Ubuntu 20.04 LTS port listening / reachability issues

€8-10 EUR

Completed

Posted

about 2 years ago

€8-10 EUR

Paid on delivery

I'm having issues on my Linux (Ubuntu 20.04 LTS) server and need an experienced person to assist / find the issue. The server has some services running, which are open in the UFW and reachable from the public sources (example: mail-server is reachable and works with no issues). When installing for example Squid proxy, or running a listener on new custom port (with ncat for e.g.), the port cannot be reached, even if allowed in UFW (or even if UFW is disabled). When I for example stop currently running & reachable nginx (port 80, 443), and run squid on port 80, it works .. So, it seems that all NEW services which are listening on "new" ports, are not reachable. For unknown reasons..

Linux

Ubuntu

System Admin

Network Administration

Project ID: 33231947

About the project

8 proposals

Remote project

Active 2 yrs ago

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Awarded to:

@mferraroni

Hello, from what you experience seems that you have additional rules on iptables which are not managed by ufw, this is a really easy and quick fix, I am ready to fix it now if you will select my bid. Regards, Matteo Ferraroni

€10 EUR in 1 day

5.0

(4 reviews)

2.8

8 freelancers are bidding on average €24 EUR for this job

@udayarpandey2022

Greetings! I think I can help you with this firewall issue. Thank you!

€25 EUR in 7 days

5.0

(452 reviews)

7.1

@herradi

Hello I am an expert in building and managing systems and networks (Linux and Windows), you can count on me in building and managing your projects distinctively and professionally. I have more than 7 years of experience in IT: ==>> Servers linux: Ubuntu / Centos/ Debian / RHEL / Kali linux / Wifislax). ==>> Microsoft windows server :2016.2013.2008.2003. ==>> Cloud Computing Platforms: AWS Amazon Web Services / Microsoft AZURE I did project work in Okta and Microsoft Azure I am available All week and efficient, count on me to do the job well as it should. I have a high-speed internet connection, I own computer hp i5. I will be happy to communicate with you and work with you. I speak English and francais. Cordially.

€30 EUR in 1 day

4.9

(36 reviews)

4.7

@linuxpro2008

Worked with all kind of servers and all panels since 2007 And currently working as linux system administrator If you need to start as soon as possible contact me And tell me more details about what you want to Tell the time and cost accurately, please contact me now, looking forward to work with you Best regards

€10 EUR in 7 days

4.8

(10 reviews)

4.7

@mariobergotto

Hi there. I'm Mario, sysadmin with 25 years experience. My focus is mainly on infrastructure (OS, IP connectivity, databases, virtualization, storage, etc), and I've worked quite a lot with problems like the one you have posted. I'm available for chat and anydesk/teamviewer if you'd like me to help you sort this out. Have a nice evening.

€15 EUR in 7 days

5.0

(9 reviews)

3.7

@Ismaileng

Hello, Bonjour I'm a network and security engineer, Certified CCNA R&S, CCNP Enterprise Core, NSE4 (Fortigate), F5-CA(101-201) And PCNSE (Paloalto). i know what is the issue on your server, please feel free to contact me. Thanks

€80 EUR in 7 days