Redhat Administration Jobs

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Hourly - Intermediate ($$) - Est. Time: Less than 1 week, Less than 10 hrs/week - Posted
AVAILABLE HARDWARE 3 physical servers (node1-osd, node2-osd, node3-Ceph-client) , model HOST-32H https://www.ovh.ie/dedicated_servers/details-servers-range-HOST-id-2016-HOST-32H.xml -2x 2 TB SATA3 + 2 x480GB SSD (no hardware raid) -10Gbps private network OVH vrack - 1Cloud OVH VPS https://www.ovh.ie/vps/vps-cloud.xml as monitor( for the moment OVH doesn’t support private networking between dedicated and cloud VPS. So, even is incorrect, for testing purposes, the ceph-monitor will be KVM on top of node2) NODE CONFIGURATION sda, sdb - 2X 480GB SSD, CentOS 7 sda1/sdb1 raid1 16G swap sda2/sdb2 raid1 1G /boot sda3/sdb3 raid1 300G / ( needed for libvirt OpenShift KVM’s) sda4/sdb4 noraid, no filesystem, OSD ( optimal size to be established) sda5/sdb5 noraid, no filesystem, journal disk ( optimal size to be established) sdc, sdd 2X2 TB SATA3 no raid, no partition, direct OSD ( separate cluster, for performance reasons, don’t want to mix ssd with sata) NOT INCLUDED IN THIS JOB -Openshift nodes will be setup later as KVM’s ( on top of node2/3). For testing purposes, in this job we shall setup ceph client with docker installation on KVM1 and also on node3-ceph-client, bare metal. -Additional nodes will be added later. After more than 5 -10 node, we consider switching to OpenStack, settings up OpenShift on top of it. So, for the moment, we exclude OpenStack, for maintenance burden and performance penalty. by including another layer. JOB DESCRIPTION -Validate current startup architecture. Details: http://docs.ceph.com/docs/master/start/quick-rbd/ recommends “You may use a virtual machine for your ceph-client node, but do not execute the following procedures on the same physical node as your Ceph Storage Cluster nodes (unless you use a VM).” In this respect, I can’t setup Openshift nodes directly on bare metal ( needs KVM on top of node2/node3) , because Kubernetes persistent volume rbd client could conflict with ceph server libraries. After architecture validation, I shall do myself the basic setup of the servers and http://docs.ceph.com/docs/master/start/quick-start-preflight/ -Setup ceph clusters - Test high availability ( shutdown node1... Afterwards, OSD node2, ceph-mon KVM on node2 and node3-ceph-client should continue serving the testing web app) -Performance analysis of the OVH setup OHV built-in OS installer, with custom kernel, performs network transfer with 589.9MB/s, but doesn’t have KVM, Ceph included. Centos 7 installation from USB iso performs network transfer only with 294.9MB/s Our workaround was to use OVH default installer and then to replace their custom kernel with Centos7 stock kernel, obtaining speeds of 589.9MB/s. It would be nice to identify the OVH installer optimization tricks. -Benchmark web application (vanilla drupal install) ( setup block devices for web files on SATA drives, and mysql on SSD drives) -Performance tuning & benchmark ceph tools - Workflow via Skype share screen with voice ( chat only is excluded) , root access with screen -rx ,with static ip firewall. Thank you!
Skills: Red Hat Administration CentOS Ceph Linux System Administration
Hourly - Expert ($$$) - Est. Time: More than 6 months, Less than 10 hrs/week - Posted
1st, a Word about us: We are Anoox.com - a not-for-profit Social Networking based Search engine. We have close to 2-Million members so we generate lots of emails on Daily basis to inform members based on their interest level. More about us here: https://www.anoox.com/what_anoox_is.php We are looking for a really expert Linux Security Admin to help us with Administering our servers. BUT To start with, and this is VERY IMPORTANT: we have a specific task that we need you take care off. This task is to find and address, according to Spamhaus: "a spam sending trojan, malicious link or some other form of botnet" that our server is supposedly infected with according to Spamhaus. This is our main server with ip: 64.34.161.246 A key Term of this Job is that its payment will be a Hybrid of Fixed and Hourly. With the Payment for this 1st Job being made only after Spamhaus confirms that this so called "spam sending trojan, malicious link or some other form of botnet", does not exist on our server anymore, which confirmation can take them a few days to make. So payment for this Job will be at your Hourly rate with a maximum of $250.00, but with bonuses if you work the Job quickly. With the bonuses being as such: 1- If work is finished in 2 Hours or less, then your Hourly rate + bonus of $75 2- If work is finished in 3 Hours or less, then your Hourly rate + bonus of $50 3- If work is finished in 4 Hours or less, then your Hourly rate + bonus of $25 And again with the Max fee upon Spamhaus verifying problem is fixed of $250.00 Example: your Hourly rate is $35 and you finish this work in 3 Hours. Then for this we will pay you your Hourly rate total of $35 * 3 plus bonus of $50 = total of $155 We have this Hybrid payment system for this 1st Job, because we have had so called Linux Admins contacts us before whom actually did not know what they were doing and wasted our time for Hours probing through our Server. We want to avoid such wasting of our time and yours. So that is why we are making the payment for this 1st Job to be based on successful result and speed of getting the Job done so that then we can see about your expertise for future Jobs. So if you do a great Job doing this 1st Task, we will then have you as our long term out-sourced Linux Admin, where we will pay you on Hourly basis. Bottom line: by doing this 1st Job successfully, and quick, you will tell us how good you really are as a Linux Admin, which will then result in us choosing you as our regular GoTo Linux Admin for future issues. Other BASIC requirements for this Job that you MUST meet are: 1- Your English read & write skills are good, 2- You have a good Headset and good Internet connection, since we will be meeting via Skype via Voice to get work done. 3- You have a working (paid version) of TeamViewer, since you will be accessing our server via TeamViewer via Putty on my desktop Details about our setup: 1- Our services are hosted on multiple Dedicated servers running LAMP. With the Linux being RedHat Enterprise on our main server, which according to Spamhaus is infected with the spam sending Trojan, etc. 2- We do not run plesk, or cpanel but manage our server via Putty. 3- Our email server is Qmail on main server. Please only contact us, if you meet the above Terms and the above BASIC Requirements for communication. Thank you. Dean Ansari Director: Anoox.com
Skills: Red Hat Administration Antispam and Antivirus Email Deliverability Firewall
Fixed-Price - Entry Level ($) - Est. Budget: $100 - Posted
Hi We are looking for a part time Linux server administrator. The ideal person will work with our team on on-going basis and help us manage, maintain our linux servers and managing the web servers You should have working experience with the following: - Advanced MySQL, Apache, Ngix, FastCGI configurations in Linux - Installation of LInux and its associated libraries and LAMP stack software in fresh linux install - Expert knowledge of different Web Hosting panels - Optimise servers when needed - Identify and suggest the right architecture/structure for any project with effective security permissions If you have any questions, please feel free to contact. Regards, NCPL Inc
Skills: Red Hat Administration LAMP Administration Linux System Administration MySQL Administration