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I joined Beyond mid-career and
working in the System Solutions Department.
I have LPIC-3 304 and AWS SAA certifications.

"Naka" blog article

[Dovecot] How to solve "Maximum number of connections from user+IP exceeded" [Error countermeasure]

Hello everyone. I'm Naka, a member of the System Solutions Department, who tends to skip lunch in order to enjoy eating out in the evening. Email...

  • Infrastructure related
  • Osaka office
4 votes, average: 1.00 / 14
1,134
inside
2024.10.03

[Ansible 2.12] Playbook to use yum on EOL CentOS 6

Hello everyone. He is a member of the System Solutions Department and wants to improve work efficiency with Ansible. Previously...

  • Infrastructure related
  • Osaka office
3 votes, average: 1.00 / 13
771
inside
2024.09.02

[Ansible] Solution for "(libselinux-python) aren't installed!" for CentOS 6 Playbook

Hello everyone. He is a member of the System Solutions Department and has a sudden urge to eat tsukemen and pasta. Manually pipe...

  • Infrastructure related
  • Osaka office
4 votes, average: 1.00 / 14
703
inside
2024.08.02

Enable yum to be used on EOL CentOS 6 [Repository change]

Hello everyone. As for the network line, he hopes that 1Gbps or more will be the default, System Solutions Department...

  • Infrastructure related
  • Osaka office
4 votes, average: 1.00 / 14
7,966
inside
2024.07.02

[Ansible 2.12] Build an Ansible execution environment for CentOS 6 using Docker in WSL2

Hello everyone. Recently, he was attacked by stomach pain and chills that made him unable to sleep, and he lost his physical strength...

  • Infrastructure related
  • Osaka office
3 votes, average: 1.00 / 13
787
inside
2024.06.14

[Linux] How to use the more command, unexpected uses [File concatenation]

Hello everyone. I work in the System Solutions Department, and people tend to have a lot of trouble deciding whether to buy new or used home appliances. Well...

  • Infrastructure related
  • Osaka office
7 votes, average: 1.00 / 17
10,413
inside
2024.05.27

[Business trip report] Infrastructure engineer to Shikoku office (Miyoshi City, Tokushima Prefecture)

Hello everyone. "Highly functional products (high price)" or "value for money"... I always worry about the system when buying a product...

  • public relations
  • Shikoku Office
  • others
11 votes, average: 1.00 / 111
626
inside
2024.02.16

[nginx] Explaining how to view, settings, location, etc. of access logs

Hello everyone. I am a member of the System Solutions Department and spend my days getting sleepy when I don't want to, and having trouble sleeping when I want to. ...

  • Infrastructure related
  • Osaka office
8 votes, average: 1.00 / 18
35,000
inside
2024.02.01

RHEL (Red Hat) source code suspension of public release

Hello everyone. A member of the System Solutions Department continues to wish for the emergence of an invention that can provide long-lasting sleep effects in a short amount of time...

  • Infrastructure related
5 votes, average: 1.00 / 15
1,347
inside
2023.12.01

[.pem/.crt] Why are the extensions of certificates and private keys different?

Hello everyone. I work in the System Solutions Department and sleep about 12 hours on my days off. For short sleepers...

  • Osaka office
10 votes, average: 1.00 / 110
14,000
inside
2023.04.11

How to check certificate integrity and verification results with openssl command/option explanation

Hello everyone. I work in the System Solutions Department, where waking up in the morning is as painful as the end of the world. This time...

  • Osaka office
13 votes, average: 1.00 / 113
24,354
inside
2023.03.17

[Linux] "ll" is not a command

Hello everyone. I belong to the System Solutions Department, and even on a hot day, I can't feel at ease without a futon on my stomach. infrastructure...

  • Osaka office
22 votes, average: 1.00 / 122
51,506
inside
2022.12.01