linux memoery space command

memory space

linux memoery space command

May 13, 2014April 9, 2016 eduguru 0 Comments # df -h will show you where your free space (if any) is, and only 25GB free on your /home partition. So, du -sh /root), if you don't have additional drive space, linux memoery space command, on your mounted partitions. # du -sh /* will show you how much drive space each of your top-level directories are consuming, which might help identify files that don't need to be on the root partition # fdisk -l (that's a lower-case L). This will show us what drive partitions you have on the system (and whether you've got a, while you may be able to identify files to move from the / partition over to the /home partition, you can dig a level deeper with: # du -sh /DIRECTORYNAME (e.g., you may not be able to grow the / partition... Once you've identified what directory(ies) have the most contained in them

# df -h will show you where your free space (if any) is, on your mounted partitions. # du -sh

Command for determining my public IP on linux PC

April 28, 2014 eduguru 0 Comments Command for determining my public IP on linux PC, Finding external IP using external services The easiest way is to use an external service via a commandline browser or download tool. Since wget is available by default in Ubuntu, use- wget -qO- http://ipecho.net/plain ; echo, we can use that. To find your ip

Finding external IP using external services The easiest way is to use an external service via a commandline browser or

Effective IVR Menu Design

April 25, 2014February 24, 2016 eduguru 0 Comments ‘Check balance’ or press 1, ‘Open account’ or press 2 or ‘Transfer funds’ or press 3.” 4. Use the same part of speech/clausal form in all listed menu options. Be consistent so that callers aren’t confused. Bad prompt: System: Yo, ‘Open account’ or press 2 or ‘Transfer funds’ or press 3.” Instead, ’ ‘Open account’ or ‘Transfer funds’”—and, “Balance, “Check balance, “Checking, “To speak with one of our agents about becoming a registered customer, “What are my choices?” At any point in the call, “What are my choices?” In response, ” “Open account” or “Transfer funds.” 5. Keep your menus consistent with one another. Once users have gotten past the first menu, ” “Open account” or “Transfer.” Good prompt: System: You can say, ” “Savings” or “Money market.”, ” “Savings” or “Money market.” User: Savings. System: Transferring funds from savings. 3. Avoid mixing voice and DTMF menu choices. If your application is voice enabled, ” “Withdraw funds” or “Transfer funds.” User: Transfer funds. System: Transferring funds. Which account do you want to transfer funds from? You can say, ” played prior to listing the menu items, 1. Never allow holes in your Dual Tone Multi-Frequency (DTMF or touch-tone) choices. We say that a menu has a hole if the options presented are not sequential. A menu that offers the user the option t, 2 and 3 does not. Avoiding holes helps IVR systems avoid confusing users. 2. Mark their current position in the menu tree. A simple “Main menu, 2 or 4 has a hole. A menu that offers the options 1, avoid cramming your menu prompts with instructions on how to pick menu items by voice and by DTMF. Avoid, Effective IVR Menu Design, first, first offer users the leaner, for instance, list a menu header whenever you traverse a path and then list the sub-menu options. In case of a no-input or a no-match, make sure sub-menus only offer options that apply to them. For example: in the opening menu, none of the sub-menus offers options that apply only to non-registered customers (e.g., only if the user seems to have trouble with it, positioning the user in the menu tree and then listing the menu items that the user can select from. Example: User: What are my choices? System: We were transferring funds. I need to know which accoun, press 3”). 6. Let users ask, revert to the mixed prompt: “You can say ‘Check balance’ or press 1, the system should respond by, the user should be able to ask, then list the full path prior to replaying the menu prompt. Example: System: Main menu: you can say, voice-only menu: “You can say, will reduce user confusion as to “where” they are in the dialog. The menu position marking becomes even more important as the user is led deeper into the menu tree. When you are leading a user down a , wording such as “You can say, you ask the user to indicate whether or not they are a registered customer and then you branch off accordingly. Make sure that after users indicate that they are a registered customer

You can use interactive voice response (IVR) to obtain information from callers and direct the call to the appropriate queue.

How can I download an entire website?

April 15, 2014 eduguru 1 Comment convert the links in document for local viewing. -P ./LOCAL-DIR : save all the files and directories to the specified directory., How can I download an entire website?, wget --mirror -p --convert-links -P ./LOCAL-DIR WEBSITE-URL –mirror : turn on options suitable for mirroring. -p : download all files that are necessary to properly display a given HTML page. –convert

wget –mirror -p –convert-links -P ./LOCAL-DIR WEBSITE-URL –mirror : turn on options suitable for mirroring. -p : download all files that are

Linux IP Commands

April 15, 2014 eduguru 0 Comments Disable network card: ifconfig eth0 down, Display Current Config for all NIC’s: ifconfig, Display Current Config for all NIC’s: ifconfig Display Current Config for eth0: ifconfig eth0 Assign IP: ifconfig eth0 192.168.1.2 Ping: ping -c 3 192.168.1.1 Assign multiple IP’s: ifconfig eth0:0 192, Display Current Config for eth0: ifconfig eth0, Linux IP Commands, Reverse Lookup: host IP, Trace Route: traceroute www.whatismyip.com

Display Current Config for all NIC’s: ifconfig Display Current Config for eth0: ifconfig eth0 Assign IP: ifconfig eth0 192.168.1.2 Ping:

Office internal chat system : openfire-spark

April 1, 2014February 28, 2016 eduguru 0 Comments Configure and install open source chat, Office internal chat system : openfire-spark, Openfire is a powerful instant messaging (IM) and chat server that implements the XMPP protocol. Download Openfire software from the below link. http://www.igniterealtime.org/downloads/ You can also d

Openfire is a powerful instant messaging (IM) and chat server that implements the XMPP protocol. Download Openfire software from the

RTMP – Real Time Messaging Protocol

March 31, 2014 eduguru 2 Comments and by splitting them in fragments, and can make remote procedure calls, and data, and other quality-of-service requirements. RTMP defines several virtual channels on which packets may be sent and received, and RTMPT which is encapsulated within HTTP requests to traverse firewalls. The use of RTMP is to avoid latency in communication, and specifications about it have only partially been released for public use., and specifications about it have only partially been released for public use. According to those specifications, and which operate independently of each other. During a regular RTMP session, between Flash media Server and Flash player. A two way connection is established between Flash server and Flash player which allows for a real-time communication back and forth. Example of data that c, deliver audio or video streams smoothly, for example – video. Once the media server receives the request (for the stream), for example and more… How it Works? Flash player first contacts the Flash media server and an RTMP connection is then established. An RTMP connection is said to begin with a “handshake”. Flash player , i.e. the “plain” RTMP protocol, it is sent to Flash SWF directly over the RTMP connection. The same stream can be sent to any number of clients that request it, latency, mainly, make them interleaved and multiplexed over a single connection. Also, or allows for – large events., or RPCs. The Original Flash Streaming Protocol RTMP is also considered the original flash streaming protocol as developed by Macromedia, provided the bandwidth is good enough on both sides to deliver all the simultaneous streams. Additional media servers can be chained together, Real Time Messaging Protocol or RTMP is mainly serving for high speed transmission of audio, RTMP – Real Time Messaging Protocol, RTMP – Real Time Messaging Protocol Explained, RTMP encapsulates MP3 or AAC audio and FLV1 video multimedia streams, RTMPE which is RTMP encrypted using Adobe’s own security mechanism, RTMPS which is RTMP over an TLS/SSL connection, several channels may be active simultaneously at any given time. In result, the protocol is now owned by Adobe, the RTMP protocol has multiple variations, then Adobe for streaming audio, video, video and data between flash player and a server. Initially developed by Macromedia, which in result improves capacity, with RTMP packets across several different active channels being interleaved in such a way as to ensure that each channel meets its bandwidth, you save bandwidth. Interleaving and multiplexing is done at the packet level

Real Time Messaging Protocol or RTMP is mainly serving for high speed transmission of audio, video and data between flash

Advantages and Disadvantages of HTTP, RTSP, and RTMP

March 31, 2014March 31, 2014 eduguru 1 Comment a factor that can affect cost in large distribution models. In general, a new method for real-time cryptographic protection of content offered by Adobe. Some HTTP approaches such as Smooth Streaming are rapidly moving toward deployment of solutions for DRM as well. Howeve, Advantages and Disadvantages of HTTP, Advantages and Disadvantages of HTTP RTSP and RTMP, and 2010 Winter Olympics), and if you are a distributor or aggregator, and it may provide a contractual and legal hurdle with rights holders who stipulate that DRM be used to protect their content. As a mode of transport, and perhaps most importantly, and rights holders are very familiar with the ecosystem. For example, and RTMP, and RTMP Which technology and delivery mode will work best for you? The answer depends on many data points. Let's explore a few. How large is your anticipated daily traffic or single event? Do you nee, because of the specialized skills needed to set up and manage those servers and the complexity in ensuring the content could get to the user. Today, but has not reached full market penetration yet. Microsoft's Silverlight has broad support on new PC builds; it is being used for some large-scale sports events (March Madness, but has not yet achieved the reach that Flash currently enjoys. Additionally, but how granular must your details be? Due to the nature of RTMP discussed previously-where the player and server are in constant communication-reporting within RTMP is much more detailed and granular, but HTTP does so natively and without the need for proprietary or custom configurations. Access is another consideration. Can everyone view your content after you make it available? From a site visito, but in rare instances streams have been circumvented and saved locally using third-party applications. The availability of plug-ins may be a concern to you as you consider these technologies. Flash is, but it has caveats. Dynamic Streaming requires Flash Player 10, but probably should not be.) What is the length of your content: many files with short duration, but reporting is more robust with RTMP now. Finally, but the ability still exists. Conversely, for large-scale events, however, HTTP can be captured and saved locally. Chunked delivery can make this local capture more challenging, HTTP natively and easily supports mirroring and edge caching, HTTP still represents most web traffic. Consider that pushing video through those same protocols and methods enables CDNs and those who own their infrastructure to realize economies of scale and the c, if you do not want to deal with firewalls and proxies, if your video is compelling and users are required to install a plug-in, is not a commonly accepted form of DRM, it tries to reconnect using a few different methods. To summarize, many CDNs charged a premium for RTMP streaming transit, more available hardware and software works unmodified and as intended with HTTP than with RTSP or RTMP. Expertise in customizing HTTP content delivery using tools such as Hypertext Preprocessor (PHP) , most will. Tracking your content and how many people view it is a "must have" for most, Network Address Translation (NAT), nor do CDNs. Security is critical with a lot of content, one advantage of using HTTP is access. Many corporate networks use firewalls to block specific content. Popular methods of blocking are protocol and port restrictions. Some firewall rules allow only H, one version of RTMP is RTMP Encryption (RTMPE), or fewer files with very long length? HTTP is less likely to be disallowed by routers, or firewall settings. No ports that are commonly closed by default need to be opened. Content is therefore more likely to get through to the client in more locations and without special settings. HTTP, organizations such as Major League Baseball (MLB) and Indy Racing are using technologies from third-party providers that use HTTP, providing for massive-scale expansion when needed for the largest events. RTSP and RTMP can also be cached, RTMP is much less susceptible to local data capture, RTMP is the best technology. HTTP does not provide this function, RTSP, securing your content may be a concern. Some ABR technologies provide for secure transmission through Secure HTTP (HTTPS), such as Swarmcast and Conviva. To summarize, the "Flash tax" is gone and the total cost to deliver content through RTMP has decreased. However, this luxury is not always shared with RTMP-delivered Flash Video. The default port for RTMP connections is 1935-a port that may not be allowed on tight firewalls. If the first attempt of the Flash Pla, what will it cost you to provide this content to your users? What will a CDN charge you to provide your content in one mode versus another? In the past, which is growing in adoption (and pegged at nearly 80 percent as of July 2009), which represents the secure way of transmitting HTTP video. HTTPS, Wimbledon, you know the term digital rights management (DRM) all too well. Can or will you allow your content to be saved locally on a user's machine? RTMP has broad DRM support, you should consider HTTP. One benefit with RTMP worth mentioning here is its ability to provide multicast support. If you run an enterprise and want to take one stream inside your corporate network an, your total cost of ownership (TCO) may be less with HTTP than with RTMP.

Advantages and Disadvantages of HTTP, RTSP, and RTMP Which technology and delivery mode will work best for you? The answer

HTTP versus RTMP : Which Way to Go and Why

March 31, 2014March 31, 2014 eduguru 0 Comments " to the server by issuing commands such as PLAY or PAUSE. When a session between the client and the server is established, and data over the Internet between a Flash player and a Flash Media Server. Like RTSP, both commercial and open source. Real Time Streaming Protocol (RTSP) is a network control protocol used in entertainment and communications systems to control streaming media servers. RTSP is used to , HTTP versus RTMP, HTTP versus RTMP : Which Way to Go and Why, Hypertext Transfer Protocol (HTTP) refers to the protocol used to deliver webpages and images across the Internet worldwide. HTTP is an adopted, meaning that from the first time a client connects until the time it disconnects, open standard-the most ubiquitous mode of delivery online. HTTP is a "stateless" protocol; think of it as an airline ticket to anywhere. HTTP can be delivered by a variety of web servers, or "states, RTMP is an example of a traditional streaming protocol, such as PLAY and PAUSE, the server begins sending the media as a steady stream of small information packets. This behavior continues and repeats until the server or player client closes the session., the streaming server keeps track of the client's actions. The client communicates its actions, though it is only one of many versions of streaming protocols for the web. RTMP is defined as a stateful protocol, to facilitate real-time control of playback of media files from the server. Microsoft's Smooth Streaming is a hybrid delivery method that acts like traditional Real-Time Messaging Protocol (RTMP) refe, usually server and player client. Clients of media servers issue VCR-like commands, video

Hypertext Transfer Protocol (HTTP) refers to the protocol used to deliver webpages and images across the Internet worldwide. HTTP is

Linux Gateway / Router IP Address

March 28, 2014 eduguru 1 Comment How Do I Find Out My Linux Gateway / Router IP Address? need to use route command. This command can manipulates the kernel’s IP routing tables. It can be also use to print gateway / router IP address., Linux Gateway / Router IP Address

How Do I Find Out My Linux Gateway / Router IP Address? need to use route command. This command can