Sahil K. Profile

4,9

(30 ulasan)

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$15 USD / jam

hanumangarh town,

india

$15 USD / jam

Saat ini 10:21 PM di sini

Bergabung Mei 30, 2011

1 Rekomendasi

Sahil K.

@greendesertweb

4,9

(30 ulasan)

5,6

86%

$15 USD / jam

hanumangarh town,

india

$15 USD / jam

97%

Pekerjaan Selesai

63%

Sesuai Anggaran

63%

Tepat Waktu

17%

Tingkat Rekrut Ulang

Linux System Administrator

Linux server administrator with more than 5 year of experience in the management and analysis of linux servers. Advance knowledge with setup highly scalable servers with performance tuning, server security, Cloud Computing, Amazon EC2, Troubleshoot problems. Expertise in - Designing Web Server - Buliding web server based on Apache, Nginx, Nginx/php-fpm, Varnish as backend. Security - Malwaere removal , server hardening , Firewall, SSL Certificate installation. Database Server - Building mysql ,tweaking mysql variables for performance Scripting - Bash Scripting for monitoring servers, auto backup. Mail server- Building mail server for sending and recieving mails exim,postfix,sendmail,troubleshoot mail issues. Monitoring services and servers - Nagios monitoring tool Amazon - AWS EC2 server setup , Security. Performance - Tune web & database server, varnish, redis, pagespeed, memcache, apc with Magento, Wordpress,Joomla. Virtualization Technology - VMware VSphere Esxi/Xen Server

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Menampilkan 1 - 5 dari 30 ulasan

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5,0

$300,00 USD

Project 32117549 has been deleted

He is a great guy to work with, we will work with him again

Bashar S.

@slashtec

•

2 tahun yang lalu

5,0

$40,00 USD

Install windows server on digital ocean droplet

Hope we will work again soon, thank you

Shai C.

@erany

•

5 tahun yang lalu

4,8

£1.615,00 GBP

Project for Sahil K. -- 2

Excellent

+1 lagi

Abba K.

@abbakhan

•

6 tahun yang lalu

5,0

€1.420,00 EUR

Project for Sahil K.

Sahil is a fantastic professional in his work and customer service! One can get a freelancer like him only in dream, its good luck for me to get him in real life, specially in the deep jungle of FL "professionals" His attitude in work, service, quality overall everything is TOP class +

+1 lagi

Abba K.

@abbakhan

•

6 tahun yang lalu

5,0

£10,00 GBP

Project for Sahil K.

Professional, fast and...knows what the job!!

+1 lagi

Paolo P.

@paolonewage

•

6 tahun yang lalu

Pengalaman

Emizentech Pvt. Ltd.

Feb 2014 - Sekarang

System administration of multiple servers (Red Hat, Centos,OpenSuse,Ubuntu). Installation of different types of linux Distro with XenServer and VmWare Esxi for VPS Setup. Configuring Apache,Nginx Web servers, SSLs,Php,Php-FPM, Mysql Tuning. Worked with Mail server (Sendmail,iRedMail,Exim,Postfix) Worked with Git,Svn version control system. Bash Scripting for Automated backup of servers and monitoring servers. Varnish,Redis,Memcache installation and configuration. Nagios Monitoring Servers.

Eperium Business Solution India

Agu 2010 - Feb 2012 (1 tahun, 6 bulan)

Installation of different types of linux Distro with ftp/http/network installation. Shell Scripting (Bash). Configuring apache web servers, SSLs,Php. Worked with Mysql Performance Tuning. Monitoring servers using Nagios open source tool. Worked with Sendmail,Postfix mail server. Package installation Using “Yum” ,”rpms”,”Zypper” and “Source”. Worked with OpenFire Internal messenger tool. Configured Tripwire for monitoring files. Worked with Git,Svn version control system. Created bash script for Automated backup of servers and monitoring servers. Server Optimization with different application. Configuring Tomcat,Java Bridge for Payment Gateway.

Edukasi

M.Tech.

India

2012 - 2014

(2 tahun)

B.Tech.

India

2006 - 2010

(4 tahun)

Kualifikasi

Engineering College Bikaner

2009

Certification for Linux Administration

Publikasi

PDAC (Parallel Encryption with Digit Arithmetic of Cover Text) Based Text Steganography

Elsevier

This paper presents an efficient text steganography approach based on simple mathematical calculation and parallelism. In this approach we are doing simply addition and subtraction with the digits of ASCII code of each character of cover text and then this new digits will use to encrypt our plaintext. For enhancing the performance of our algorithm we use parallelism for encryption. In this approach one character of cover text hides four character of plaintext so it will increase the performance such as me

ECR(Encryption with Cover Text and Reordering) based Text Steganography

IEEE

This paper presents ECR(Encryption with Cover Text and Reordering) based text steganography approach which works on simple encryption technique using ExOR Operation of to characters and reorder them which would be more secured and hard to fetch original message from enciphered text. Our encrypted text is reordered using Eight bit random key for hiding our data in a more secure way. Our Eight bit random key will contain four number of zero and four number of one where one bit describes our encrypted text and