Sahil K. Profile

4,9

(30 opinii)

Zacząłeś obserwować

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Udało się zweryfikować adres e-mail.

$15 USD / godz.

hanumangarh town,

india

$15 USD / godz.

Obecnie jest 2:09 PM tutaj

Dołączył maja 30, 2011

1 Polecenie

Sahil K.

@greendesertweb

4,9

(30 opinii)

5,6

86%

$15 USD / godz.

hanumangarh town,

india

$15 USD / godz.

97%

Ukończone Projekty

63%

W Budżecie

63%

W czasie

17%

Powtórna Stawka Zatrudnienia

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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Portfolio

Linux Tweaks Blog

Oceny

Zmiany zapisane

Pokazuje 1 - 5 z 30 komentarzy

Filtruj oceny po przez:

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 lata temu

5,0

$40,00 USD

Install windows server on digital ocean droplet

Hope we will work again soon, thank you

Shai C.

@erany

•

5 lat temu

4,8

£1 615,00 GBP

Project for Sahil K. -- 2

Excellent

+1 więcej

Abba K.

@abbakhan

•

6 lat temu

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 więcej

Abba K.

@abbakhan

•

6 lat temu

5,0

£10,00 GBP

Project for Sahil K.

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

+1 więcej

Paolo P.

@paolonewage

•

6 lat temu

Doświadczenie

Emizentech Pvt. Ltd.

lut 2014 - Obecnie

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

sie 2010 - lut 2012 (1 , 6 miesięcy)

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.

Edukacja

M.Tech.

India

2012 - 2014

(2 lata)

B.Tech.

India

2006 - 2010

(4 lata)

Kwalifikacje

Engineering College Bikaner

2009

Certification for Linux Administration

Publikacje

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