assuming you’ve set it up already
Clean-up the configuration file
mv -i /etc/apt/sources.list /etc/apt/sources.list.dist
grep -vE '^#|^$' /etc/apt/sources.list.dist > /etc/apt/sources.list
find about your nearest mirror
wget -qO - mirrors.ubuntu.com/mirrors.txt mirror=...
and point the repositories against it e.g.
guest=jammy cat > /etc/apt/sources.list <<EOF deb $mirror $guest main restricted universe multiverse deb $mirror $guest-updates main restricted universe multiverse deb $mirror $guest-backports main restricted universe multiverse deb http://security.ubuntu.com/ubuntu $guest-security main restricted universe multiverse EOF
for debian it would rather look like this.
deb $mirror $guest main contrib non-free deb $mirror $guest-updates main contrib non-free deb $mirror $guest-backports main contrib non-free deb http://security.debian.org/debian-security $guest-security main contrib non-free
and for devuan (I am a bit tired of tracking down their release names)
deb http://pkgmaster.devuan.org/merged stable main contrib non-free deb http://pkgmaster.devuan.org/merged stable-updates main contrib non-free deb http://pkgmaster.devuan.org/merged stable-backports main contrib non-free deb http://pkgmaster.devuan.org/merged stable-security main contrib non-free # stable-proposed-updates
Alternatively, you can build your own configuration with some helper
And in case you have an HTTP PROXY on your network for that purpose
nmap -p 3142 x.x.x.x
vi /etc/apt/apt.conf.d/02proxy
Acquire::http { Proxy "http://x.x.x.x:3142"; };
apt update
Check for major release uprgade
do-release-upgrade
Proceed with patches
cat /etc/apt/apt.conf.d/02proxy apt update apt full-upgrade
and see Ubuntu Server Operations for further maintenance
Install a few more packages.
export DEBIAN_FRONTEND=noninteractive
vi /etc/apt/apt.conf.d/50disable-pipeline
Acquire::http::Pipeline-Depth 0;
Bare-metal
apt install \
ethtool \
hwinfo \
screen \
sudo
#xfsprogs \
#xfsdump \
Server system
openssh-server \
openssh-client \
and even more for any kind of system incl. some container that you need to troubleshoot
apt install \
apt-utils locales tzdata \
apt-transport-https \
bash-completion \
biff \
bzip2 \
colordiff \
curl \
dialog \
dma \
dnsutils \
dos2unix \
elvis-tiny \
git \
htop \
iftop \
ifupdown \
iputils-ping \
iotop \
ksh \
less \
lftp \
lsb-release \
lynx \
man-db \
manpages \
mlocate \
mtr \
net-tools \
netcat \
ngrep \
nmap \
ntpdate \
procps \
pwgen \
software-properties-common \
sysstat \
telnet \
traceroute \
unzip \
uuid \
uuid-runtime \
wget \
whois \
xxd
apt purge iputils-tracepath
and in case this is really a workstation
apt install vim-nox # nvi
define some defaults
update-alternatives --config vi
update-alternatives --config editor
git config pull.rebase false # merge (the default strategy)
moar packages
# ifupdown2 \
# inetutils-ping \
# mc \
# tcptraceroute
# ntp ntpstat
note iputils-ping is preferred (PTR-capable)
list packages from specific repo e.g. for mongodb
grep ^Package /var/lib/apt/lists/repo.mongodb.org_apt_ubuntu_dists_xenial_mongodb-org_3.4_* | cut -f3 -d: | uniq
How to select the fastest apt mirror on Ubuntu Linux https://linuxconfig.org/how-to-select-the-fastest-apt-mirror-on-ubuntu-linux
https://askubuntu.com/questions/8560/how-do-i-find-out-which-repository-a-package-comes-from
https://serverfault.com/questions/252333/list-all-packages-from-a-repository-in-ubuntu-debian
https://askubuntu.com/questions/786334/proxy-problems-after-upgrade-to-ubuntu-16-04-apt-1-2