Thursday, May 18, 2017

Senior Linux Administrator

Roles and Responsibilities:
  • System Administration - including managing the trouble ticket queue, responding to proactive monitoring alerts, executing change controls, routine maintenance, shell scripting, performance monitoring, tuning, and system diagnostics.
  • 24x7 rotational on-call support, including escalation to Emergency Response Team (ERT), driving Root Cause Analysis (RCA), Preventative action follow-though, and participation in weekly operations reviews.
  • Participation in all on-going infrastructure initiatives including: Software Currency, Hardware Technology Refreshes, Security hardening / Patch currency, and Enterprise Monitoring process improvements
  • Implement Operating System security policies and procedures, in line with Client objectives.
  • Adherence to all infrastructure build standards and final certification of all new system builds through a formal team Operational Readiness reviews
  • Regular proactive capacity planning and tending reviews of all systems
  • Efficient system resource utilization, including optimal performance and management of resource Sharing environments
  • Interaction with 3rd party vendors, Client Teams and senior onsite Systems Engineers as necessary to optimally perform job responsibilities
  • Create and Maintain detailed up to date technical documentation (e.g. standards, process, Run Books)
  • Detailed reporting on the status of trouble tickets and Build projects through defined processes.

Requirements:

  • Bachelors' degree in Computer Science or equivalent.
  • 5+ years of 7*24 Production support experience in managing Linux/Unix environments across different hardware platforms.
  • Hands-on experience in build, clustering, configuration, design, deployment and scalability of Linux/Unix server hardware.
  • General Administration of Unix/Linux - Installation, Users Creation, Group Creation, Permissions, Creations of Folders, Mail (Send Mail, Postfix, Spam Filter Assassin), Web (Apache, Tomcat), FTP, DHCP, DNS, Proxy (Squid), Samba, Firewall (NAT, IP Tables, Packet Filter, IP Filter) LDAP, NFS, NIS, Clear case, Rebuilding the Kernel, Integrating Windows to Linux Domain, Domain in both Windows (ADS) and Linux using LDAP
  • Must be part of the 7*24 on-call schedule for UNIX administration; must be enthusiastic about learning and supporting other flavors of UNIX administration (eg. Solaris, AIX). Understanding of the implementation and configuration of clustering software for the primary OS is strongly desirable.
  • Hands-on experience with installation and troubleshooting various Linux/Unix flavors like RedHat, Fedora Core, CentOS. Must be able to write scripts using Shell (Bash/Ksh/csh) and Perl.
  • Excellent verbal and written communication skills, organization skills, and analytical skills, Leadership skills
  • Excellent customer service & teamwork skills, quality and changed oriented with initiative and eager ability to learn.
  • Ability to operate effectively at all levels, including internal account management and local customer environment to maximize opportunities and improve customer service.
  • Having B1/H1 visa will be an added advantage.

Thursday, May 4, 2017

Ten things you need to think about when buying your first DSLR camera

http://economictimes.indiatimes.com/news/brandwire/ten-things-you-need-to-think-about-when-buying-your-first-dslr-camera/articleshow/44898218.cms


Perhaps, a DSLR camera if you are a photography enthusiast? But buying your first DSLR can be a confusing proposition.

So many things to keep in mind - cost, brand, tech specifications, what accessories to buy... 
Need some help? Ok, so here's what all you need to keep in mind if you are also thinking of getting a DSLR. 

1. The purpose 

It's your first one, so, you have to keep in mind the purpose you want to use it for. Whether you want it for. Whether you want it for amateur photography, professional clicks, personal use, etc. , all these factors are important.

2. The budget 

Of course, you have to plan it according to your budget! Go for a DSLR which has all the features you desire. It's always a good idea to compare the prices, but you can't be compromising on the features. 

You can get the zoom lenses while purchasing the DSLR itself. Try Canon EOS 1200D double zoom kit, which will make you save about 13 grands. 
3. Image quality 

Everybody who buys a DSLR eventually wants great image quality. So, it's a really important factor to keep in mind when buying your first DSLR. You can try Canon EOS 1200D's APS-c size 18 megapixel sensor which will get you crisp and vibrant images. 

4. The processor 

Your shooting performance needs to be responsive. A strong performing processor communicates with sensor providing you high quality results. So, for your first DSLR, you can try the canon EOS 1200D with Digic 4 processor. It provides quick Camera start-up and delivers smooth reproduction. 

5. The grip and size 

It may seem like a trivial thing, but the grip and size of the camera is kind of an important factor. Always try holding and carrying the DSLR before you finally purchase it. Because some of them can be really bulky, or the grip can uncomfy, which would make it difficult to use and carry around. The Canon EOS 1200D provides a contoured body with rubberized grip - fits in your hand perfectly and prevents from slipping. 

6. Versatility with View finder and Live View shooting 

Shooting through a viewfinder gives a beginner a feel of a pro. Optical view finder allows you to see exactly what you shoot with accurate focusing. DSLRs today are much more convenient with their high-quality LCD screens and benefit of Live View Shooting. 

Easy checking of focus and previewing your final image before shooting, especially in low light are the few benefits of live view shooting. And Luckily, EOS 1200D is equipped with it all. 

7. Videomaking in Full HD 

Why just capture your life in still? You can easily capture videos with your DSLR and make your memories more interesting. Especially with full HD recording capture video in high quality. And you can later view it on your HDTV. 
8. Compatibility with various lenses 

One major advantage of shooting with DSLR Cameras is ready compatibility with various lenses for shooting in all kinds of situation. Canon EOS 1200D has a large family of EF & EF-S lenses with over 70 lenses to choose from. 

9. The lens cleaning kit 

Yes, the lens cleaning kit is a must have while buying a DSLR. Like or not, you'll eventually end up with dust and finger marks on your lens, which will definitely disturb your shooting experience. You should buy a good microfiber cloth with lens cleaning solution with your first DSLR. 
10. The accessories 

Since it's your first DSLR, buying the proper accessories along with it is also important. Just focus on buying only necessary accessories for you First DSLR. On buying EOS 1200D you can get camera case, USB cable and 8GB SD card for free to all purchaser. Additionally, for the festive period, by buying EOS 1200D Double Zoom Kit, you can also get Mobile Charger. 

But wouldn't it be awesome if you manage to get in some accessories on great offers? How about some flight tickets thrown in too? Too good to be true, huh! Check out Canon's latest offer where you get to win Indigo airlines tickets, portable charger, camera carry case, and more on purchase of the Canon 1200D DSLR camera. 

Tips and tricks for you to become the ultimate DSLR pro


UNDERSTANDING THE BASICS 

Aperture 
Aperture controls the amount of light the lens lets in and the depth of field in an image — this determines how bright the image will be and how much of the area behind/in front of the subject will be blurred. Aperture is counted in f-stops on any camera — denoted as f2.8, f3.5, f8, f16 and so on. A lower f number means a wider aperture which in turn means a shallow depth of field. This highlights the subject and is ideal for portraits. A higher f number or narrow aperture keeps everything in in-focus. This works great for landscape photographs. 

ISO Level 
ISO refers to light sensitivity; higher the ISO, higher the sensitivity and vice versa. The values are counted in numbers and it starts as low as 50 going as high as several lakhs. If you are shooting at a low ISO, your camera is less sensitive to available light so you shoot in low ISO when there’s lot of light available. Lower ISOs mean better quality images overall, so there is always a trade-off. A higher ISO level makes the camera more sensitive to available light and therefore is ideal for use in low light environments. At higher ISO levels, cameras tend to add a lot of grain in the image. This will be one of the primary differences between cheap and expensive DSLRs: with more expensive ones, you will be able to push the ISO up to 800, 1600, 3200 and more to still get good, noise free results
White Balance 
White balance is the adjustment of individual colours to make the image look more natural and closer to original. Few bother about white balance since most cameras offer excellent automatic white balance. However, if you feel that the colours on your photos not the same as the actual image, you may need to manually set the white balance depending on the kind of light you are using. White balance settings will adjust the camera’s colour temperature range for cloudy light, indoor fluorescent light, sunny, tungsten light and so on. You can also try manual modes in different scenarios for interesting results. 

Shutter Speed 
The shutter speed is the amount of time that the sensor is exposed to light. Like aperture, it lets you control the amount of light that will reach the sensor but it also has other effects. A fast shutter speed, like 1/100, 1/250 going up to 1/4000 and above lets you freeze moving objects. A slow shutter like half a second, 1 second or even a few seconds keeps the sensor exposed to a lot of light. This is ideal for capturing images in low light environments. It can also show objects in motion by blurring the moving parts. Do keep in mind that you will need to use a tripod to stabilize the camera when you use slow shutter speeds. 

THINGS TO REMEMBER 

Avoid Using The Built-in Flash 
The built-in camera flash is used by a lot of beginners when shooting in low light. It typically tends to give the photos a flat feel, makes the eyes look red in low light and even tends to overexpose things that are too near the flash. Instead, you should invest in an external flash. This lets you control the angle of light so that it acts as a soft fill light rather than a hard front light. You can even add a diffuser, control the intensity of the flash that comes out as well as bounce the flash off other surfaces for interesting effects 

When in Doubt, Use a Tripod 
Many beginners make the mistake of trying to hold the camera in a maximum of scenarios. While bright, day photos can be done handheld, most other situations will give you better results with a tripod. Invest in a good tripod to use with your camera. There are different types of tripods available — some are basic with height adjustment, others let you control the pan and tilt for different angles and offer extras like a spirit level (to check that the horizon is level).

Better Composition 
Most photographers tend to start with the rule of thirds. The rule of thirds requires you to imagine that the frame is divided into 9 equal parts using evenly placed vertical and horizontal lines. The points at which the lines intersect in the frame are the ideal points at which you should place your subject. This adds depth to your photos and makes the subject stand out. Only when you learn to use the rule of thirds is when you can learn how to break it. 

Post Processing 
Apart from learning the basics, post processing is something that every photographer must learn to get the best results. However, keep in mind that if you shoot in jpeg, you can only apply a limited amount of post processing. If you shoot in RAW, post processing will allow you to tinker with almost every aspect of an image including exposure and white balance after the fact. There are several software available for post processing such as Adobe Lightroom, Photoshop, Dxo Optics and Corel Paintshop that you can try.