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--- docs:tips_n_tricks:debian:index.html [16.02.2020 21:49 CET] – [Change timezone] peter
+++ docs:tips_n_tricks:debian:index.html [23.09.2023 01:48 CEST] (current) – [Building Packages] peter
@@ Line 57: / Line 57: @@
 See:
   * https://wiki.debian.org/AptConfiguration#apt_preferences_.28APT_pinning.29
+==== Manage Repositories GPG Keys ====
+[[https://askubuntu.com/a/1307181|You need to know why apt-key add is deprecated]]
 ===== Change timezone =====
 To change the timezone of a running systems, issue
@@ Line 62: / Line 66: @@
   tzconfig
-or((for newer versions of Debian))
+or((for later versions of Debian))
   dpkg-reconfigure tzdata
@@ Line 88: / Line 92: @@
   update-locale LANG=C LC_CTYPE=de_DE LANGUAGE
+{{tag>locale}}
+{{entry>locale}}
 ===== Building Packages =====
@@ Line 98: / Line 103: @@
   export DEBEMAIL="${DEBEMAIL:-peter@foo.bar}"
   export DEBFULLNAME="${DEBFULLNAME:-Peter Foobar}"
-  dch -l .ul~lenny -D lenny
+  dch -l .ul~ulyana -D ulyana
-  dpkg-buildpackage -rfakeroot
+  dpkg-buildpackage -rfakeroot --no-sign
+===== Make Monday the first day of week in US locales =====
+This works e.g. for the [[https://docs.xfce.org/xfce/xfce4-panel/clock|Clock xfce4-panal applet]].
+Do as //root//:
+  mkdir -vp /usr/local/share/i18n/locales/
+  sed -e 's/^week.*$/&\nfirst_weekday\t2/g' /usr/share/i18n/locales/en_US  > /usr/local/share/i18n/locales/en_US
+  locale-gen
+<note>
+GOSH! :-o\\
+Yeah - it's as easy as that. The tricky part is to what to do 8-)
+</note>
+__References:__
+  * [[https://www.reddit.com/user/mozycan/|mozycan]]'s [[https://www.reddit.com/r/xfce/comments/baq8xg/comment/ekdiob5|answer to "Can I make panel's calendar week start on Monday instead of Sunday?"]] on Reddit
+  * ''less /usr/sbin/locale-gen''
+Also quite interesting while not directly related to //my// solution:
+  * [[https://unix.stackexchange.com/users/5462/0xc0000022l|0xC0000022L]]'s [[https://unix.stackexchange.com/a/204329|answer to "Change a locale definition (as opposed to a locale setting)"]] on Stackexchange.
+{{tag>locale Xfce}}
+{{entry>locale}}
+{{entry>Xfce}}
+===== Disabling systemd-resolved =====
+//This was actually tried with success on a //Linux Mint 20 Ulyana//, but I assume it works pretty much the same on //Debian// and all its derivatives//
+The most easy way would be to uninstall //systemd-resolved//, but as it is bundled with //systemd// which unfortunately is a crucial part of //Debian// meanwhile, this ist not possible.
+<code bash>
+apt install resolveconf
+systemctl disable systemd-resolved
+vi /etc/NetworkManager/conf.d/10-dns-resolved.conf
+</code>
+We need to override ''/usr/lib/NetworkManager/conf.d/10-dns-resolved.conf'', therefore the file name does not really match its purpose((Actually, you should adapt the name, if the respective file in ''/usr/lib/NetworkManager/conf.d/'' has a different name)):
+<code plain /etc/NetworkManager/conf.d/10-dns-resolved.conf>
+dns=default
+rc-manager=resolvconf
+systemd-resolved=false
+</code>
+Disabling //systemd-resolved// in //systemd// and in //NetworkManager// propably doesn't make much of a difference after your told //NetworkManager// not to route DNS queries to it but for saving system resources.
+References:
+  * ''man NetworkManager.conf''
+  * [[https://unix.stackexchange.com/a/580109|Stackexchange]]
+{{tag>systemd DNS}}
+{{entry>systemd}}
+{{entry>DNS}}
+======  ======
 {{tag>Linux Debian}}
 {{entry>Linux}}
 {{entry>Debian}}