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Network and email server security

A specialist in computer network security is required in CentOS 7 operating systems, to configure an email server (Postfix) in order to prevent reporting of the unwanted email list, and to try to optimize the security and speed of the network.

Example: Remove the botnet reported in the following url with the IP [login to view URL]:

[login to view URL]

Our network is in Medellin, Colombia. There are about 6 server with CentOS 7.
All traffic pass over Microtik router.
The problem is that we don't know what is the inffected server.
Mail server is Postfix/Dovecot. We need to install TLS certificate too.
The purpose of the project is when we send a email from our server don't arrive to junk mail.
No control panel, all server administration is via bash.

Beceriler: Bilgisayar Güvenliği, Linux, Ağ Yönetimi, Sistem Yöneticisi

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İşveren Hakkında:
( 0 değerlendirme ) Colombia

Proje NO: #17170210

Bu iş için 22 freelancer ortalamada $144 teklif veriyor

cjconstante

Hi there! I am a system administrator security focused with 5+ years of experience configuring and securing servers. I can deploy your mail server with the proper security settings to avoid spam and mail headaches in t Daha Fazla

in %bids___i_period_sub_35% gün içinde230%project_currencyDetails_sign_sub_37% %project_currencyDetails_code_sub_38%
(35 Değerlendirme)
8.1
kuldeepvk

Hi, I will configure postfix on server for mailing and implement authentications like spf,dkim,dmarc,etc. for good inbox delivery. Thank you

in %bids___i_period_sub_35% gün içinde77%project_currencyDetails_sign_sub_37% %project_currencyDetails_code_sub_38%
(179 Değerlendirme)
6.5
tanujchugh

Hi, I will setup email security on server as per your requirement, will disable open relay and implement security for email server and firewall. Thanks

in %bids___i_period_sub_35% gün içinde155%project_currencyDetails_sign_sub_37% %project_currencyDetails_code_sub_38%
(135 Değerlendirme)
6.1
himayatkhan

Hi, I have read your project description and would like to offer my services. I am a certified network consultant having nine years of experience in network and system administration. I am proficient working with su Daha Fazla

in %bids___i_period_sub_35% gün içinde155%project_currencyDetails_sign_sub_37% %project_currencyDetails_code_sub_38%
(47 Değerlendirme)
6.1
vipinharidas

Hi, server expert here. I can help you in setting up the email server. Please find my previous project reviews in the following freelancer profile link: https://www.freelancer.com/u/vipinharidas.html . Will complete t Daha Fazla

in %bids___i_period_sub_35% gün içinde83%project_currencyDetails_sign_sub_37% %project_currencyDetails_code_sub_38%
(76 Değerlendirme)
5.4
ITSecurityPro

Hi there, I am IT Security professional with more than 4 years of hands on experience. I can fix and secure your email server. lets discuss to start. Thank you. Best Regards

in %bids___i_period_sub_35% gün içinde177%project_currencyDetails_sign_sub_37% %project_currencyDetails_code_sub_38%
(28 Değerlendirme)
5.2
infihost

Hi, We will migrate the mail server from windows server to centos server without any data loss. We will also optimize the server. Thank you.

1 gün içinde %bids___i_sum_sub_32%%project_currencyDetails_sign_sub_33% USD
(41 Değerlendirme)
4.7
lorenguer

C7 #!{guru root} is a technology company with 12 years of experience, specializing in computer networks and systems. Founded in Buenos Aires between the design district and technological GuruRoot from members of a rese Daha Fazla

in %bids___i_period_sub_35% gün içinde222%project_currencyDetails_sign_sub_37% %project_currencyDetails_code_sub_38%
(3 Değerlendirme)
4.1
Hostingshades

Hello, I have a team of linux server admins and developers having experience of more than 5 years. I can do this project for you as I have done similar projects several times. Let's come over chat-box for further info Daha Fazla

1 gün içinde %bids___i_sum_sub_32%%project_currencyDetails_sign_sub_33% USD
(37 Değerlendirme)
4.2
1 gün içinde %bids___i_sum_sub_32%%project_currencyDetails_sign_sub_33% USD
(10 Değerlendirme)
3.7
atikullx

Hire me. I'm an Email & DNS Server, SMTP, Spam Control, Postfix, Exim, PowerMTA, Interspire, MailWizz, Email Marketing Expert, Web Designer, Linux System Admin, AWS & Google Cloud Expert, Web Security Analyst & Websit Daha Fazla

1 gün içinde %bids___i_sum_sub_32%%project_currencyDetails_sign_sub_33% USD
(16 Değerlendirme)
3.2
Angle14

Hello, I'll install postfix and will implement all server Security techniques. I have more than 3 years experience in the same. Thanks

1 gün içinde %bids___i_sum_sub_32%%project_currencyDetails_sign_sub_33% USD
(2 Değerlendirme)
2.4
VinitPunjabi

Hi, Good Morning. I am Introduce myself about my skills and work procedure for IT Related Works. I have to process manner is a Corresponding with client , Timely Deliver , Focus on Client Requirement, Find the Root Daha Fazla

in %bids___i_period_sub_35% gün içinde155%project_currencyDetails_sign_sub_37% %project_currencyDetails_code_sub_38%
(5 Değerlendirme)
2.1
ITExpert03

Hello, I can help you . I am a Security expert with 10 years of Professional experience. I am Certified Cisco Engineer with 10 Years of working Experience with Google Inc , T-Mobile USA and Fedex Corp . Certifica Daha Fazla

in %bids___i_period_sub_35% gün içinde222%project_currencyDetails_sign_sub_37% %project_currencyDetails_code_sub_38%
(1 Yorum)
1.0
saseen18

working the gov sector where cent OS is used in gov office so no issue in solving your issue ill work on it within hours

1 gün içinde %bids___i_sum_sub_32%%project_currencyDetails_sign_sub_33% USD
(0 Değerlendirme)
0.0
avrsolution1980

we are a team of Network and Server Security, and we are very confident & expert in this field. we had worked on Linux, MAC and Windows Operating System and good experiance in security & speed optimization of email ser Daha Fazla

in %bids___i_period_sub_35% gün içinde166%project_currencyDetails_sign_sub_37% %project_currencyDetails_code_sub_38%
(0 Değerlendirme)
0.0
veerendrakushwah

At this time im working in datainfosys ltd. this company provide mail service(xgen plus). so i know very well how to create mail server and its security...

in %bids___i_period_sub_35% gün içinde111%project_currencyDetails_sign_sub_37% %project_currencyDetails_code_sub_38%
(0 Değerlendirme)
0.0
tresociety

we have already done this work, if you want to see the result you can try a demo link: [login to view URL] Email: demo at [login to view URL] Password: prova0987

in %bids___i_period_sub_35% gün içinde40%project_currencyDetails_sign_sub_37% %project_currencyDetails_code_sub_38%
(0 Değerlendirme)
0.0
mysoulkavi500

Hello, As per your requirement. I will be perfect and suitable for this project. I have more than 6 years experience in Network administration, CCNA, ISP, ASP.NET and the .NET Framework using C#, HTML, JavaScript, Daha Fazla

in %bids___i_period_sub_35% gün içinde155%project_currencyDetails_sign_sub_37% %project_currencyDetails_code_sub_38%
(0 Değerlendirme)
0.0
amitac824

I can do

in %bids___i_period_sub_35% gün içinde155%project_currencyDetails_sign_sub_37% %project_currencyDetails_code_sub_38%
(0 Değerlendirme)
0.0