mariadb-secure-installation is a script often recommended to make sure the database is secured after install. Thanks to gentoo's pkg_config(), this script isn't strictly required, but it'd be nice to have for completeness. The manual page seems to be installed.
$ emerge --info mariadb Portage 3.0.41 (python 3.10.9-final-0, default/linux/amd64/17.1/no-multilib/prefix/kernel-3.2+, gcc-11, glibc-2.36-r5, 5.15.77 x86_64) ================================================================= System Settings ================================================================= System uname: Linux-5.15.77-x86_64-AMD_Ryzen_5_PRO_2500U_w-_Radeon_Vega_Mobile_Gfx-with-glibc2.36 KiB Mem: 23462692 total, 4642812 free KiB Swap: 8388604 total, 7985632 free Timestamp of repository gentoo: Mon, 19 Dec 2022 00:00:01 +0000 Head commit of repository gentoo: 5bb25476e42682d3d04ed11b212f6980d036c2f0 sh bash 5.1_p16-r2 ld GNU ld (Gentoo 2.38 p4) 2.38 app-misc/pax-utils: 1.3.5::gentoo app-shells/bash: 5.1_p16-r2::gentoo dev-lang/perl: 5.36.0-r1::gentoo dev-lang/python: 3.10.9::gentoo, 3.11.1::gentoo dev-util/cmake: 3.24.3::gentoo dev-util/meson: 0.63.3::gentoo sys-apps/baselayout: 2.9::gentoo sys-apps/sandbox: 2.29::gentoo sys-devel/autoconf: 2.71-r5::gentoo sys-devel/automake: 1.16.5::gentoo sys-devel/binutils: 2.38-r2::gentoo sys-devel/binutils-config: 5.4.1::gentoo sys-devel/gcc: 11.3.1_p20221209::gentoo sys-devel/gcc-config: 2.8::gentoo sys-devel/libtool: 2.4.7::gentoo sys-devel/make: 4.3::gentoo sys-kernel/linux-headers: 5.15-r3::gentoo (virtual/os-headers) sys-libs/glibc: 2.36-r5::gentoo Repositories: gentoo location: /home/mid-kid/.gentoo-mobile/var/db/repos/gentoo sync-type: rsync sync-uri: rsync://rsync.gentoo.org/gentoo-portage priority: -1000 sync-rsync-verify-metamanifest: no sync-rsync-verify-jobs: 1 sync-rsync-extra-opts: sync-rsync-verify-max-age: 24 ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="@FREE" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -pipe -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /home/mid-kid/.gentoo-mobile/etc /usr/share/gnupg/qualified.txt" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/gconf /etc/gentoo-release /etc/sandbox.d /etc/terminfo /home/mid-kid/.gentoo-mobile/etc/env.d" CONFIG_SHELL="/home/mid-kid/.gentoo-mobile/bin/bash" CXXFLAGS="-O2 -pipe -O2 -pipe" DISTDIR="/home/mid-kid/.gentoo-mobile/var/cache/distfiles" EMERGE_DEFAULT_OPTS="--ask --nospinner --quiet-unmerge-warn" ENV_UNSET="CARGO_HOME DBUS_SESSION_BUS_ADDRESS DISPLAY GOBIN GOPATH PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR XDG_STATE_HOME" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs binpkg-multi-instance buildpkg-live config-protect-if-modified distlocks ebuild-locks fixlafiles force-prefix ipc-sandbox merge-sync multilib-strict network-sandbox parallel-fetch pid-sandbox preserve-libs protect-owned qa-unresolved-soname-deps sfperms strict unknown-features-warn unmerge-logs unmerge-orphans unprivileged" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="/usr/portage/distfiles http://distfiles.gentoo.org" INSTALL_MASK="/etc/env.d/99host" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEFLAGS="-j8" MAKEOPTS="-j5" PKGDIR="/home/mid-kid/.gentoo-mobile/var/cache/binpkgs" PORTAGE_CONFIGROOT="/home/mid-kid/.gentoo-mobile/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --exclude=/.git" PORTAGE_TMPDIR="/home/mid-kid/.gentoo-mobile/var/tmp" SHELL="/home/mid-kid/.gentoo-mobile/bin/zsh" USE="acl amd64 bzip2 cli crypt dri fortran gdbm iconv ipv6 libglvnd libtirpc ncurses nls nptl openmp pcre prefix readline seccomp split-usr ssl test-rust unicode zlib" ABI_X86="64" ADA_TARGET="gnat_2021" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="karbon sheets words" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="mmx mmxext sse sse2" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock greis isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="libinput" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php7-4 php8-0" POSTGRES_TARGETS="postgres12 postgres13" PYTHON_SINGLE_TARGET="python3_10" PYTHON_TARGETS="python3_10" RUBY_TARGETS="ruby27" USERLAND="GNU" VIDEO_CARDS="amdgpu fbdev intel nouveau radeon radeonsi vesa dummy v4l" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq proto steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: ADDR2LINE, AR, ARFLAGS, AS, ASFLAGS, CC, CCLD, CPP, CPPFLAGS, CTARGET, CXX, CXXFILT, ELFEDIT, EXTRA_ECONF, F77FLAGS, FC, GCOV, GPROF, LANG, LC_ALL, LD, LEX, LFLAGS, LIBTOOL, LINGUAS, MAKE, NM, OBJCOPY, OBJDUMP, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, RANLIB, READELF, RUSTFLAGS, SIZE, STRINGS, STRIP, YACC, YFLAGS ================================================================= Package Settings ================================================================= dev-db/mariadb-10.6.10::gentoo was built with the following: USE="backup perl (prefix) server -bindist -columnstore -cracklib -debug -extraengine -galera -innodb-lz4 -innodb-lzo -innodb-snappy -jdbc -jemalloc -kerberos -latin1 (-mroonga) -numa -odbc -oqgraph (-pam) -profiling -rocksdb -s3 (-selinux) -sphinx -sst-mariabackup -sst-rsync -static (-systemd) -systemtap -tcmalloc -test -xml -yassl" CFLAGS="-O2 -pipe -O2 -pipe -fno-strict-aliasing" CXXFLAGS="-O2 -pipe -O2 -pipe -felide-constructors -fno-strict-aliasing" FEATURES="force-prefix ebuild-locks unprivileged sfperms multilib-strict ipc-sandbox merge-sync assume-digests fixlafiles strict pid-sandbox unknown-features-warn qa-unresolved-soname-deps protect-owned binpkg-logs unmerge-logs parallel-fetch distlocks binpkg-docompress buildpkg-live binpkg-multi-instance binpkg-dostrip config-protect-if-modified preserve-libs network-sandbox unmerge-orphans"
