init
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condor
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#!/bin/bash
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# Author: yeho <lj2007331 AT gmail.com>
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# BLOG: https://linuxeye.com
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#
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# Notes: OneinStack for CentOS/RedHat 7+ Debian 9+ and Ubuntu 16+
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#
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# Project home page:
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# https://oneinstack.com
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# https://github.com/oneinstack/oneinstack
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# Custom profile
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cat > /etc/profile.d/oneinstack.sh << EOF
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HISTSIZE=10000
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HISTTIMEFORMAT="%F %T \$(whoami) "
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alias l='ls -AFhlt --color=auto'
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alias lh='l | head'
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alias ll='ls -l --color=auto'
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alias ls='ls --color=auto'
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alias vi=vim
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GREP_OPTIONS="--color=auto"
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alias grep='grep --color'
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alias egrep='egrep --color'
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alias fgrep='fgrep --color'
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EOF
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sed -i 's@^"syntax on@syntax on@' /etc/vim/vimrc
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# PS1
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[ -z "$(grep ^PS1 ~/.bashrc)" ] && echo "PS1='\${debian_chroot:+(\$debian_chroot)}\\[\\e[1;32m\\]\\u@\\h\\[\\033[00m\\]:\\[\\033[01;34m\\]\\w\\[\\033[00m\\]\\$ '" >> ~/.bashrc
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# history
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[ -z "$(grep history-timestamp ~/.bashrc)" ] && echo "PROMPT_COMMAND='{ msg=\$(history 1 | { read x y; echo \$y; });user=\$(whoami); echo \$(date \"+%Y-%m-%d %H:%M:%S\"):\$user:\`pwd\`/:\$msg ---- \$(who am i); } >> /tmp/\`hostname\`.\`whoami\`.history-timestamp'" >> ~/.bashrc
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# /etc/security/limits.conf
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[ -e /etc/security/limits.d/*nproc.conf ] && rename nproc.conf nproc.conf_bk /etc/security/limits.d/*nproc.conf
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[ -z "$(grep 'session required pam_limits.so' /etc/pam.d/common-session)" ] && echo "session required pam_limits.so" >> /etc/pam.d/common-session
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sed -i '/^# End of file/,$d' /etc/security/limits.conf
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cat >> /etc/security/limits.conf <<EOF
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# End of file
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* soft nproc 1000000
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* hard nproc 1000000
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* soft nofile 1000000
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* hard nofile 1000000
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root soft nproc 1000000
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root hard nproc 1000000
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root soft nofile 1000000
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root hard nofile 1000000
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EOF
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# /etc/hosts
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[ "$(hostname -i | awk '{print $1}')" != "127.0.0.1" ] && sed -i "s@127.0.0.1.*localhost@&\n127.0.0.1 $(hostname)@g" /etc/hosts
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# Set timezone
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rm -rf /etc/localtime
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ln -s /usr/share/zoneinfo/${timezone} /etc/localtime
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# Set DNS
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#cat > /etc/resolv.conf << EOF
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#nameserver 114.114.114.114
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#nameserver 8.8.8.8
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#EOF
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# /etc/sysctl.conf
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[ -z "$(grep 'fs.file-max' /etc/sysctl.conf)" ] && cat >> /etc/sysctl.conf << EOF
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fs.file-max = 1000000
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fs.inotify.max_user_instances = 8192
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net.ipv4.tcp_syncookies = 1
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net.ipv4.tcp_fin_timeout = 30
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net.ipv4.tcp_tw_reuse = 1
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net.ipv4.ip_local_port_range = 1024 65000
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net.ipv4.tcp_max_syn_backlog = 16384
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net.ipv4.tcp_max_tw_buckets = 6000
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net.ipv4.route.gc_timeout = 100
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net.ipv4.tcp_syn_retries = 1
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net.ipv4.tcp_synack_retries = 1
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net.core.somaxconn = 32768
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net.core.netdev_max_backlog = 32768
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net.ipv4.tcp_timestamps = 0
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net.ipv4.tcp_max_orphans = 32768
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EOF
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sysctl -p
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sed -i 's@^ACTIVE_CONSOLES.*@ACTIVE_CONSOLES="/dev/tty[1-2]"@' /etc/default/console-setup
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locale-gen en_US.UTF-8
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[ -d "/var/lib/locales/supported.d" ] && echo "en_US.UTF-8 UTF-8" > /var/lib/locales/supported.d/local
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cat > /etc/default/locale << EOF
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LANG=en_US.UTF-8
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LANGUAGE=en_US:en
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EOF
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# iptables
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if [ "${iptables_flag}" == 'y' ]; then
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echo "${CMSG}Installing iptables firewall tooling...${CEND}"
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apt-get -y install debconf-utils
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echo iptables-persistent iptables-persistent/autosave_v4 boolean true | debconf-set-selections
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echo iptables-persistent iptables-persistent/autosave_v6 boolean true | debconf-set-selections
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apt-get -y install iptables-persistent
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if [ -e "/etc/iptables/rules.v4" ] && [ -n "$(grep '^:INPUT DROP' /etc/iptables/rules.v4)" -a -n "$(grep 'NEW -m tcp --dport 22 -j ACCEPT' /etc/iptables/rules.v4)" -a -n "$(grep 'NEW -m tcp --dport 80 -j ACCEPT' /etc/iptables/rules.v4)" ]; then
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IPTABLES_STATUS=yes
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else
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IPTABLES_STATUS=no
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fi
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if [ "${IPTABLES_STATUS}" == "no" ]; then
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cat > /etc/iptables/rules.v4 << EOF
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# Firewall configuration written by system-config-securitylevel
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# Manual customization of this file is not recommended.
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*filter
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:INPUT DROP [0:0]
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:FORWARD ACCEPT [0:0]
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:OUTPUT ACCEPT [0:0]
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:syn-flood - [0:0]
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-A INPUT -i lo -j ACCEPT
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-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
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-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
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-A INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT
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-A INPUT -p tcp -m state --state NEW -m tcp --dport 443 -j ACCEPT
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-A INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT
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COMMIT
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EOF
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fi
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FW_PORT_FLAG=$(grep -ow "dport ${ssh_port}" /etc/iptables/rules.v4)
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[ -z "${FW_PORT_FLAG}" -a "${ssh_port}" != "22" ] && sed -i "s@dport 22 -j ACCEPT@&\n-A INPUT -p tcp -m state --state NEW -m tcp --dport ${ssh_port} -j ACCEPT@" /etc/iptables/rules.v4
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iptables-restore < /etc/iptables/rules.v4
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/bin/cp /etc/iptables/rules.v{4,6}
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sed -i 's@icmp@icmpv6@g' /etc/iptables/rules.v6
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ip6tables-restore < /etc/iptables/rules.v6
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ip6tables-save > /etc/iptables/rules.v6
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fi
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service rsyslog restart
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service ssh restart
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. /etc/profile
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. ~/.bashrc
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