The person who wrote this article

About the author

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Beyond as a mid-career hire and
am currently in the Systems Solutions Department.
I hold LPIC-3 304 and AWS SAA certifications.

Naka's blog post

[Dovecot] "Maximum number of connections from user+IP exceeded" solution [Error countermeasures]

Hello everyone. I'm Naka, a member of the System Solutions Department. I tend to skip lunch so I can enjoy eating out at night. Email...

  • Infrastructure
  • Osaka Office
4 votes, average: 1.00 / 14
1,536
inside
2024.10.03

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

Hello everyone. I'm Naka, a member of the System Solutions Department, and I want to improve my work efficiency with Ansible. Previously...

  • Infrastructure
  • Osaka Office
3 votes, average: 1.00 / 13
846
inside
2024.09.02

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

Hello everyone. I'm Naka, a member of the System Solutions Department, and I have a sudden craving for tsukemen and pasta. I'm a...

  • Infrastructure
  • Osaka Office
4 votes, average: 1.00 / 14
795
inside
2024.08.02

How to use yum on EOL CentOS 6 [Repository change]

Hello everyone. I'm a member of the System Solutions Department, and I hope that network speeds of 1Gbps or higher will become the default.

  • Infrastructure
  • Osaka Office
4 votes, average: 1.00 / 14
8,633
inside
2024.07.02

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

Hello everyone. I'm Naka, a member of the System Solutions Department. I've recently been hit by stomach pains and chills that have kept me from sleeping, and I've lost all my strength...

  • Infrastructure
  • Osaka Office
3 votes, average: 1.00 / 13
875
inside
2024.06.14

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

Hello everyone. I work in the System Solutions Department and I often have trouble deciding whether to buy new or used home appliances. Now...

  • Infrastructure
  • Osaka Office
8 votes, average: 1.00 / 18
11,434
inside
2024.05.27

[Business Trip Report] Infrastructure Engineer Visits Shikoku Office (Miyoshi City, Tokushima Prefecture)

Hello everyone. When buying a product, I always have a hard time deciding whether to buy something with high functionality (and a high price) or something with good value for money...

  • public relations
  • Shikoku Office
  • others
11 votes, average: 1.00 / 111
683
inside
2024.02.16

[nginx] Explaining how to view, configure, and locate access logs

Hello everyone. I work in the System Solutions Department and I spend my days feeling sleepy when I don't want to sleep and unable to sleep when I do.

  • Infrastructure
  • Osaka Office
9 votes, average: 1.00 / 19
36,937
inside
2024.02.01

RHEL (Red Hat) source code public release suspension controversy

Hello everyone. I'm a member of the System Solutions Department, and I've been hoping for an invention that will help people get a long-lasting sleep in a short amount of time.

  • Infrastructure
6 votes, average: 1.00 / 16
1,434
inside
2023.12.01

[.pem/.crt] Why are certificate and private key extensions sometimes different?

Hello everyone. I'm Naka, a member of the System Solutions Department, and I sleep about 12 hours on my days off. I'm a short sleeper...

  • Osaka Office
10 votes, average: 1.00 / 110
15,526
inside
2023.04.11

How to check certificate integrity and verification results with the openssl command and options

Hello everyone. I work in the System Solutions Department, and waking up in the morning feels like the end of the world. This time, I'd like to talk about the following...

  • Osaka Office
13 votes, average: 1.00 / 113
25,693
inside
2023.03.17

[Linux] "ll" is not a command

Hello everyone. I'm Naka, a member of the System Solutions Department. I can't feel at ease without a blanket under my lap, even on a hot day. I'm in the Infrastructure...

  • Osaka Office
24 votes, average: 1.00 / 124
53,056
inside
2022.12.01