## Troubleshooting ### Redirecting HTTP requests to HTTPS in Nexus Repository 2 [Redirecting HTTP requests to HTTPS in Nexus Repository 2](https://support.sonatype.com/hc/en-us/articles/360037845633-Redirecting-HTTP-requests-to-HTTPS-in-Nexus-Repository-2) ### Repository: Proxy repository to secure.central.sonatype.com site is auto-blocked [Repository: Proxy repository to secure.central.sonatype.com site is auto-blocked](https://support.sonatype.com/hc/en-us/articles/360007931554-Repository-Proxy-repository-to-secure-central-sonatype-com-site-is-auto-blocked) ### Reset and Compact NuGet package database [Reset and Compact NuGet package database](https://support.sonatype.com/hc/en-us/articles/360000722207-Reset-and-Compact-NuGet-package-database) ### What do the Nexus Repository 2 status messages mean? [What do the Nexus Repository 2 status messages mean?](https://support.sonatype.com/hc/en-us/articles/115004799587-What-do-the-Nexus-Repository-2-status-messages-mean) ### Why does Nexus download npm packages from sites other than the configured remote URL? [Why does Nexus download npm packages from sites other than the configured remote URL?](https://support.sonatype.com/hc/en-us/articles/223134868-Why-does-Nexus-download-npm-packages-from-sites-other-than-the-configured-remote-URL) ### Ivy deploy fails intermittently with "java.io.IOException: Error writing to server" [Ivy deploy fails intermittently with "java.io.IOException: Error writing to server"](https://support.sonatype.com/hc/en-us/articles/218101688-Ivy-deploy-fails-intermittently-with-java-io-IOException-Error-writing-to-server) ### Nexus Repository 2.12.0-01 RubyGems plugin rollup patch [Nexus Repository 2.12.0-01 RubyGems plugin rollup patch](https://support.sonatype.com/hc/en-us/articles/216185198-Nexus-Repository-2-12-0-01-RubyGems-plugin-rollup-patch) ### Repository: Why do I see folders in a group repository when folder has been removed from underlying repository? [Repository: Why do I see folders in a group repository when folder has been removed from underlying repository?](https://support.sonatype.com/hc/en-us/articles/215550328-Repository-Why-do-I-see-folders-in-a-group-repository-when-folder-has-been-removed-from-underlying-repository) ### Why does "nuget.exe push" to Nexus Repository 2 ask for login credentials? [Why does "nuget.exe push" to Nexus Repository 2 ask for login credentials?](https://support.sonatype.com/hc/en-us/articles/213465068-Why-does-nuget-exe-push-to-Nexus-Repository-2-ask-for-login-credentials) ### Problem: Users can't browse contents of closed staging repositories (Nexus Repository 2) [Problem: Users can't browse contents of closed staging repositories (Nexus Repository 2)](https://support.sonatype.com/hc/en-us/articles/213465058-Problem-Users-can-t-browse-contents-of-closed-staging-repositories-Nexus-Repository-2) ### Repository: Every time Nexus is restarted, it asks for the license to be installed. [Repository: Every time Nexus is restarted, it asks for the license to be installed.](https://support.sonatype.com/hc/en-us/articles/213465018-Repository-Every-time-Nexus-is-restarted-it-asks-for-the-license-to-be-installed) ### Nexus Repository 2.11.2-03 Repository Checksum Bug [Nexus Repository 2.11.2-03 Repository Checksum Bug](https://support.sonatype.com/hc/en-us/articles/213465008-Nexus-Repository-2-11-2-03-Repository-Checksum-Bug) ### Why don't all versions of an RPM show up in group repositories? (Repository Manager 2) [Why don't all versions of an RPM show up in group repositories? (Repository Manager 2)](https://support.sonatype.com/hc/en-us/articles/213464958-Why-don-t-all-versions-of-an-RPM-show-up-in-group-repositories-Repository-Manager-2) ### How to trust the SSL certificate issued by the HTTP proxy server in Nexus Repository 2 [How to trust the SSL certificate issued by the HTTP proxy server in Nexus Repository 2](https://support.sonatype.com/hc/en-us/articles/213464948-How-to-trust-the-SSL-certificate-issued-by-the-HTTP-proxy-server-in-Nexus-Repository-2) ### How to reduce the disk space used by System Feeds and increase performance [How to reduce the disk space used by System Feeds and increase performance](https://support.sonatype.com/hc/en-us/articles/213465108-How-to-reduce-the-disk-space-used-by-System-Feeds-and-increase-performance) ### Maven is unable to connect to Nexus Repository 2 after configuring to use SSL. [Maven is unable to connect to Nexus Repository 2 after configuring to use SSL.](https://support.sonatype.com/hc/en-us/articles/213465088-Maven-is-unable-to-connect-to-Nexus-Repository-2-after-configuring-to-use-SSL) ### How do I enable WWW-Authenticate headers for content 401 responses [How do I enable WWW-Authenticate headers for content 401 responses](https://support.sonatype.com/hc/en-us/articles/213465078-How-do-I-enable-WWW-Authenticate-headers-for-content-401-responses) ### Fix https repository blocking by PKIX path building failed [Fix https repository blocking by PKIX path building failed](https://support.sonatype.com/hc/en-us/articles/213465038-Fix-https-repository-blocking-by-PKIX-path-building-failed) ### Understanding "The target server failed to respond" in Nexus Repository 2 logs [Understanding "The target server failed to respond" in Nexus Repository 2 logs](https://support.sonatype.com/hc/en-us/articles/213465028-Understanding-The-target-server-failed-to-respond-in-Nexus-Repository-2-logs) ### How to disable the System Feeds (nexus-timeline-plugin) feature to improve Nexus Repository 2 performance [How to disable the System Feeds (nexus-timeline-plugin) feature to improve Nexus Repository 2 performance](https://support.sonatype.com/hc/en-us/articles/213464998-How-to-disable-the-System-Feeds-nexus-timeline-plugin-feature-to-improve-Nexus-Repository-2-performance) ### Nexus Repository 2 does not start with log message "Could not upgrade capabilities.xml to Kazuki" [Nexus Repository 2 does not start with log message "Could not upgrade capabilities.xml to Kazuki"](https://support.sonatype.com/hc/en-us/articles/213464928-Nexus-Repository-2-does-not-start-with-log-message-Could-not-upgrade-capabilities-xml-to-Kazuki) ### NativeFSLock which is held by another indexer component [NativeFSLock which is held by another indexer component](https://support.sonatype.com/hc/en-us/articles/213464918-NativeFSLock-which-is-held-by-another-indexer-component) ### Nexus Repository 2 Remote Health Check Analysis fails with SSL errors [Nexus Repository 2 Remote Health Check Analysis fails with SSL errors](https://support.sonatype.com/hc/en-us/articles/213464898-Nexus-Repository-2-Remote-Health-Check-Analysis-fails-with-SSL-errors) ### A proxy repository is not working, status says "Remote Automatically Blocked and Unavailable" [A proxy repository is not working, status says "Remote Automatically Blocked and Unavailable"](https://support.sonatype.com/hc/en-us/articles/213464888-A-proxy-repository-is-not-working-status-says-Remote-Automatically-Blocked-and-Unavailable) ### Nexus Repository 2 startup fails with "Could not lock User prefs. Couldn't flush user prefs: Couldn't get file lock." [Nexus Repository 2 startup fails with "Could not lock User prefs. Couldn't flush user prefs: Couldn't get file lock."](https://support.sonatype.com/hc/en-us/articles/213464868-Nexus-Repository-2-startup-fails-with-Could-not-lock-User-prefs-Couldn-t-flush-user-prefs-Couldn-t-get-file-lock) ### Configuring XStream Whitelist [Configuring XStream Whitelist](https://support.sonatype.com/hc/en-us/articles/213464858-Configuring-XStream-Whitelist) ### Authenticated Access to Nexus from Yum Doesn't Work (Nexus Repository 2) [Authenticated Access to Nexus from Yum Doesn't Work (Nexus Repository 2)](https://support.sonatype.com/hc/en-us/articles/213464848-Authenticated-Access-to-Nexus-from-Yum-Doesn-t-Work-Nexus-Repository-2) ### Nexus Repository 2 does not list all available LDAP groups in external role mapping dialog [Nexus Repository 2 does not list all available LDAP groups in external role mapping dialog](https://support.sonatype.com/hc/en-us/articles/213464838-Nexus-Repository-2-does-not-list-all-available-LDAP-groups-in-external-role-mapping-dialog) ### Generate a detailed permission trace for any Nexus Repository 2 user [Generate a detailed permission trace for any Nexus Repository 2 user](https://support.sonatype.com/hc/en-us/articles/213464808-Generate-a-detailed-permission-trace-for-any-Nexus-Repository-2-user) ### Alternative methods to install your Nexus Repository 2 license [Alternative methods to install your Nexus Repository 2 license](https://support.sonatype.com/hc/en-us/articles/213464818-Alternative-methods-to-install-your-Nexus-Repository-2-license)