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Linux
Microsoft Exchange
Network Administration
Python
Windows Server
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Brukeravatar
$30 USD / time
VIETNAMs flagg
ho chi minh, vietnam
$30 USD / time
Det er for øyeblikket 2:10 a.m. her
Ble med desember 23, 2012
6 Anbefalinger

Khanh T.

@khanhtd

 5,0 (119 omtaler)
7,3
7,3
100%
100%
$30 USD / time
VIETNAMs flagg
ho chi minh, vietnam
$30 USD / time
100 %
Jobber fullført
98 %
Innenfor budsjett
100 %
I tide
47 %
Gjenansettelsesrate

Python / Linux Developer

Worked 15+ years in software development, network and system administration, team collaboration and project management. Scopes of work provided: • Command-Line Interface (CLI) Software • Automation Tools / Background Services / Socket Services • Web Application / RESTful API • Web Scraping / Crawling (with Headless Browser) • Parsing / Analyzing Data • Linux Systems / Services Troubleshooting • Docker Solutions / VPN Solutions (open-sources only) • CI/CD and DevOps Solutions Programming and language skills: • Python (the most expertise) • BASH Scripting • PHP / Javascript Other technology stacks: • Linux OS (all variants of distro) and Open-sources
Freelancer Windows Server Experts Vietnam
Se alle Windows Server Experts i Vietnam

Kontakte Khanh T. angående jobben din

Logg inn for å diskutere eventuelle detaljer over chat.

Portefølje

4557178
A service running in the background which screens and filters network packets contain chat messages which are sent to the server through WebSocket protocol. The filtering engine did its jobs by referring to a predefined rule-set, also asking third party public services for any general blocking patterns. There was also a limiting engine equipped to prevent users from overusing or exploiting the chat servers system. This service is a multiprocessing program written in Python, utilizing libnetfilter_queue kernel shared library, iptables and running in Linux environment. It was able to serve up to 15K concurrent users at a same time.
Packet Filtering with Netfilter
4561106
Search for the same products as what you are providing or selling, do a comparison to find out which product is lowest in price. In order to accomplish this, the tool needs to access and login to your store (or e-commerce) website as well as connecting and being granted to "eBay API". This tool was built with respect to the eBay "API Call Limits", their usage guidelines and site policies. It was completely written in Python, directly run from the Linux console (or command line) or triggered by a Linux crontab service. Its running progress was kept in log files for easily tracking and/or debugging.
eBay Lowest Price Search
3323835
Use BASH scripting language to: * Setup ad configure StrongSwan VPN automatically * Enable RADIUS authentication by integrating StrongSwan with freeradius package, done during StrongSwan setup and configuration
Automating VPN setup with RADIUS authentication
3150523
EQC is an engine used for routing SMTP messages based on user reputation, IP healthiness and email volume sent. It's also having some features: * Merge email before sending * Probe sending to priorly verify campaign reputation before delivering whole campaign * Reduce the rotation of IPs by allocating most frequently used IPs for user * Warm-up IP during sending periods
Email Quality Control
1266654
- Map drivers and printers to many group of users, each group have different network folder and printer shares to match their specific using purposes.
Group Policies setup to map network drives & printers
1294264
Environment: - Active Directory in mix of Windows 2000 and 2003 - Exchange 2003 with several hundreds of mailboxes - Current providing services: OWA, Outlook MAPI, ActiveSync Transition Steps: - Prepared AD and installed Exchange 2010 - Configured Exchange 2010 to coexist with the old one - allow service access in case half of users were in 2003 and the other half in 2010 - Configured mail routing between two systems and made new Exchange system be publicly acceptable for sending out emails over internet - Transitioned all mailboxes and stuffs to new Exchange 2010
Transition Exchange 2003 to Exchange 2010
4557178
A service running in the background which screens and filters network packets contain chat messages which are sent to the server through WebSocket protocol. The filtering engine did its jobs by referring to a predefined rule-set, also asking third party public services for any general blocking patterns. There was also a limiting engine equipped to prevent users from overusing or exploiting the chat servers system. This service is a multiprocessing program written in Python, utilizing libnetfilter_queue kernel shared library, iptables and running in Linux environment. It was able to serve up to 15K concurrent users at a same time.
Packet Filtering with Netfilter
4561106
Search for the same products as what you are providing or selling, do a comparison to find out which product is lowest in price. In order to accomplish this, the tool needs to access and login to your store (or e-commerce) website as well as connecting and being granted to "eBay API". This tool was built with respect to the eBay "API Call Limits", their usage guidelines and site policies. It was completely written in Python, directly run from the Linux console (or command line) or triggered by a Linux crontab service. Its running progress was kept in log files for easily tracking and/or debugging.
eBay Lowest Price Search
3323835
Use BASH scripting language to: * Setup ad configure StrongSwan VPN automatically * Enable RADIUS authentication by integrating StrongSwan with freeradius package, done during StrongSwan setup and configuration
Automating VPN setup with RADIUS authentication
3150523
EQC is an engine used for routing SMTP messages based on user reputation, IP healthiness and email volume sent. It's also having some features: * Merge email before sending * Probe sending to priorly verify campaign reputation before delivering whole campaign * Reduce the rotation of IPs by allocating most frequently used IPs for user * Warm-up IP during sending periods
Email Quality Control
1266654
- Map drivers and printers to many group of users, each group have different network folder and printer shares to match their specific using purposes.
Group Policies setup to map network drives & printers
1294264
Environment: - Active Directory in mix of Windows 2000 and 2003 - Exchange 2003 with several hundreds of mailboxes - Current providing services: OWA, Outlook MAPI, ActiveSync Transition Steps: - Prepared AD and installed Exchange 2010 - Configured Exchange 2010 to coexist with the old one - allow service access in case half of users were in 2003 and the other half in 2010 - Configured mail routing between two systems and made new Exchange system be publicly acceptable for sending out emails over internet - Transitioned all mailboxes and stuffs to new Exchange 2010
Transition Exchange 2003 to Exchange 2010

Anmeldelser

Endringer lagret
Viser 1 - 5 av totalt 50+ omtaler
 Filtrer anmeldelser etter:
5,0
$100,00 USD
Project for Khanh T.
very good excellent!!!!!!!!!!!!!!!!!!
Python
Linux
Microsoft Exchange
Windows Server
+1 flere
C
Closed User
@cafecapsuleone
•
5 år siden
5,0
$300,00 USD
Project for Khanh T. -- 19/04/28 10:10:20
I highly highly highly recommend it
JavaScript
MySQL
HTML5
Bash Scripting
+1 flere
Brukeravatar
s flagg Rizik A.
@zaid27
•
5 år siden
5,0
$85,00 AUD
Project for Khanh T. -- 4
Awesome job , always great quality of work . beyond expectation!
Python
Linux
Microsoft Exchange
Windows Server
+1 flere
Brukeravatar
s flagg Web D.
@webdeveloper256
•
5 år siden
5,0
$1 025,00 USD
Build a tool for scheduling hours in a web based calendar
excellent as usual always delivering on time and clean code
PHP
Java
JavaScript
Software Architecture
HTML
Brukeravatar
s flagg Juan I.
@juanc2503
•
5 år siden
5,0
$25,00 USD
Project for Khanh T. -- 2
Still the best freelancer I've come across here, and very good value for money. Khanh is a high integrity and commitment freelancer.
Python
Linux
Microsoft Exchange
Windows Server
+1 flere
A
s flagg Anton D.
@adpatza
•
5 år siden

Erfaring

Python / BASH / PHP / Linux / Microsoft

Freelancer
des. 2012 - Nå
- Python Developer: Web App, Web Services, Web Scraping/Crawling, RESTful API, Command-Line Interface Software, Auto tools, Security tools, DevOps, Text Parser, Data Analysis, etc. - PHP Developer: mostly built WordPress plugins. - Linux Engineer / BASH Scripting: Docker, VPN, RADIUS, Web Hosting (Web/DB/Mail/DNS), Proxy (forward/reverse/anonymous), Automated Server Setup/Configuration, etc. - Microsoft Engineer: transition/migration/troubleshooting of Exchange, Active Directory, Windows Server.

Head of Technical Department

Marketing Hurricane JSC. (who owns former www.sendmass.com)
jun. 2014 - jan. 2017 (2 år, 7 måneder)
- Led the development of an Email Marketing Sending technology platform, mostly dealt with: Linux and open-sources technologies, Python/PHP/BASH as mainly programming/scripting languages, Sending Reputation, IP/Domain Reputation, Global Blacklists/Whitelists, Spam Score, IP Warm-up, Fraud Detection, etc. - Led the development of Email Editing Tool as a Word Processor via WebUI. - In charge of technical design/workflow of product, coding integrity/collaboration, database structure/architecture.

R&D Manager / SO Manager

VNG Corp. (who owns Zing and Zalo products)
sep. 2008 - okt. 2012 (4 år, 1 måned)
- Researched and developed Business applications: open-sources based (i.e. Wordpress, Drupal, Redmine, OpenERP, etc.) and Microsoft/.NET technologies (i.e. SharePoint, K2 Workflow, etc.) - Developed and manged IT office infrastructure (scope: 100+ servers, 2K+ users, 3 sites): Microsoft/Linux technologies and open-sources - ISO 27001 Project Leader

Utdanning

Computer Science and Engineering (CSE)

Vietnam 1999 - 2001
(2 år)

Kvalifikasjoner

MCSE | Security

Microsoft
2008
MCP ID: 3561306

CompTIA Linux+

CompTIA, Inc.
2008
CompTIA ID: COMP001007993579

CompTIA Security+

CompTIA, Inc.
2009
CompTIA ID: COMP001007993579

Kontakte Khanh T. angående jobben din

Logg inn for å diskutere eventuelle detaljer over chat.

Verifiseringer

Foretrukket frilanser
Identitet verifisert
Betalingsverifisert
Telefonverifisert
E-postadresse verifisert
Koblet til Facebook

Sertifiseringer

preferredfreelancer-1.png Preferred Freelancer Program SLA 1 97%
numeracy_1.png Basic Numeracy 1 94%
us_eng_1.png US English 1 93%
unix_1.png Unix 1 83%
python-1.png Python 1 80%

Toppferdigheter

Windows Server 80
Linux 70
Microsoft Exchange 59
Network Administration 58
Python 53

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