vps_-_centos
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vps_-_centos [2021/04/02 08:43] – [Installing software] hc9 | vps_-_centos [2021/04/02 18:14] (current) – [Software Management] hc9 | ||
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Change the next line in / | Change the next line in / | ||
- | | + | <file config / |
+ | HOSTNAME=my.host.name | ||
+ | </ | ||
Change hostname (FQDN and alias) in /etc/hosts so it reads like this: | Change hostname (FQDN and alias) in /etc/hosts so it reads like this: | ||
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Edit / | Edit / | ||
- | <file config /etc/ssh/sshd> | + | <file config /etc/ssh/sshd_config> |
# | # | ||
</ | </ | ||
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To: | To: | ||
- | <file config /etc/ssh/sshd> | + | <file config /etc/ssh/sshd_config> |
PermitRootLogin no | PermitRootLogin no | ||
</ | </ | ||
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===== Security ===== | ===== Security ===== | ||
- | In CentOS SELinux is enabled by default, SDF's CentOS VPS has SELinux configured to run in permissive mode, so it will log any security problem but won't enforce any policy. If you are not familiar with SELinux I suggest you to leave it this way, you can learn more about SLinux in CentOS in the [[#reference|Deployment Guide]] | + | In CentOS SELinux is enabled by default, SDF's CentOS VPS has SELinux configured to run in permissive mode, so it will log any security problem but won't enforce any policy. If you are not familiar with SELinux I suggest you to leave it this way, you can learn more about SLinux in CentOS in the [[: |
CentOS 7 uses firewalld, you can learn more about configuring firewalld [[https:// | CentOS 7 uses firewalld, you can learn more about configuring firewalld [[https:// | ||
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You can configure this repositoires in / | You can configure this repositoires in / | ||
- | | + | <file config / |
+ | exclude=kernel-PAE* kernel-debug* kernel-devel* kernel-doc* kernel-xen* | ||
+ | </ | ||
CentOS is aimed to be 100% binary compatible with RHEL, so it is very enterprise oriented and the best advise is to stick with pre-built packages. | CentOS is aimed to be 100% binary compatible with RHEL, so it is very enterprise oriented and the best advise is to stick with pre-built packages. | ||
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==== 3rd party repos ==== | ==== 3rd party repos ==== | ||
- | Most needs could do it well with repositoires shiped by default CentOS, but there are other options like the CentOS Plus repository, shiped but disabled by default, since this repo contains items that actually upgrade certain base CentOS components. This repo will change CentOS so that it is not exactly like the upstream provider' | + | Most needs could do it well with repositoires shiped by default CentOS, but there are other options like the CentOS Plus repository, shiped but disabled by default, since this repo contains items that actually upgrade certain base CentOS components. This repo will change CentOS so that it is not exactly like the upstream provider' |
contrib is also a disabled default in CentOS. This repository contains packages contributed by CentOS users which do not overlap with any of the core distribution packages. These packages have not been tested by the CentOS developers and may not track the upstream version releases very closely. | contrib is also a disabled default in CentOS. This repository contains packages contributed by CentOS users which do not overlap with any of the core distribution packages. These packages have not been tested by the CentOS developers and may not track the upstream version releases very closely. | ||
- | To enable repositories temporarily, | + | To enable repositories temporarily, |
- | yum --enablerepo=centosplus --enablerepo=contrib search postfix | + | |
Other popular repos are RPMForge, this repository provides over 4000 packages for CentOS. Read the instructions on [[http:// | Other popular repos are RPMForge, this repository provides over 4000 packages for CentOS. Read the instructions on [[http:// | ||
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- | $Id: VPS_Centos.html, | + | $Id: VPS_Centos.html, |
vps_-_centos.1617353023.txt.gz · Last modified: 2021/04/02 08:43 by hc9