p.m. - 5:30p.m. Ice Cream Social on Wednesday, October 3 from 1:00 p.m. - 2:00 p.m. We look forward to seeing you at the pavilion.

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• IE "About:Tab" page hijacked

  - by tcv

  Hey folks, Client o' mine, running Windows 7 64-bit, installed Kiwee Toolbar and then uninstalled it. The software is pretty much gone except for one last thing: The About:Tab IE page redirects to a Kiwee search page. I have temporarily disabled the "New Tab" page via Internet Explorer's options, but it annoys me. I have scanned with multiple tools. Spyware Doctor purports to removed it, but they want money to remove it. I would buy it -if- I could be certain it would fix the problem. I've also searched the registry and the filesystem for instances of the program, plus I've removed Kiwee manually via the many manual uninstalls out there. IE's AboutURLs registry entry still points to res://ieframe.dll/tabswelcome.htm and if I enter that URL into IE, the correct New Tab page comes up. Any help appreciated.

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• Seattle GiveCamp this Weekend

  - by Stephen.Walther

  Seattle GiveCamp is this weekend (October 19, 2012) on the Microsoft Campus. Donate your time and your programming skills to build software applications (mainly websites) for charities. We need you! Go to the following address and sign up to participate right now: http://seattlegivecamp.com/ We have more than 20 charities participating in this year’s GiveCamp and over 100 volunteers. We need people with all sorts of skills including WordPress, design, ASP.NET, SEO, Mobile, and Project Management skills. If you know how to tweak a WordPress theme or you know how to use Adobe Photoshop or you know Salesforce or Microsoft Access then we really, really need you this weekend. This is a great event to network with other developers, show off your ninja programming skills, and help some great charities. Be prepared to show up at Friday night and start working in a team to write some great code. You can stay until Sunday night for the full event or you can leave early (in previous events, some developers did marathon coding sessions for multiple days straight – but those guys are insane). My wife, Ruth Walther, is the director of this year’s GiveCamp. She’ll be there and I’ll be there. I hope to see you at GiveCamp!

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• Log centralization, display, transport and aggregation at scale v2

  - by Eric DANNIELOU

  This is a duplicate question of Log transport and aggregation at scale and http://stackoverflow.com/questions/1737693/whats-the-best-practice-for-centralised-logging, but the answers might differ now : The softwares described in 2009 may have changed since (for example Octopussy evolved from version 0.9 to 1.0.5). Rsyslog has become the default on most linux distro. Requirements have changed (security, software configuration management, ...). I'd like to ask the following questions : How do you centralize, display and archive system logs? How would you like to do it now if you had to? Most linux distro use rsyslog nowadays, which can provide reliable log transport. But some older unices, network devices and maybe windows box still use old udp rfc-style transport. How did you manage to get reliable transport? Storing logs for a few months can represent a huge amount of disk space. How do you store them? rdbms? Compressed and encrypted text files?

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• Is it possible to have a computer run two OS's in memory at the same time?

  - by Hebon

  I'm sick of needing to reboot my computer every time I wish to use another OS, or run a virtual machine that skimps on power. With the onset of large amounts of memory for computers nowadays I began to think that there must be some way to run two OS's in memory with a way to switch between the two. In my mind, it doesn't seem too difficult; a compatibility layer boots up after bios, which in turn boots to OS1. While in OS1, software is run that triggers a save to ram boots back to the compatability layer, and then boots to OS2. This way, the OS's can be used side by side and boot times are cut drastically short since both OSs are already in ram. Both OS's have their own designated and protected memory so there is no problem there... I mean, it seems fine, but no one has done it, so there must be some reason as to why. I would love some insight into this please.

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• Driver to split audio to 2 different devices?

  - by ThantiK

  I recently bought one of these USB headsets against my own better judgement, and it's really costing my sanity at this point. Previously when using a standard jack, I just used a splitter so I could split off the things I was doing with my TV or headset, I could just turn the TV off or the headset volume down should I want to use one at a time. Now, along comes this USB headset and I find that I can't choose for the sound of 1 application to pipe to 2 different devices on Windows; How can I solve this? Does any software out there exist for this purpose?

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• What is Openflow?

  - by jmreicha

  Okay, I've been thinking about this a lot recently but I think I may be more confused now than I was originally when I started. I can't find anything about Openflow that helps me understand what it is. None of the websites I have found have given a solid definition of what Openflow really is and what it does, at least if they do I can't comprehend it. Is there an easy way to explain this standard so my small brain can understand it? I understand that Openflow is a way to abstract networking away from switches and can be managed from software, etc etc. I feel like it might be a little easier to grasp if I had exmaples of application. But so far searching has failed me. What is Openflow? How can it help me? What does it offer?

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• How does a PDF prevent itself from being printed?

  - by Steven

  I have a PDF for my camera's manual, and Adobe Reader won't let me print it (the print option is grayed out). SumatraPDF also does the same thing (it even says print denied). How does the PDF prevent itself from being printed? It seems that if the program can display it on the screen, then it can also print it. Maybe Adobe Reader respects the PDF not printing, but surely an open source PDF reader wouldn't be so restrictive. So is there something more to this than merely the PDF reader software respecting the PDF's request to not be able to be printed?

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• WAMP Server vs LAMP Server

  - by Rob A

  Hi All, Just wondering, I want to set up a basic web server at home. I run Windows (XP on the machine to be a server), however I also have Ubuntu on hand if I need to run that. Basically I was wondering if there are any large difference between WAMP servers and LAMP servers? I know the run virtually the same software, but does one perform better than the other? Are there hidden benefits of running it in Ubuntu instead of XP, or the other way around? I know its a basic question, but I havent done anything with Ubuntu, and Ive done about the same amount with web server-ing. Thanks!

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• Coding in large chunks ... Code verification skills

  - by Andrew

  As a follow up to my prev question: What is the best aproach for coding in a slow compilation environment To recap: I am stuck with a large software system with which a TDD ideology of "test often" does not work. And to make it even worse the features like pre-compiled headers/multi-threaded compilation/incremental linking, etc is not available to me - hence I think that the best way out would be to add the extensive logging into the system and to start "coding in large chunks", which I understand as code for a two-three hours first (as opposed to 15-20 mins in TDD) - thoroughly eyeball the code for a 15 minutes and only after all that do the compilation and run the tests. As I have been doing TDD for a quite a while, my code eyeballing / code verification skills got rusty (you don't really need this that much if you can quickly verify what you've done in 5 seconds by running a test or two) - so I am after a recommendations on how to learn these source code verification/error spotting skills again. I know I was able to do that easily some 5-10 years ago when I din't have much support from the compiler/unit testing tools I had until recently, thus there should be a way to get back to the basics.

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• what firefall linux distro applicance could track internet usage per device in my home?

  - by GregH

  Hello, Anyone know of a community edition/open source/free firewall/gateway software product that I could install onto an old PC to act as my firewall/gateway/proxy etc, BUT for which it has the power to track internet usage per device in my home. So: a) Mandatory - Track internet usage for devices on my home network on a per device basis (e.g. various PCs/Xbox etc) b) Mandatory - Report/graph would would give a breakdown of internet usage, per device (e.g. IP address), per day. c) Desirable - as in b) above but per hour d) Desirable - realtime graph (e.g. 5 minute measurement intervals or something) that shows current internet usage per device e) Mandatory - Handles all internal<=internet requests for all protocols (e.g. HTTP, HTTPS, xbox etc) f) Mandatory - No explicit settings in clients required - i.e. Transparent Monitoring concept (for both HTTP and non-HTTP traffic like xbox, skype etc) g) Mandatory - easy "appliance" like installation onto a dedicated low spec PC thanks in advance

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• what firefall linux distro applicance could track internet usage per device in my home?

  - by GregH

  Hello, Anyone know of a community edition/open source/free firewall/gateway software product that I could install onto an old PC to act as my firewall/gateway/proxy etc, BUT for which it has the power to track internet usage per device in my home. So: a) Mandatory - Track internet usage for devices on my home network on a per device basis (e.g. various PCs/Xbox etc) b) Mandatory - Report/graph would would give a breakdown of internet usage, per device (e.g. IP address), per day. c) Desirable - as in b) above but per hour d) Desirable - realtime graph (e.g. 5 minute measurement intervals or something) that shows current internet usage per device e) Mandatory - Handles all internal<=internet requests for all protocols (e.g. HTTP, HTTPS, xbox etc) f) Mandatory - No explicit settings in clients required - i.e. Transparent Monitoring concept (for both HTTP and non-HTTP traffic like xbox, skype etc) g) Mandatory - easy "appliance" like installation onto a dedicated low spec PC thanks in advance

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• Can /etc/hosts.deny/allow be overridden?

  - by Tar

  I have security measures put in place to keep unwanted users out of my server. I've changed the SSH port, disabled root login, have a software firewall to block portscans, and have entries in hosts.deny and hosts.allow. I have various services denied to all but another server of mine should my IP change, and two other administrators + my own IP address. My question is, can hosts.deny/allow configuration be overridden so that they can gain access to my server? Does using chroot jail for running things like an IRC server and Teamspeak server prevent people from gaining access to my server and screwing with it?

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• pfSense + DDoS Protection

  - by Jeremy

  I run a gaming community on a colo with a 100Mbps port. I want to buy a very cheap 35 dollar server with the same 100Mbps port, and run pfSense to use as a hardware firewall. I'm dealing with a bunch of 14 year old kids that have access to botnets, so it can become a bit necessary to get something like this. My overall question, is using pfSense on a cheap identical datacenter/port speed server worth it to actually block DDoS attacks? A bit more into detail since I assume you will ask this, the attacks we receive are normally around 1Gbps. We currently run CentOS using CSF Firewall, and even when using a software firewall, we block 500Mbps UDP floods, or just generic attacks pretty easily. Thanks, - Necro

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