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• Ask the Readers: Do You Use the Command Line?

  - by Jason Fitzpatrick

  Despite over two decades of GUI interfaces many power users still turn to the command prompt. This week we want to hear about when and how you use the command prompt on your computer. Long ago in a time before you could manipulate your computer with a mouse and a series of buttons and windows, the command line ruled all. Even after years of GUI development and refinement many people still turn to the command line to get things done. This week we want to hear all about your command line tips and tricks. Do you use the default command line for your OS? Have you enhanced it? Replaced it? What keeps you coming back to the command line when everyone happily works away in the OS’s GUI? Sound off in the comments and don’t forget to check back in on Friday to see the What You Said roundup. What is a Histogram, and How Can I Use it to Improve My Photos?How To Easily Access Your Home Network From Anywhere With DDNSHow To Recover After Your Email Password Is Compromised

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• background copy large files to a laptop?

  - by Roy Pardee

  Hey All, I like to watch windows media center recorded TV files on my laptop in bed. I find thought that when the programs are in HD I have a lot of stuttering and delays--no doubt b/c of the amount of data being transferred. I actually have a fair amount of space on the laptop's hdd, and wouldn't mind moving the files onto that hard drive, where no doubt my problem would go away. But that requires some planning & time for the files to move. Is there a utility out there that would kind of 'trickle' the files over to the laptop over a long period of time, w/out soaking its bandwidth? Something like ms' BITS tech? Both machines are running win7. Many thanks! -Roy

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• bad printer isolation on print server or better way?

  - by Joseph

  I have noticed that when a printer or driver screws up on a Windows server it usually locks up or kills the print spooler and everyone can't print until it is fixed. Usually we have to put the troublesome printer on another server so when it fails, it doesn't take the whole group with it. That is assuming we ever figure out which printer is the problem. Is there a way to have it so that one bad apple doesn't ruin the bunch? Even if it is another form of printer serving, that would work as long as it's not hard for the user to find a printer and install drivers.

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• Setting different default applications for different Desktop Environment

  - by Anwar

  I am using Ubuntu 12.04 with default Unity interface. I installed later the KDE desktop, XFCE, LXDE, gnome-shell and Cinnamon. The KDE comes with different default applications than Unity, such as kwrite for text editing, konsole as virtual terminal, kfontview for font viewing and installing, dolphin as File browser etc. Other DE come with some other default applications. The problem arises when you want to open a file such as a text file, with which can both be opened by gedit and kwrite, I want to use kwrite on KDE and gedit on Unity or Gnome. But, there is no way to set like this. I can set default application for text file by changing respective settings in both KDE and Unity, but It become default for both DE. For example, If I set kfontviewer as default font viewing application in KDE, it also opens fonts when I am in Unity or Gnome and vice versa. This is a problem because, loading other DE's program takes long time than the default one for the used DE. My question is: Can I use different default applications for different DE? How?

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• Good free OCR with GUI for correcting mistakes? (for Windows)

  - by Hugh Allen

  I've used SimpleOCR, which has a nice GUI for correcting mistakes. Unfortunately it makes a lot of mistakes! (and suffers other bugs and limitations) On the other hand Tesseract is more accurate but has no GUI at all. Is there a free OCR program for Windows which has a nice GUI and a low error rate? I want it to highlight suspect words (by OCR uncertainty, not just spell checking) and show the original (bitmap) word while I'm editing the OCRed word similar to what SimpleOCR does. Open-source would be best, followed by freeware, then trial / demo / crippleware a long way behind.

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• Job title inflation and fluffing

  - by Amir Rezaei

  When you work on the same project for a relative long time you get more experienced. You may also master many new technologies. Besides the coding you may also do what would classify other roles. There is however one part of your career that may not get updated. That is your job title. It seems beside all technological hypes there is also job title hype. It all depends on which company you work for. Many companies give employer better job titles because they want to keep them. The employee doesn’t change their job because the current title is much better, even if they would get better working condition and benefits if they changed their job. When you consider changing you job you notice that your job title is kind of “outdated”. People with less skill have a much better title for their job than you. You may very well explain what you did on your project but the fact is that many employers go by the title. So here are the questions: Do you change your current title in your CV? What are other options? Here are some good readings regarding these phenomena: Job title inflation Job title fluffing

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• IIM Calcutta &ndash; EPBM 14 &ndash; Campus Visit &ndash; Day 1 &ndash; Registration &amp; Beginning

  - by Ram Shankar Yadav

  Hey Guys! I’m back with the updates, it was an awesome Monday morning, for me it started when Sun came on my face, and the time was 5:30AM~~ I was amazed that this part of the country gets the sunrise quite early, but I ignored the sunlight for a while by covering my face, but…finally the door knocked….~ It was Mukesh, and the time was 6 AM, so I thought let’s get rid of laziness and start my day~ After having my brush and bath, I shaved and we headed for the Breakfast~ We quickly had our bread butter jam combo, and left for the Auditorium for Registration~ We searched for our names and signed the Registration paper and got a cool IIM C bag, with following in it: - a IIMC Notepad - Cello X Caliber pen - a book “What the Best MBAs Know”, and - Reading Material for Campus Sessions Today we had lectures on “Evolution of Indian Corporate Sector” (2 Session of 1.5 hrs each) and “Indian Economy: Crisis & Response” (2 Sessions of 1.5 hrs). “Evolution of Indian Corporate Sector” was by Prof. Raghabendra Chattopadhyay, was one of my best lectures I’ve ever attended in my life, he started with a question that saying that “The Indian Capitalists didn’t wanted the economy to open up till the economic reforms occurred?”, he is one of the best story tellers I’ve ever met, he started with the ancient European and Indian history and linked the trade & economics with it, simply amazing~ I can’t believe I didn’t get bore even after a 2hour long session…awesome~~ Afterward we had our lunch break, we did our lunch in “New Hostel” building and got back for “Indian Economy” sessions. Indian Economy session was taken by Sudip Chaudhuri, for us he’s a well known face as we have already attended his sessions on Macroeconomics~ It was an interactive, easy going, and a laughable session, and we did discussed some serious issues as well. After the class got over we went out and got few T-Shirts and Mugs for ourselves, and yep not to forget it “Rained” in Kolkata today~~ We got back and had our dinner and dispersed finally… I loved this amazing Monday, and hope the spirit continues till Saturday~ I’m feeling the enrichment in my thought and perceptions~ I’m lovin’ it~~ ram :)

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• Can someone explain the "use-cases" for the default munin graphs?

  - by exhuma

  When installing munin, it activates a default set of plugins (at least on ubuntu). Alternatively, you can simply run munin-node-configure to figure out which plugins are supported on your system. Most of these plugins plot straight-forward data. My question is not to explain the nature of the data (well... maybe for some) but what is it that you look for in these graphs? It is easy to install munin and see fancy graphs. But having the graphs and not being able to "read" them renders them totally useless. I am going to list standard plugins which are enabled by default on my system. So it's going to be a long list. For completeness, I am also going to list plugins which I think to understand and give a short explanation as to what I think it's used for. Pleas correct if I am wrong with any of them. So let me split this questions in three parts: Plugins where I don't even understand the data Plugins where I understand the data but don't know what I should look out for Plugins which I think to understand Plugins where I don't even understand the data These may contain questions that are not necessarily aimed at munin alone. Not understanding the data usually mean a gap in fundamental knowledge on operating systems/hardware.... ;) Feel free to respond with a "giyf" answer. These are plugins where I can only guess what's going on... I hardly want to look at these "guessing"... Disk IOs per device (IOs/second)What's an IO. I know it stands for input/output. But that's as far as it goes. Disk latency per device (Average IO wait)Not a clue what an "IO wait" is... IO Service TimeThis one is a huge mess, and it's near impossible to see something in the graph at all. Plugins where I understand the data but don't know what I should look out for IOStat (blocks/second read/written)I assume, the thing to look out for in here are spikes? Which would mean that the device is in heavy use? Available entropy (bytes)I assume that this is important for random number generation? Why would I graph this? So far the value has always been near constant. VMStat (running/I/O sleep processes)What's the difference between this one and the "processes" graph? Both show running/sleeping processes, whereas the "Processes" graph seems to have more details. Disk throughput per device (bytes/second read/written) What's thedifference between this one and the "IOStat" graph? inode table usageWhat should I look for in this graph? Plugins which I think to understand I'll be guessing some things here... correct me if I am wrong. Disk usage in percent (percent)How much disk space is used/remaining. As this is approaching 100%, you should consider cleaning up or extend the partition. This is extremely important for the root partition. Firewall Throughput (packets/second)The number of packets passing through the firewall. If this is spiking for a longer period of time, it could be a sign of a DOS attack (or we are simply recieving a large file). It can also give you an idea about your firewall performance. If it's levelling out and you need more "power" you should consider load balancing. If it's levelling out and see a correlation with your CPU load, it could also mean that your hardware is not fast enough. Correlations with disk usage could point to excessive LOG targets in you FW config. eth0 errors (packets in/out)Network errors. If this value is increasing, it could be a sign of faulty hardware. eth0 traffic (bits/second in/out)Raw network traffic. This should correlate with Firewall throughput. number of threadsAn ever-increasing value might point to a process not properly closing threads. Investigate! processesBreakdown of active processes (including sleeping). A quick spike in here might point to a fork-bomb. A slowly, but ever-increasing value might point to an application spawning sub-processes but not properly closing them. Investigate using ps faux. process priorityThis shows the distribution of process priorities. Having only high-priority processes is not of much use. Consider de-prioritizing some. cpu usageFairly straight-forward. If this is spiking, you may have an attack going on, or a process is hogging the CPU. Idf it's slowly increasing and approaching max in normal operations, you should consider upgrading your hardware (or load-balancing). file table usageNumber of actively open files. If this is reaching max, you may have a process opening, but not properly releasing files. load averageShows an summarized value for the system load. Should correlate with CPU usage. Increasing values can come from a number of sources. Look for correlations with other graphs. memory usageA graphical representation of you memory. As long as you have a lot of unused+cache+buffers you are fine. swap in/outShows the activity on your swap partition. This should always be 0. If you see activity on this, you should add more memory to your machine!

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• Azure Florida Association

  - by Dave Noderer

  Herve Roggero, SQL Azure MVP,  has created a virtual community to focus on Azure. Here is the outline from Herve:   User Group Name:  Azure Florida Association Purpose: Start a virtual Florida user group that targets the Azure platform Venues: Most meetings will be virtual; however I plan to host a few physical events across Florida if possible from time to time; physical events may be a few hours long with potentially more than one speaker Possible Topics: The topics will touch Azure generally speaking, but can have a wide array of concern such as Integration, Data Migration, Hosting, Security, Scalability, Mobile Device integration, successful ventures/lessons learned, cross cloud integration patterns, testing in the cloud, deployment management, reporting… Target Members: Architects, Developers, IT Managers Membership: Membership will be free; virtual events will be free; physical events may involve a minimal cover charge Speakers: If you are interested in speaking or if you have topic ideas, please let me know Frequency: Initially these meetings will be held every other month   The first meeting will be held on January 25, 2012 at 4PM EST. Vikas Sahni, SQL Azure MVP, will be presenting on Demystifying SQL Azure. Vikas will introduce SQL Azure, value proposition, usage scenarios, concepts and architecture, what is there and what is not, including Tips and Tricks.  The actual meeting link will be available in January but please join the linked in group now to be kept informed of this and future events: http://www.linkedin.com/groups?gid=4177626.

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• DVD Drive can read a DVD title and file contents (very slowly) but not play DVDs

  - by Daisetsu

  I've been able to watch DVDs in the past on this computer when it was running XP. I recently upgraded to windows 7 and haven't watched a DVD since then. I put a DVD in and it took quite a long time but windows finally found the disk title, and I was able to explore directories (saw folder like VIDEO_TS). The problem is when I try to have video players play the DVD I just get an error in VLC. It wouldn't tell me the exact error (said to check the log and I don't know where that is). Do I have to install some special drivers/certs in windows 7 to play video?

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• Reducing latency for different geographic regions on Amazon Cloud

  - by Shoaibi

  I have got an application which has three components Application code : Amazon EC2 US-EAST-1 instance Application images, and other static data : Amazon S3 with CloudFront Application Database : Amazon RDS In short i need something like Cloud Front for EC2. In long, people using this application from a different region say middle east will have faster static content downloading due to Cloud Front but there would be a lot of latency in communicating to EC2 instance. I want to use a budget friendly way of enhancing this. Launching Amazon Instances in every region that offer is sure a choice, but isn't really cheap, so would try to avoid it unless its last resort. Also say if my clients also need to communicate to the RDS database directly, is there some kind of solution which gives that kind of functionality mentioned above, but for RDS?

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• Almost 2013 - Any decent options for mp3 to text? (Speech Recognition)

  - by ajacian81

  I know there's some questions here on s/u regarding converting spoken word mp3 to text, however, most are pretty old (2010 and earlier). I'm just wondering if there's any new legitimate options for this task - if google has shown us anything, speech recognition has come a long way. Personally, I'd prefer a linux based solution, but I'm not picky. I've heard a lot about something called Sphinx, but I tried to set it up and get it going but I couldn't. I know there's a number of different componenents for Sphinx so maybe I was doing it wrong? Either way, are there any new applications for Speech recognition, especially from MP3 files? Thanks!

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• Updated Batch Best Practices

  - by ACShorten

  The Batch Best Practices whitepaper has been updated and published to My Oracle Support with the latest advice and new facilities. Two of the more interesting updates are: Addition of a Bache Cache Flush - Just like the online, the batch component of the framework caches data. It is now possible to refresh the cache manually using a new batch jobs F1-FLUSH. This is particularly useful if you execute long running threadpool workers across many different batch processes (submitters). New EXTENDED execution mode - A new specialist mode has been introduced for sites that use a large number of submitters (concurrent threads) and are experiencing intermittent communication issues in the threadpoolworker. This mode uses Oracle Coherences Extend mode to allow submitters to be allocated to threadpoolworkers via proxy connections. It differs from CLUSTERED mode in that a submitter can be explicitly allocated to a specific threadpoolworker via a proxy connection. This mode is only used for specific situation and customers should continue to use CLUSTERED mode gemerally. The whitepaper outlines advice for these new facilities and provides advice for existing functionality. The whitepaper is available from My Oracle Support at Doc Id: 836362.1.

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• Why does my browser take me to Scour.com? (redirect virus)

  - by Paula DiTallo

  The "scour" or Rootkit.Win32.TDSS virus has a long history which can be found here: http://en.wikipedia.org/wiki/Scour Here is the primary symptom: after searching for something in your web browser using google, one of the results that you click on redirects you to scour.com. If you've executed ClamWin, Malwarebytes, McAfee, Norton, etc. to find and isolate the virus without any luck--this isn't really a surprise, since this virus attaches to existing system drivers. I only know of one reliable package that will remove this without ill effects--like adding new spyware. This package is called TDSSKiller. I have seen multiple websites that claim to have this software available, but the one that I know is reliable is located here: http://support.kaspersky.com/viruses/solutions?qid=208280684 Once you go to Kaspersky's tech support site, the TDSSKiller zip file is available for downloading. When you execute this software, you will be able to "cure" or repair the infected driver. Remember to jot down the name of the driver for future reference--should you need to reinstall the driver from a "same-as" working computer, or your install disk if the repair is ineffective. The driver that happened to get infected on my computer was the tcpip.sys driver. This caused my win sockets to loose their ip addresses. In most other instances, less critical drivers such as HDAudBus.sys are infected. In my case, I was not through correcting my computer problems until I corrected the broken WinSock issue and loaded an earlier version of the tcpip.sys driver from: C:\WINDOWS\ServicePackFiles\i386 which I placed in: C:\WINDOWS\system32\drivers Don't forget to reboot your computer after your repair! Once you download TDSSKiller and cure/repair your infected driver(s), the redirect on google searches should disappear .

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• Pricing: Meet or Beat?

  - by charles.knapp

  My home dishwasher started making some really interesting noises. I heard radio advertisements from two retailers who promised to meet any competitor's price. Then, I heard another retailer promising that their everyday prices beat their competitors. That got me to thinking about the power of pricing and promotions in the marketing mix (product, price, placement, promotions, and people). What is more powerful to say in a competitive market: your company will meet a similar offer, or your company will beat the others? Will you sell more if you meet or if you beat? I found that the retailer who promised to beat the others really had the best everyday pricing. Even better for me, another retailer had an exclusive promotional sale for long-term customers. Their loyalty promotion beat the best everyday discounter. So, I got the quality and performance I wanted at a tremendous price. So, I have two challenges for marketers. First, where you really have to compete on price as a dominant factor, give people strong reasons to do business with you. If you try to meet other's prices, make the leap to actually beat and not merely meet. Second, upgrade your firm's capabilities where needed. Oracle offers a complete range of great CRM software for loyalty management, marketing promotions, and pricing management that will help you to grow your business.

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• Is there a design pattern for chained observers?

  - by sharakan

  Several times, I've found myself in a situation where I want to add functionality to an existing Observer-Observable relationship. For example, let's say I have an Observable class called PriceFeed, instances of which are created by a variety of PriceSources. Observers on this are notified whenever the underlying PriceSource updates the PriceFeed with a new price. Now I want to add a feature that allows a (temporary) override to be set on the PriceFeed. The PriceSource should still update prices on the PriceFeed, but for as long as the override is set, whenever a consumer asks PriceFeed for it's current value, it should get the override. The way I did this was to introduce a new OverrideablePriceFeed that is itself both an Observer and an Observable, and that decorates the actual PriceFeed. It's implementation of .getPrice() is straight from Chain of Responsibility, but how about the handling of Observable events? When an override is set or cleared, it should issue it's own event to Observers, as well as forwarding events from the underlying PriceFeed. I think of this as some kind of a chained observer, and was curious if there's a more definitive description of a similar pattern.

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• How to open ports on router for better torrent performance

  - by Mehper C. Palavuzlar

  I've been using utorrent to download and upload torrents for a long time. Recently someone told me that I need to open port(s) for utorrent from my router settings for better downloading and uploading performance. Is it true? If yes, how can I do that? My utorrent version: 2.0 and the port used for incoming connections: 61829. My router: Yaksu S200 ADSL router modem and I can reach its settings via web interface. I looked at the settings but they seem a bit complicated to me. Other info you may need to know: I have dynamic IP. I'm using Win7 x64.

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• Blocking the Apple OS X App Store

  - by Jon Rhoades

  Being the evil corporate IT overlords we need to block the new OS X App Store. As you may be aware the 10.6.6 update installs the App Store App which allows users to download and install apps without admin privileges. Some Suggestions: Don't update to 10.6.6+ Use parental controls Presumably some OD policy (if you have an OD server which we don't) Block the App store by DNS or Proxy Not updating to 10.6.6+ isn't really a long term solution as it contains security fixes and new Macs will come with it anyway. Blocking the App store at a network level doesn't solve laptop users. Ideally a simple system preference or editing of a plist that can be pushed out by ARD would be the best solution. Please note the question isn't should we block the App store, it's how we can block the App store.

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• Amazon EBS root volume persistence

  - by hipplar

  When I launch a new Windows EC2 instance I am given a 30 gig root EBS volume. I'm trying to make sure I understand the EBS terminology and want to make sure I understand this correctly: Q: What happens to my data when a system terminates? The data stored on a local instance store will persist only as long as that instance is alive. However, data that is stored on an Amazon EBS volume will persist independently of the life of the instance. What exactly does "instance is alive" mean? If I write files to the root volume and reboot the instance will the files remain? Or do I physically have to terminate (delete) the instance for the root volume to go away? Thanks

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• Pricing: Meet or Beat?

  - by charles.knapp

  My home dishwasher started making some really interesting noises. It was time to shop. I heard radio advertisements from two retailers who promised to meet any competitor's price. Then, another retailer promised that their everyday prices beat their competitors. That got me to thinking about the power of pricing and promotions in the marketing mix (product, price, placement, promotions, and people). What is more powerful to say in a competitive market: your company will meet a similar offer, or your company will beat the others? Will you sell more if you meet or if you beat? I found that the retailer who promised to beat the others really had the best everyday pricing. I was close to making a purchase. Then, another retailer had an exclusive promotional sale for long-term customers. Their loyalty promotion beat the best everyday discounter. So, I got the quality and performance I wanted at a tremendous price. So, I have two challenges for marketers. First, where you really have to compete on price as a dominant factor, give people strong reasons to do business with you. If you try to meet other's prices, make the leap to actually beat and not merely meet competitor prices. Second, upgrade your firm's capabilities where needed. Oracle offers a complete range of great CRM capabilities for loyalty management, marketing promotions, and pricing management that will help you to grow your business.

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• Trace Mobile Service Serving 20,000 + Request Per Month

  - by Gopinath

  We introduced Trace Mobile Service in April 2010 and we are glad to announce that now the service is processing 20000 + per month. After a long time today I looked at the statistics and overwhelmed to see the number of trace requests processing by the service as 24282, 23781 and 18475 in the months of January 11, December 10 and November 10 respectively. Also I’m glad to announce that this service is contributes close to 10% of our revenues. Here is a table that provide stats for the past 7 months For those who don’t know about this service It is a tiny, yet very useful service for tracing information of Indian mobile phones. Usage of this service is very simple: enter any Indian mobile phone number and it will instantaneously let you know the location and the service provider of the mobile phone. Visit Trace Mobile Service or read Introducing “Trace Mobile Information” Service for more details This article titled,Trace Mobile Service Serving 20,000 + Request Per Month, was originally published at Tech Dreams. Grab our rss feed or fan us on Facebook to get updates from us.

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• Multiple apps in one "icon" on the iPod touch [closed]

  - by Jerry

  I have researched but can't find any discussion about moving several apps into one "icon" on the iPod touch screen. I have moved 5 apps (all the same category) into one what is normally one app icon. The title on the icon reads "games" - all are games. I have all the apps jiggling and drag one game app on top of another game app - They move to be side by side and the title automatically reads "games" - is this "OK" to do - you can have nine apps in each of the 16 spaces available on each screen. Will this hurt the touch? As long as you have space (GBs) is this ok? Has anyone done or heard of this? Any help is appriecated.

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• Is unit testing development or testing?

  - by Rubio

  I had a discussion with a testing manager about the role of unit and integration testing. She requested that developers report what they have unit and integration tested and how. My perspective is that unit and integration testing are part of the development process, not the testing process. Beyond semantics what I mean is that unit and integration tests should not be included in the testing reports and systems testers should not be concerned about them. My reasoning is based on two things. Unit and integration tests are planned and performed against an interface and a contract, always. Regardless of whether you use formalized contracts you still test what e.g. a method is supposed to do, i.e. a contract. In integration testing you test the interface between two distinct modules. The interface and the contract determine when the test passes. But you always test a limited part of the whole system. Systems testing on the other hand is planned and performed against the system specifications. The spec determines when the test passes. I don't see any value in communicating the breadth and depth of unit and integration tests to the (systems) tester. Suppose I write a report that lists what kind of unit tests are performed on a particular business layer class. What is he/she supposed to take away from that? Judging what should and shouldn't be tested from that is a false conclusion because the system may still not function the way the specs require even though all unit and integration tests pass. This might seem like useless academic discussion but if you work in a strictly formal environment as I do, it's actually important in determining how we do things. Anyway, am I totally wrong? (Sorry for the long post.)

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• Strategy for managing lots of pictures for a website

  - by Nate

  I'm starting a new website that will (hopefully) have a lot of user generated pictures. I'm trying to figure out the best way to store and serve these pictures. The CMS I'm using (umbraco) has a media library that puts a folder on the server for each image. Inside of there you can have different sizes of that same image. That folder has an ID on it and the database has additional information for that image along with the ID of the folder. This works great for small sites, but what if the pictures get up to 10,000, 100,000 or 1,000,000? It seems like the lookup on the directory would take a long time to find the correct folder. I'm on windows 2008 if that makes a difference. I'm not so worried about load. I can load balance my server pretty easily and replicate the images across the servers. The nature of the site won't have a lot of users on it either, but it could have a lot of pics. Thanks. -Nate EDIT After some thought I think I'm going to create a directory for each user under a root image folder then have user's pictures under that. I would be pretty stoked if I had even 5,000 users, so that shouldn't be too bad of a linear lookup. If it does get slow I will break it down into folders like /media/a/adam/image123.png. If it ever gets really big I will expand the above method to build a bigger tree. That would take a LOT of content though.

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• In a Tower defense game, how to do buffs/debuffs

  - by Gabe

  The question is at the very bottom. If you understand Buffs/Debuffs in tower defense games then you should skip the bulk of this question and go to the bottom (seperated with the long line) I plan on making an IPhone TD game. The fact that its an iPhone game isn't relevant but I am coding in Objective-c with Cocos2D. I am relatively inexperienced in the field of game design so I'm looking for some advice from someone experienced in this field. In tower defense, there are two things that are relevant to my question: towers/enemies (both have their own classes/children). They each have stats like hp, damage, speed, etc. I want to add buffs/defuffs, for instance: Towers A,B and C each have 15 base damage. Tower D would be a buff tower with no damage, a tower with an AOE(area of effect) aura that gives 10% damage to all towers in range. Tower E might slow enemies in its AOE, a debuff. Stuff like that. The same could go for enemies. Enemy A is a boss that has a slow aura that affects towers and slows their base attack speed or something along those lines. So the question is, what would be the most effective way to implement this? If it was just towers then I would just mess around with the tower classes, but since tower classes and enemy classes are both affected, should I make a buff class? TD games can consume quite a bit of memory with large amounts of creeps and towers, and buffs I feel like would also consume quit a bit... So I'm trying to be as effective as possible.

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