There are some popular keyboards like HyperX, Corsair is a good example of PBT Double Shot Keyboards.ĭue to being molded at high temperature, boost RGB backlit and some essential properties increase PBT Doble Shot Keycaps price that’s why some keyboard users consider it much expensive. This PBT Double Shot Method is widely used while constructing an RBG supported Back lightening keyboard because it helps to enhance its shine with luminous light. PBT Keycaps is considered the most premium keycaps due to the plastic component from which they are built, making these keycaps smooth, magnificent touch, and premium feel which loved by the users.Ĭoming to PBT Double Shot Keycaps, It is made from two high-quality plastic materials molding together at a very high temperature to create this type of PBT keycap. Here is the video I’m embedding for you to get a real feel of Double Shot Keycaps as well as how they perform in real usage.īefore knowing PBT Double Shot Keycaps, we should what a PBT Keycap is?Ī PBT ( Polybutylene Terephthalate) Keycap is the most common, high-quality, and popular plastic keycap material used to manufacture high-quality keycaps for mechanical keyboards. Keyboard professionals always prefer these keycaps just because of their immense and vital properties. Overall, Double Shot Keycaps provides you with excellent consistency, smooth and premium typing experience as well as long durability. Printing is exceptional looks good on the keycaps which enhances its beauty and makes keyboards look attractive and durable. The main significant advantage of Double Shot Keycaps is it passes RGB lights through the legends if keycaps are manufactured with opaque plastic materials that help to generate impressive shine. So you don’t need to be concerned about letter fading as these keycaps don’t fade off even after aggressive usage. When you type with slightly heavy pressure, there are more chances letters to be fade with time with conventional keycaps like ABS but with the Double Shot keycaps, you will get consistency, sharpness, and a very premium feel. It is less likely to be fade over time.īy using these keycaps, the typing will be certainly smooth, giving you a premium touch and feel and a good grip over the keys.A letter is easier to read on the keyboards.The main housing of this keycap is one piece. Manufactured with the molding of two different plastic materials.Here are the following characteristics of Double Shot Keycaps: This entire manufacturing process is very unique which is different from a conventional method. Double Shot Keycaps is created from a very differentiated and advanced process in which two different types of plastic are molded together to form a new type of keycaps which is called Double Shot Keycaps.
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Doesn't help much.Though now I can fight Wallmonger without much trouble comparitively, I've not beaten the Kill Pillars as of this moment. The one attack I would blank is the attack where they try to stomp right on top of you, occasionally releasing bullets in the process. If you make this a habit, the boss will get much easier But that's Kill Pillars' easiest attack. Ursprünglich geschrieben von Rolling them 1s:The thing about the kill pillars, is that at the start of the ring of bullets thing that they do at the start if the fight and also as part of the attack cycle, you can blank in the half a second before they shoot out the lines of bullets, forrcing you only to dodge the ring they shoot out. I felt rather annoyed at that remark since, out of all floor 4 bosses, Kill Pillars is the only one which is the most random for me to get a flawless victory in. Just don't say a boss is 'easy' for the sake of stating it. Speaking of collision damage, I've already got many times in which the Kill Pillars literally hopped inside me, nothing I could do since I couldn't outrun them.īut eventually, once you get one down, often the others fall right behind it and the last one is the easiest part of the fight: As stated above, just dodge towards the boss after it lifts up for another attack. The worst about dodging that rotating pattern is that the collision can get sketchy at times when you dodge roll, sometimes you dodgeroll diagonally inwards to avoid the ring of bullets but the game counts it as you taking collision damage. They just have really annoying patterns and yes, jammed bullets. High Priest can be very annoying since all of his attacks can get to a point where you can't dodge through movement alone, not to mention his hidden wall shots gimmick which makes fighting him off the corners yourself very risky That single wavy horizontal line shot took me a lot of flawless attempts just because it would go back and forth when I wasn't expecting it to (or worse, dodging it perfectly and having the boss shoot you right on the recovery frames) Wallmonger's shots aren't anything special but its patterns can get hectic at times. They all get their own gimmicks you have to deal with. By all means, speaking from my experience, Dragun is easier to get flawless than all three of the fourth floor bosses. Some people have an easier time with different patterns. Objectively speaking, none of the fourth floor bosses are 'easy'. If print quality remains a problem after replacing the ink cartridges, contact your dealer. To replace an ink cartridge before it is empty, see Replacing an Ink Cartridge. If the print quality still has not improved, some of the ink cartridges may be old or damaged and may need to be replaced. Then do the nozzle check again, and repeat the head cleaning if necessary. If print quality hasn't improved after repeating this procedure four or five times, turn the printer off and leave it alone overnight. If the nozzle check page does not print satisfactorily, you may need to repeat the head cleaning and print the nozzle check pattern again. When the power light stops flashing, click Print Nozzle Check Pattern in the Head Cleaning dialog box to confirm that the head is clean and to reset the cleaning cycle. Never turn off the printer while the power light is flashing. The power light and the ink lights flash while the printer performs the cleaning cycle. For instructions, see Accessing the printer software.Ĭlick the Utility tab and click the Head Cleaning button. You need to replace the appropriate ink cartridge first.Īccess the printer software. If the ink out light is flashing, you cannot clean the print head. Make sure that the printer is turned on and the ink out light is off. Refer to the appropriate section below to use the Head Cleaning utility.įollow the steps below to clean the print head using the Head Cleaning utility. You must replace the appropriate ink cartridge first.ĭo not start the Head Cleaning or Nozzle Check utility while printing is in progress otherwise, your printout may be marred. When the ink out light is flashing or on, you cannot clean the print head. Use the Nozzle Check utility first to confirm that the print head needs to be cleaned. To avoid wasting ink, clean the print head only if print quality declines for example, if the printout is blurry or the color is incorrect or missing. You can clean the print head from your computer using the Head Cleaning utility in the printer software, or from the printer itself by using the printer's control panel buttons. If you find that the printed image is unexpectedly faint or dots in the printed image are missing, you may be able to solve these problems by cleaning the print head, which ensures that the nozzles are delivering ink properly. Make sure you select your USB drive, then start the installation process. When that's done, restart your Mac and hold down the Option key while it starts. macOS High Sierra should already be selected, but if not, click on the box, then select the installer you just downloaded.įinally, click 'Create installer' and follow the instructions. Underneath that, you'll see a box that says 'Select the OS X installer'. In the main menu there will be a drop down list box titled 'Select the volume to become the installer'. Download and install the app, then connect your USB drive to your Mac and run the app. You'll now need the free Install Disk Creator (opens in new tab) app. Make sure any files or data on the USB drive are backed up onto another device, as the installation process will format the drive. If you don't have one, check out our list of the best USB drives. Next, you'll need a USB drive over 8GB in size. This will keep the macOS High Sierra installer app installed on you Mac in the Applications folder. Once macOS High Sierra is downloaded, press Command + Q on your keyboard to quit the installation process. If you can't find it, use the search box, or click the link above. High Sierra should appear towards the top of this section. First, download the installer by opening up the App Store and go to the 'Featured' section. To fix this, you will need to install macOS High Sierra (opens in new tab) from a USB drive. Quite a few people have contacted us saying that their macOS High Sierra installation fails with an error message that states "the path /system/installation/packages/osinstall.mpkg appears to be missing". macOS High Sierra won't install, shows "osinstall.mpkg appears to be missing" error message It may be worth restarting your Mac in Safe Mode, then trying to install macOS 10.13 High Sierra from there to fix the problem. If your Mac continues to fail to boot, follow Apple’s instructions on creating an external Mac startup disk (opens in new tab). You can also try Shift + Option + Command + R. If macOS High Sierra encounters a problem at the end of installation, and then shows an error message, restart your Mac and press Command + Option + R on your keyboard while the Mac boots to start up the recovery system over the Internet. Once you have freed up enough space, retry the installation. If you’re struggling to free up disk space, look out for hidden Time Machine files that may be taking up large amounts of space. Select ‘Disk boot’ to boot normally, then remove any files you no longer need. To fix the macOS High Sierra problem where the installation fails due to low disk space, restart your Mac and press CTL + R while it’s booting to enter the Recover menu. You also need to make sure that there is enough hard drive space on your Mac, otherwise the macOS High Sierra install will fail. Double-click the file to begin installation. If the macOS High Sierra download completes, but there’s no prompt for the installation to continue, then search in your Mac’s application folder for a file called 'Install macOS 10.13'. If you’re having problems installing macOS High Sierra, first make sure you check out our how to download and install macOS 10.13 High Sierra guide, which will take you through the steps you need to take to safely install the new operating system. You may be able to restart the download from there.įinally, try logging out of the Store to see if that restarts the download. If you still have a problem downloading macOS High Sierra, open up the App Store, click ‘View My Account’ and see if there is anything in the ‘Unfinished Downloads’ section. Delete them, then reboot your Mac and try to download macOS High Sierra again. If you’re still having problems downloading macOS High Sierra, try to find the partially-downloaded macOS 10.13 files and a file named ‘Install macOS 10.13’ on your hard drive. It may also be worth switching from a Wi-Fi connection to an Ethernet cable, to ensure your internet connection is as reliable as possible. If this is the issue, try again later to see if the download now works. It may be because a lot of people are trying to download macOS High Sierra at the same time. There are a few reasons why you may get this problem. That content can’t be downloaded at this time. Installation requires downloading important content. A common macOS High Sierra problem at the moment is that macOS 10.13 begins to download, but then it pauses along with an error message that says “macOS High Sierra download has failed”.Īnother common macOS High Sierra download problem shows the error message: “Installation of macOS could not continue. Algorithmic rationality: Game theory with costly computation. The bitcoin backbone protocol: Analysis and applications. Juan Garay, Aggelos Kiayias, and Nikos Leonardos.In Financial Cryptography and Data Security. Majority is not enough: Bitcoin mining is vulnerable. Pricing via processing or combatting junk mail. Cryptology ePrint Archive, Report 2016/919. Snow White: Provably Secure Proofs of Stake. Phil Daian, Rafael Pass, and Elaine Shi.On the Instability of Bitcoin Without the Block Reward. Secure Computation Without Authentication. Boaz Barak, Ran Canetti, Yehuda Lindell, Rafael Pass, and Tal Rabin. Personal Communication with Iddo Bentov and Yuncong Hu and Siqiu Yao. Finally, the FruitChain protocol enables decreasing the variance of mining rewards and as such significantly lessens (or even obliterates) the need for mining pools. Consequently, if this blockchain protocol is used as the ledger underlying a cryptocurrency system, where rewards and transaction fees are evenly distributed among the miners of blocks in a length κ segment of the chain, no coalition controlling less than a majority of the computing power can gain more than a factor (1+3δ) by deviating from the protocol (i.e., honest participation is an n/2-coalition-safe 3δ- Nash equilibrium). We present a new blockchain protocol-the FruitChain protocol-which satisfies the same consistency and liveness properties as Nakamoto's protocol (assuming an honest majority of the computing power), and additionally is δ-approximately fair: with overwhelming probability, any honest set of players controlling a φ fraction of computational power is guaranteed to get at least a fraction (1-δ)φ of the blocks (and thus rewards) in any Ω(κ/δ) length segment of the chain (where κ is the security parameter). In contrast, in a fair protocol, one would expect that players controlling a φ fraction of the computational resources to reap a φ fraction of the rewards. An elegant work by Eyal and Sirer (FinancialCrypt'14), strengthening and formalizing an earlier attack discussed on the Bitcoin forum, demonstrates that a coalition controlling even a minority fraction of the computational power in the network can gain (close to) 2 times its "fair share" of the rewards (and transaction fees) by deviating from the protocol instructions. In Nakamoto's Bitcoin application of the blockchain protocol, players are incentivized to solve these puzzles by receiving rewards for every "block" (of transactions) they contribute to the blockchain. Assuming honest participation, however, is a strong assumption, especially in a setting where honest players are expected to perform a lot of work (to solve the computational puzzles). Recent work by Garay et al (EuroCrypt'15) and Pass et al (manuscript, 2016) demonstrate that this protocol provably achieves consistency and liveness assuming a) honest players control a majority of the computational power in the network, b) the puzzle-hardness is appropriately set as a function of the maximum network delay and the total computational power of the network, and c) the computational puzzle is modeled as a random oracle. "moderately hard functions") introduced by Dwork and Naor (Crypto'92). His ingenious protocol prevents "sybil attacks" (where an adversary spawns any number of new players) by relying on computational puzzles (a.k.a. Nakamoto's famous blockchain protocol enables achieving consensus in a so-called permissionless setting-anyone can join (or leave) the protocol execution, and the protocol instructions do not depend on the identities of the players. Whether installing IIS or having it already installed, you’ll have to enable the FTP Server feature. A firewall or routing device that allows connections over the FTP Server.A root folder for FTP content with permissions.Depending on the use-case, a self-signed, domain-certificate, or CA-signed SSL certificate.What do you need to build an FTPS server on IIS? Although you could install OpenSSH in your Windows Server to create an SFTP server, IIS does not support SFTP. Both are completely different file transfer mechanisms. What is not FTPS? FTPS (FTP over SSL) is not SFTP (FTP over SSH). In simple words, FTPS is the classic FTP but with added SSL support. Instead, FTP relies on SSL (thus FTPS) to build an SSL tunnel so that FTP can send all data in clear text through the tunnel. SSL uses certificates for proving identity and ensuring security for communications across internal or external networks (Internet).īy itself, FTP does not provide any form of encryption or authentication. What is FTPS, and what do you need to build a server?įTPS (FTP over SSL) depends on SSL (Secure Sockets Layer) to build a secure channel between client and server. Installing IIS and FTP Server features. In this step-by-step guide to installing a secure FTP Server (FTP over SSL), we’ll go through setting up IIS with FTP over SSL site, getting an SSL certificate, creating a user with permission, and testing (plus troubleshooting) your connections.įor this guide, we’ll use an IIS version 10 deployed on an AWS EC2 Windows Server 2016. Open the Applications folder in the Finder (if it doesn’t appear in the sidebar, go to the Menu Bar, open the “Go” menu, and select Applications in the list), search for BookMacster application by typing its name in the search field, and then drag it to the Trash (in the dock) to begin the uninstall process. Delete BookMacster application using the Trashįirst of all, make sure to log into your Mac with an administrator account, or you will be asked for a password when you try to delete something. Select the process(es) associated with BookMacster in the list, click Quit Process icon in the left corner of the window, and click Quit in the pop-up dialog box (if that doesn’t work, then try Force Quit). Open Activity Monitor in the Utilities folder in Launchpad, and select All Processes on the drop-down menu at the top of the window. If BookMacster is frozen, you can press Cmd +Opt +Įsc, select BookMacster in the pop-up windows and click Force Quit to quit this program (this shortcut for force quit works for theĪpplication that appears but not for its hidden processes). Terminate BookMacster process(es) via Activity Monitorīefore uninstalling BookMacster, you’d better quit this application and end all its processes. To fully get rid of BookMacster from your Mac, you can manually follow these steps: 1. You should also be aware that removing an unbundled application by moving it into the Trash leave behind some of its components on your Mac. Mac users can easily drag any unwanted application to the Trash and then the removal process is started. Thus, different from the program uninstall method of using the control panel in Windows, Most applications in Mac OS X are bundles that contain all, or at least most, of the files needed to run the application, that is to say, Manually uninstall BookMacster step by step: Continue reading this article to learn about the proper methods for uninstalling BookMacster. Removing all its components is highly necessary. But if you are trying to uninstall BookMacster in full and free up your disk space, The settings of this program still be kept. Still remains on the hard drive after you delete BookMacster from the Application folder, in case that the next time you decide to reinstall it, Generally, its additional files, such as preference files and application support files, When installed, BookMacster creates files in several locations. Instead of installing it by dragging its icon to the Application folder, uninstalling BookMacster may need you to do more than a simple drag-and-drop to the Trash. Unlike the software developed for Windows system, most of the applications installed in Mac OS X generally can be removed with relative ease.īookMacster is a third party application that provides additional functionality to OS X system and enjoys a popularity among Mac users. How to Uninstall BookMacster Application/Software on Your Mac Where, xx.xx.xxx.xx is the “ Elastic IP or Public DNS Name” of the instance.Ĩ) Now we need to create the FTP Account, for this go to the “Edit” Tab & select “Users”.ĩ) Users Dialog box would open, here you need to select “Add” to enter the FTP Account Username.ġ0) Set the password for the FTP User as well.ġ1) Go to “Shared folders” & specify the folder or directory you want to share or allow access to the FTP user.ġ2) You can also control the permissions (Read, Write, Delete etc.) for the user on that folder & also set the specified directory as users home directory in order to allow jailing for the user.ġ3) Disable the firewall settings on your instance in order to allow connections from outside.Īll is set now download Filezilla Client on your PC specify the Hostname, FTP Username &Password of the instance & connect to it from outside. Just ship your login credentials with the lambda function. but I just used a public ftp server for testing. This will make the ftp server 'happy' and it will effectively try to open a new connection from port 20 to. With Active-FTP (port mode), this is not working. For SSH public key, specify the public key portion of the SSH key pair. They offer this as a managed service so you don’t have to stand up or configure servers, but you do have to. It provides customers with access to the SFTP protocol to upload/download files directly to/from an S3 bucket. For Home directory, choose the S3 bucket you created. The new SFTP/FTPS service from AWS is a point solution and there is really no comparison to HostedFTP’s Sync-S3 feature. NAT Server is AWS NAT Linux (kernel 4.9) with masquerading turned on. On the AWS Transfer Family console, choose Servers, select the SFTP server you created, and then choose Add user. TCP port 25 traffic is also restricted as an anti-spam measure. FTP client (10.60.0.0/24) -> NAT server (10.254.254.0/24) -> IGW -> Internet -> Firewall/NAT -> FTP Servers. Now connect to your Windows instance & do the configuration as follows.Ģ) Specify the location where you would like to install FileZilla Server.Ĥ) After the installation is complete you will get screen as shown below.ĥ) Now you need to configure the FTP Account.Ħ) Go to the “Settings” icon (marked in given below snapshot in RED circle) on the FileZilla Server Console.ħ) Now go to “Passive mode settings” & make the changes as in the snapshot & then Press OK. Inbound network connections are blocked by AWS Lambda, and for outbound connections only TCP/IP sockets are supported, and ptrace (debugging) system calls are restricted. Leaving the field at 0.0.0.0/0 to allow all.ħ) Select “Add Rule” and the “Apply Rule Changes”. You can use AWS Transfer for SFTP with Amazon Simple Storage Service (Amazon S3) or Amazon Elastic File System (Amazon EFS). It is a secure transfer service that you can use to transfer files into and out of AWS storage services over SFTP. Make the following changes through the AWS Management Console.ġ) In AWS, select “Security Groups” from the left-hand menu.Ģ) Select the name of the security group for the instance you just created.ģ) In the window at the bottom of the screen select the “Inbound” tab from the small frame.Ĥ) Pick “Custom TCP Rule” from the “Create a new rule” dropdown.ĥ) Enter 50000-51000 in the port range field.Ħ) In the source field, use discretion. AWS Transfer for SFTP is a member of the AWS Transfer Family. You need to make changes in the Security group of your Windows instance & add ports in order to allow connection to the FTP Account. See ‘Amazon EC2 security groups’ for more details on configuring your security group.I came across a requirement from one of my clients to setup an FTP account on a particular folder/directory on his Amazon Windows server instance (2008r2).īelow are the steps which I followed for setting it up. If you do, these will be the only IPs that will be able to access your instance. Unless you know the exact source IP addresses of the users that will be accessing your file server, do not add Source IPs. To add FTP (port 21), FTPS (port 990), and the FTP Passive Port Range (ports 11000-13000), select ‘Custom TCP’ from the ‘Type’ column, then enter the port number for each under ‘Port Range’ and a description. endpointdetails - (Optional) The virtual private cloud (VPC) endpoint settings that you want to configure for your SFTP server. Add descriptions that will tell you why you opened those ports (see screenshot). Amazon has pre-configured selections for SSH SFTP (port 22), HTTP (port 80), and HTTPS (port 443). For the preceding example, ports 1000-21999 are activated on the custom and Lightsail firewall. If you don’t specify a security group, Amazon EC2 uses the default security group.įor your Cerberus FTP Server instance, you should add new lines for each protocol you will be using. When you launch an instance, you can specify one or more security groups. Inbound rules control the incoming traffic to your instance, and outbound rules control the outgoing traffic from your instance. A security group acts as a virtual firewall for your EC2 instances to control incoming and outgoing traffic. In financial evolution, there are other methods of innovation including rational and behavioral aspects, e.g., backtesting and forward performance testing (often akin to adaptive heuristics in game theory ). In biological evolution this is mostly done by sexual reproduction along which genes are recombined. While the market selection force reduces the variety of species in the financial markets, Farmer ( 16) also points out that there is a countervailing force that innovates new strategies. As Farmer ( 16) notes, this evolution of wealth models the market selection process acting on the financial species, i.e., the investment strategies. Thus, in order to understand asset returns, which are the ratios of next period prices (plus eventual dividends) to current period prices, one needs to understand the evolution of wealth behind investment strategies. Equating aggregate demand with the supply of assets, asset prices are then the wealth-weighted average of a few investment strategies. Many empirical studies have shown that a few strategies are sufficient to understand the dynamics of thousands of assets. While this is a trivial operation mathematically, it shifts the focus away from the intentions behind the investment strategies (e.g., utility maximization subject to expectations) toward the actions taken in financial markets. Alternatively, one can group all investors’ wealth following the same strategy into one entity and write market demand as the wealth-weighted average of investment strategies. Indeed, in financial market models, one can write market demand for assets as the wealth-weighted average of investors’ demand. This shift parallels biological models in which the interaction of species and not that of individual organisms are considered. In particular, it would be useful to make investment strategies and not investors the actors in the model. In the seminal Santa Fe Institute working paper “Market Force, Ecology, and Evolution,” Farmer ( 16) argues that financial market models can benefit from reasoning analogous to models of biological evolution. Research in EF was started by the Santa Fe Institute, and the first time the term “evolutionary finance” appears is in one of its publications dating back to 1995. A numerical illustration of the main result is provided. Our method is analytical and based on mathematical reasoning. The model proposed employs only objectively observable market data, in contrast with traditional settings relying upon unobservable investors’ characteristics (utilities and beliefs). The problem is studied in a framework combining stochastic dynamics and evolutionary game theory. Nevertheless, we are able to identify a unique evolutionary stable investment strategy. This might create a positive feedback loop in which more investment in some asset leads to higher dividends which in turn lead to higher investments. The basis of our paper is that dividends are not exogenous but increase with the wealth invested in an asset, as is the case in a production economy. Some strategies survive and some become extinct. Diverse investment strategies compete for the market capital invested in long-lived dividend-paying assets. Financial markets are explored as evolving biological systems. The paper models evolution in pecunia-in the realm of finance. A piece will be easier to transcribe if it is slower, uses few special techniques and effects, follows basic scale patterns, consists of a lot of step-wise A term used to indicate that a melody consists mostly of motion in steps. You should be able to guess pretty accurately at the difficulty of transcribing something just from listening to it. Next, do you have a piece in mind of appropriate difficulty? You do not need to transcribe any piece in its entirety, but something does feel satisfying about transcribing a recording from start to finish. Just make sure to pick tunes that are manageable for your skill level. Ear training is both a requirement and a result of transcribing, so you may be able to jump into transcribing even if you’re not confident in your ear training skills yet. Next, how is your ear training? If your ear is more developed, you will be much more effective at transcribing. This is like a tab, except stems similar to those used in standard notation are drawn above the tab to indicate the rhythmic value of each note. It is recommended, however, to use the tablature with rhythm stems form of notation. Although standard notation is a bit more formal, tablature is fine for transcribing guitar parts-especially those which you don’t plan to share, or which will only be shared with other guitar players. Before You TranscribeĪre you going to transcribe the music into tab or standard notation? You may find that tab is easier in the beginning, and this is a perfectly acceptable way to start. And you should definitely write down all of the music you transcribed, because if you don’t, you will forget it. This implies that the transcribed notes will be written down in some form. The process of learning how to play a musical passage by ear is often called transcribing. But learning by ear is a great way to develop your ear and extend your abilities further. Musicians who can read standard notation or tab sometimes neglect the task of learning music by ear. |
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