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Centos Server installation script

This a simple script to install a server and 4 virtual machines based on Centos 8.1. The script can be a series of instructions for me to execute.

Following are the features of the server:

1. Common aspects of linux VMs

a) All servers must be secure, no unidentified ports or protocols open. Capable of being exposed to the internet.

b) No unnecessary packages installed, minimal installation.

c) All servers and hypervisor are centos 8.1 based, 64 bit and are headless.

d) Packages to be installed

d.1. UFW – requires EPEL repo

d.2. JDK 13

d.3. Nginx

d.4. Postgresql 12.1

e) Syslog streamed out

f) No UDP ports opened except for DHCP

g) Internal bridge enables all nodes to receive inbound connections from the internet.

h) All nodes registered in dyn dns, Route 53 preferably, as subdomains – dev, test, prd, cicd

i) All nodes have TLS certs installed for HTTPS

j) All nodes have UFW to configure internal firewalls

2. Server install

2.1. 4 VMs on one server

a) 64 Gb RAM, 8 Core Processor, 1Tb PCIE 4.0 SSD

b) Centos 64 bit Hypervisor

c) All VMs are externally visible on the network, so a bridge/switch is needed in the host OS

d) All VMs will request through DHCP their own external IPs

2.2. PRD VM

a) 32 GB Ram

b) 4 Cores

c) 256 Gb drive

d) Depending upon the performance we can increase the Prd server capacity

e) Syslog streamed out to cicd

f) IPTables configured to permit the following:

i) 2 outgoing HTTPS ports, one for API and other for static content

ii) Incoming NTP Port open

iii) Outgoing syslog

iv) No outgoing ssh

v) SSH from Home VLAN only

vi) Sftp incoming from CI_CD only

2.3. Test VM

a) 8 GB Ram

b) 1 Cores

c) 128 Gb drive

d) FW configured to permit the following:

I. 2 outgoing HTTPS ports, one for API and other for static content

II. Incoming NTP Port open

III. Outgoing syslog

IV. No outgoing ssh

V. Sftp from CI_CD and Home VLAN only

VI. Sftp incoming from CI_CD only

2.4. Dev VM

a) 8 GB Ram

b) 1 Cores

c) 128 Gb drive

d) FW configured to permit the following:

I. SSH only from local IPs

II. 2 outgoing HTTPS ports, one for API and other for static content

III. Incoming NTP Port open

IV. No outgoing ssh

V. Sftp incoming from CI_CD only

2.5. CICD VM

a) Used for various administration, team services etc.

b) 8 GB Ram

c) 2 Cores

d) 256 Gb drive

e) Git, Jenkins

f) IPTables configured to permit the following:

I. SSH only from Home Vlan only

II. 2 outgoing HTTPS ports, one for API and other for static content

III. Incoming NTP Port open

IV. Outgoing 80 & 443

Beceriler: Linux, Sistem Yöneticisi

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İşveren Hakkında:
( 3 değerlendirme ) Mclean, United States

Proje NO: #23451637

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(0 Değerlendirme)
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Bu iş için 15 freelancer ortalamada $166 teklif veriyor

tanujchugh

Hi I will do the task of centos script and resolve the server issue as per your requirements and have expertise in the relevant field. I have 10 years of experience. Let me know for further queries. Regards

1 gün içinde %bids___i_sum_sub_32%%project_currencyDetails_sign_sub_33% USD
(307 Değerlendirme)
6.8
raj00565

Okay, I got it. I have read through the details, initiate the chat for a quick discussion and start. As 9+ years experienced DevOps engineer, I would like to be considered for this installation task. I am well experie Daha Fazla

$230 USD in 7 gün içinde
(43 Değerlendirme)
6.3
infihost

Hi, I will install and configure all the servers as per the requirement with CENTOS 7. I will configure VM on the server with all required packages on server. I do have more than 10 years of expertise in web hosting, Daha Fazla

1 gün içinde %bids___i_sum_sub_32%%project_currencyDetails_sign_sub_33% USD
(158 Değerlendirme)
6.0
Hostingshades

Hi, I can help you in your task. Please initiate a chat session so we can discuss more about it. Thank you.

1 gün içinde %bids___i_sum_sub_32%%project_currencyDetails_sign_sub_33% USD
(99 Değerlendirme)
5.5
PeterLi0529

Hi there. Thank you for your posting. I am familiar with writing automation scripts and deployment scripts. Be in touch. Regards.

1 gün içinde %bids___i_sum_sub_32%%project_currencyDetails_sign_sub_33% USD
(7 Değerlendirme)
5.2
ArleMedina

Hi Sir, I have demonstrable experience and knowledge on all technologies involved needed to configure your environment. I would like to help you

$250 USD in 10 gün içinde
(63 Değerlendirme)
5.4
android2014213

Dear Hiring Manager, I am Redhat Certified Engineer. I have 8 years of experience as a Linux System Administrator. I posses good knowledge of mail server like zimbra, sendmail, web server like Apache, shell scripting, Daha Fazla

$201 USD in 7 gün içinde
(18 Değerlendirme)
4.5
vilbiraju

Hello, I understood what you written in the project details, But what is the actual requirement, You need to set a server and VMs based on the requirement? Please discuss, I will support you anything related to linu Daha Fazla

$200 USD in 7 gün içinde
(13 Değerlendirme)
3.8
writiqueproject

I have extensive experience in the domains of Natural Language Processing, Image Recognition & Artificial Intelligence,Recommender Systems,Machine learning,Data Minning, NS3 simulation, Omnet++, Sumo simulation, Deep L Daha Fazla

$30 USD in 2 gün içinde
(1 Yorum)
2.8
initsky

Hi, I will setup the server with VMs and will configure the VMs as per need. I have more than 5 years of experience in Web Hosting and System admin. Services involved with: * Linux (Debian, Ubuntu, Red Hat Enterprise Daha Fazla

$140 USD in 3 gün içinde
(5 Değerlendirme)
2.3
eazonebd

Hello , Good Morning . I saw your project description carefully and understood . I will able to create a those following vm with requirments within 1 day +/- (might take less or might take more ) but not more than 2 d Daha Fazla

$200 USD in 2 gün içinde
(1 Yorum)
1.8
chomsengdev

How are you? I read your description. I am C++/C#/Java/Python programming Expert. I can finish your project quickly with best quality. I want to discuss more on chat. Thank you for your time.

$140 USD in 7 gün içinde
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rajat2695

i have 2 years of experience in linux administration, worked on various kind of application servers on newly install VM. i would feel great to work with you.

$166 USD in 3 gün içinde
(0 Değerlendirme)
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pratap470

I have read project details, As 5+ years experienced Linux Adminitsrator, I have been working for year on AWS Solutions Architect (LINUX | WINDOWS) for Freelance Consulting, as i am working for year i have very good kn Daha Fazla

$50 USD in 7 gün içinde
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