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Security 보안
Updated cryptography settings 최신화 된 암호화 설정
With this update, the default Fedora policy regarding cryptographic components has been updated to disallow the use of algorithms that are no longer considered secure. Specifically, the changes involve: 이 최신화를 통해, 암호화 구성 요소에 대한 기본 페도라 정책은 더 이상 안전하지 않은 알고리즘의 사용을 허용하지 않도록 최신화되었습니다. 특별히, 변경 사항은 다음을 포함합니다:
Require RSA of 2048 bits or more 2048 비트 또는 그 이상의 RSA가 필요합니다
Disable DSA DSA 비활성화
Libcurl switches from libssh2 to libssh Libcurl은 libssh2에서 libssh로 전환됩니다
With this update, the *libcurl* library switches from using *libssh2* to implement the SSH layer of SCP and SFTP protocols to *libssh*. The reason for the change is that the *libssh2* library uses outdated cryptographic algorithms and lacks important features, such as GSS-API authentication. The newly used *libssh* library is more secure, feature-complete, and with more active upstream community.
NSS uses SQL as default file format NSS는 기본 파일 형식으로 SQL을 사용합니다
In Fedora 28, the default file format used by the *NSS* library is changed to SQL. 페도라 28에서, *NSS* 라이브러리에 의해 사용되는 기본 파일 형식은 SQL로 변경됩니다.
The Network Security Services (NSS) library, which is used by Mozilla Firefox, Gnome Evolution, Mozilla Thunderbird, and other applications, changed its default database format for storing keys, certificates, and trust information. The new database format is based on SQlite and uses the filenames `cert9.db`, `key4.db`, and `pkcs11.txt`. The previous database format used Berkeyley DB (DBM) and filenames `cert8.db`, `key3.db`, and `secmod.db`.
The primary benefit of the SQlite storage is support for concurrent access by multiple applications. When using the previous default file format based on DBM, accidental concurrent access could result in corrupted storage.
Unless an application explicitly requests either the DBM or SQL format, the NSS library will automatically migrate the application's NSS database from the old to the new format. The old database files will not be updated further. Most users should not experience differences in operation. Applications that perform many NSS read/write operations may experience a minor performance decrease. Use the following command to trigger an explicit migration:
certutil -d sql:</path/to/database> -N -f </path/to/database/password/file> \
-@ </path/to/database/password/file>
certutil -d sql:</path/to/database> -N -f </path/to/database/password/file> \
-@ </path/to/database/password/file>
Users who store their system home or application data directory on a network filesystem are advised to set the `NSS_SDB_USE_CACHE=yes` environment variable prior to starting applications that use NSS. Without setting this environment variable, users of network filesystems may experience a major slowdown with some applications, such as Firefox. The environment variable enables the use of a caching strategy in NSS that works around the slowness of network filesystems. Because this caching strategy causes a performance decrease on fast filesystems.
Additional technical details can be found in the Fedora Wiki: link:https://fedoraproject.org/wiki/Changes/NSSDefaultFileFormatSql[]. 추가적인 기술 상세화는 페도라 위키에서 찾을 수 있습니다: link:https://fedoraproject.org/wiki/Changes/NSSDefaultFileFormatSql[Changes/NSSDefaultFileFormatSql].
Deprecate TCP wrappers TCP wrappers는 더 이상 사용하지 않습니다
Fedora 28 https://fedoraproject.org/wiki/Changes/Deprecate_TCP_wrappers[removes support] for `tcp_wrappers` (aka `/etc/hosts.deny` access files) by default from all the network daemons and tools. The preferred replacements are software firewalld, nftables rules or software specific access rules for more complex filtering. If your system security depends on `tcp_wrappers` rules, convert them to firewall rules, or set up `tcpd` to do the same job for you.
OpenLDAP switches from NSS to OpenSSL OpenLDAP는 NSS에서 OpenSSL로 전환됩니다
With this update, the OpenLDAP distribution in Fedora changed from using the *NSS* (or *MozNSS*) library to the *OpenSSL* library for providing cryptographic functions. The switch promises better support from OpenLDAP upstream, which had ceased maintaining the NSS support layer.
OpenLDAP defaults to use only Shared System Certificates OpenLDAP는 공유된 시스템 인증서만 사용하도록 설정됩니다