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Network Security Jobs

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Hourly - Expert ($$$) - Est. Time: Less than 1 week, Less than 10 hrs/week - Posted
I run two popular on-line digital download websites (soon expanding to 4) and a small company website. All my sites are hosted on a dedicated server with a reliable and fast network infrastructure behind them. Generally speaking all the sites are fast and customers aren't facing any problems, but I feel with the growing traffic, performance could be increased. My main site is custom built using PHP/MySQL with no existing framework, everything was coded in a secure and optimized fashion and is the back bone of my business. However, I am soon going to migrating everything across to a new WordPress based solution (which has more features and is better suited for our business) to match my other sites (already built on WordPress). I am looking for the following: - Someone who can find any bottle necks in site/server performance and help me solve them. - Someone who can FULLY optimize the dedicated server to perform best on all sites, be it optimizing PHP config, MySQL and other services. This might include rebuilding the server and installing only the best Apache/PHP modules, etc. - Someone who can install Engintron (a NGINX reverse-proxy) and verify everything works as intended. I had prior issues with it and had to uninstall. - Someone who can harden the server using WHM/cPanel/terminal and configure CSF and mod_security to mitigate as many attacks as possible. - Someone who is willing to spend an hour or two on a Skype call, giving some consultation/advice and answering any questions I have in relation to the server, set-up and optimization performed. - Site/server recommendations you feel would benefit us as a business and our expansion. - Knowledge of CloudFlare and server side caching. I have limited Linux sysadmin experience, but relatively good knowledge of WHM/cPanel and basic terminal/shell commands. If we establish a good working relationship, I believe this will be an on-going project where I will evoke your services every few months to help improve the server config.
Skills: Network Security Apache administration CentOS CPanel
Hourly - Entry Level ($) - Est. Time: More than 6 months, 10-30 hrs/week - Posted
We need a great all round System admin to join our crew. You should be super proficient with System Admin on CentOS and MySQL and be proactive and have a passion for keeping servers running tight and well. Duties would include: - Server Updates - Security checks and holes plugged - DNS admin - MySQL backups and optimization (Some DBs use Sphinx) - Setting up and maintining SSH accounts - Server optimisation of memory, disk space etc - Setting up and maintaining Vz partions on the servers We operate 5 Servers across 2 ISPs all CentOS. The candidate after trial would be offer a retainer (guaranteed min number of hours a week).
Skills: Network Security CentOS DNS Linux System Administration
Fixed-Price - Intermediate ($$) - Est. Budget: $300 - Posted
We are looking to move to an all Ubiquiti solution for our remote networks. As such we require an experienced freelancer who is familiar with EdgeOS (a fork of Vyatta) to set up an Ubiquiti EdgeRouter, with multiple VLANs, QOS and supply two configuration files. We are also looking for someone who might be able to suggest improvements to our network schema and is security conscious. Our network on a remote site must take PCI DSS compliance in mind. So each of our required VLANs must be segregated unless specific access between them is required for the operation. Our choice of router also gives us the ability to add on multiple DSL connections, where particular remote locations require the additional bandwidth to allow critical traffic to pass unrestricted. We have designed a network schema to isolate and organise the different hardware we manage across six VLANs each requiring different levels of QOS and access. For the DSL, each site has a minimum of two connections. One of these connections will either have a IPSEC VPN connection into our VPLS network or directly into our VPLS via PPPoE. Where sites have multiple DSL connections, these should all be used where network traffic does not need to go to into our internal network. As such we would require two configuration files one for each VPN or PPPoE connection.
Skills: Network Security Network Administration
Fixed-Price - Intermediate ($$) - Est. Budget: $30 - Posted
We are looking for a highly experience FreePBX expert to configure our already well installed and secured VOIP FreePBX system. The task that need doing are as follows: 1. Configure Trunks 2. configure 8 incoming DIDs from 3 providers 3. Configure outbound and incoming routes 4. Setup 3 IVR, 5 extensions each, 3 Queues and call forwarding This is an urgent requirement that need to be completed ASAP. Only apply if you are free and can start straight away. You must also be familiar with the following DID and Voip careers: Voxbeam, Flowroute, Dinumbers.com. Happy bidding.
Skills: Network Security Asterisk CentOS Elastix
Fixed-Price - Expert ($$$) - Est. Budget: $2,000 - Posted
Architect, Build and Configure our AWS network.... Requires full stack understanding to build our development network environment and our Scalable deployment network on AWS. Product to be deployed is mobile App and Web App. Network requires Dev Environment - Servers, Redis, MQ Chat, DB, Load Balancers Etc. Etc. We have initial specs at the ready. Please see attached Please ONLY EXPERTS reply!!!
Skills: Network Security Amazon EC2 Amazon Relational Database Service Amazon S3
Hourly - Entry Level ($) - Est. Time: Less than 1 week, 10-30 hrs/week - Posted
I am new to Kaseya and have yet had time to train on the product but have had to go live with a client and need to configure 24 machines for windows patching and other things. No direct access to system. Only remote access via teamviewer. Must be able to talk over skype or on the phone.
Skills: Network Security Computer Networking Network Administration Windows Administration
Fixed-Price - Expert ($$$) - Est. Budget: $1,000 - Posted
We need an expert in Network Design For ISP's...someone that can consult on the best way to work from product offering to subscribers to network...virtual or shared infrastructure approach is a must. We believe in MVI (Minimum Viable Infrastructure) In other words, only buy what we must. Leverage existing data centers and other service providers as much as possible.
Skills: Network Security Network Administration Network Design Network Planning
Hourly - Intermediate ($$) - Est. Time: Less than 1 week, Less than 10 hrs/week - Posted
I own a small SmartDNS service, and require a system / network admin in order to update the DNS zones for the streaming services I support that have since stopped working since the system was built. I also want to add some new services such as MLBtv, NFL stream pass, HBO Now, Showtime, Sling TV, Lifetime and BBC iPlayer. I will purchase subscriptions to these services that require them for testing. You should know how SmartDNS works, be familiar with SNIproxy, as well as understand what (and why) certain zones require NATs in order to work on consoles / devices. I can help test on devices, but if you already have devices of your own that will be an advantage. The devices my service supports are Mac / PC, Apple TV, FireTV, PS3 / PS4, Xbox 360 / Xbox One, iOS, Android and Roku. Only apply if you know what you're doing. This is a production environment and service, I can't have any nonsense or I will lose customers.
Skills: Network Security Computer Networking DNS Linux System Administration
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