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EFI build of GRUB2 now contains several security-oriented modules
 
The *GRUB EFI* build in Fedora 31 contains the `cryptodisk`, `luks` and `verify` *GRUB* modules. For more details see the xref:sysadmin/Distribution.adoc#grub-modules[Distribution-wide changes] section.
 
Existing system-wide crypto policies can now be customized
 
The `crypto-policies` package has been enhanced and allows users to modify the existing system-wide crypto policy levels by removing or adding enabled algorithms and protocols.
 
For example, it is now possible to easily modify the existing `DEFAULT` policy to disable the `SHA1` support or enable support for a national crypto algorithm that is supported by the crypto libraries but is disabled in the policies.
 
To achieve the above-mentioned outcome, add a simple configuration file and execute the `update-crypto-policies` command.
 
SSH no longer allows root password login
 
The OpenSSH server no longer allows the `root` user to remotely log into Fedora using a password. This change is consistent with the upstream OpenSSH project, which disabled the remote `root` password login in the 7.0 release. Previously, the remote `root` password login was a common target of attacks.
 
The `root` user can still remotely log in using a public SSH key.
 
The `/etc/ssh/sshd_config` configuration file now disables the `PermitRootLogin` option. If you upgrade to Fedora 31 on a system where you have made changes to the configuration file, the upgrade process preserves your configuration and creates the new configuration in `/etc/ssh/sshd_config.rpmnew`.
 
If you use the remote `root` password login in Kickstart or `cloud-init` scripts, Fedora recommends the following alternatives:
 
Switch to public key authentication.
 
Create a different administrative user.
 
You can re-enable `root` password login:
 
In the Fedora installer (*Anaconda*), enable the _Allow root SSH login with password_ option when setting a password for `root`.
 

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  1. fedora-docs-l10n/fedora-release-notes
  2. f31/pages/sysadmin/Security
  3. Ukrainian
Security
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4 years ago
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  1. fedora-docs-l10n/fedora-release-notes
  2. f31/pages/sysadmin/Security
  3. Ukrainian
Security
Безпека
4 years ago
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  1. fedora-docs-l10n/fedora-release-notes
  2. f31/pages/sysadmin/Security
  3. Ukrainian
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  2. f31/pages/sysadmin/Security
  3. Ukrainian
Security
Безпека
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Source string description
type: Title =
Flags
no-wrap
Source string location
pages/sysadmin/Security.adoc:5
String age
4 years ago
Last updated
11 months ago
Source string age
4 years ago
Translation file
po/uk/f31/pages/sysadmin/Security.po, string 1