Merge branch 'master' of https://dev.lugh.ch/git/oli/scripts
This commit is contained in:
commit
cc8122b00e
10 changed files with 64 additions and 223 deletions
18
README
18
README
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@ -1,18 +0,0 @@
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What's that all about?
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----------------------
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This is a part of my scripts which might be useful to others. Scripts marked with "FIXME" need cleanup to get useful.
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License: LGPL
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cleanup-chaos-files.sh Deletes unneeded files like .DS_Store (for example on a NAS)
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delicious_backup.sh Use delicious API to backup your bookmarks to an XML file
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find_big_files.sh (FIXME) Just finds files bigger than n MB and displays them
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helmet.sh (FIXME) Future Debian system security analyzer
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iptables.sh Basic iptables script
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libssl-restart-daemons.sh Shows daemons affected by an OpenSSL upgrade needing a restart
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lighttpd_restart_oom.sh A temporary workaround for lighttpd OOM events
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openssl-chk-crt.sh Recursively searches for OpenSSL certificates and shows validity
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policyd-550.sh Grep the mail.log for e-mails rejected by policyd-weight and score
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rblcheck.sh Check if your server is listed on an DNSBL
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tls_stats.sh If you own a mailserver sending e-mails via TLS, show stats of peers
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www-perms.sh Analyze your $documentroot for files writable by www user/group
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getiface.sh Shows which interface would be used to connect to a specific host/IP
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16
README.md
Normal file
16
README.md
Normal file
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@ -0,0 +1,16 @@
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What's that all about?
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----------------------
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This is a part of my scripts which might be useful to others. Scripts marked with "FIXME" need cleanup to get useful.
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License: LGPL
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* `cleanup-chaos-files.sh`: Deletes unneeded files like .DS_Store (for example on a NAS)
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* `delicious_backup.sh`: Use delicious API to backup your bookmarks to an XML file
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* `find_big_files.sh`: (FIXME) Just finds files bigger than n MB and displays them
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* `iptables.sh`: Basic iptables boilerplate
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* `libssl-restart-daemons.sh`: Shows daemons affected by an OpenSSL upgrade needing a restart
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* `openssl-chk-crt.sh`: Recursively searches for OpenSSL certificates and shows validity
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* `policyd-550.sh`: Grep the mail.log for e-mails rejected by policyd-weight and score
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* `rblcheck.sh`: Check if your server is listed on an DNSBL
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* `tls_stats.sh`: If you own a mailserver sending e-mails via TLS, show stats of peers
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* `www-perms.sh`: Analyze your $documentroot for files writable by www user/group
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* `getiface.sh`: Shows which interface would be used to connect to a specific host/IP
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@ -1,28 +0,0 @@
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#!/usr/bin/env bash
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#
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# Fetches all users and aliases from MySQL
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# For import in other backup MX config.
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#
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# Requires a .my.cnf with this content:
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# [client]
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# password=foo
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BACKUPMX_USER=/home/backupmx
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MAIL_ADDR=$(mysql -sN -u root mailserver -e "SELECT email
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FROM virtual_users
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UNION
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SELECT source
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FROM virtual_aliases;" | sort | uniq)
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FILE_SUFFIX=$(cat /etc/mailname)
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# Makes a list of all mail addresses (be it real or aliases)
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for i in $MAIL_ADDR; do
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echo -e "$i\tOK"
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done > $BACKUPMX_USER/relay_recipients_$FILE_SUFFIX
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# Generates list of all domains
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for i in $MAIL_ADDR; do
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echo $i | cut -d'@' -f2
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done | sort | uniq > $BACKUPMX_USER/domains_$FILE_SUFFIX
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scp -i /root/.ssh/linode $BACKUPMX_USER/*_$FILE_SUFFIX backupmx@mx.lugh.ch:
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0
foo
0
foo
19
git-repostate.py
Normal file
19
git-repostate.py
Normal file
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@ -0,0 +1,19 @@
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#!/usr/bin/env python3
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import os
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curr_pwd = os.getcwd()
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cont_dir = os.scandir(curr_pwd)
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with os.scandir(curr_pwd) as it:
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for entry in it:
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if not entry.name.startswith('.') and entry.is_dir():
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# check if directory contains a .git subdirectory
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with os.scandir(entry.name) as folder:
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#print(folder)
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for foobar in folder:
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print("debug: " + foobar.name)
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#print(entry.name)
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# chdir(path)
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121
helmet.sh
121
helmet.sh
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@ -1,121 +0,0 @@
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#!/usr/bin/env bash
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# Author: Oliver Ladner <oli@lugh.ch>
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# License: LGPL
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#
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# This tool scans a Debian-based system for threats in programs,
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# configurations, permissions etc. and calculates a score to
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# compare different systems.
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#
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# This script runs noninteractive, so you can rely on these return
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# codes:
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# 0 script run ok, nothing serious found
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# 1 OS detection failed/wrong distribution
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# 2 script run ok, critical stuff found
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#
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# Requirements:
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# -
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H_VERSION="0.0.1"
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showhelp() {
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cat << EOF
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Usage: $(basename $0) [OPTION]...
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-h|--help This information
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-m|--no-md5 Don't check MD5 sums of packages
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-s|--no-ssh No SSH-related checks
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-v|--verbose Be verbose
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-V|--version Show version
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--force-debian If OS detection fails, assume Debian
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--force-ubuntu If OS detection fails, assume Ubuntu
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EOF
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}
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# Argument handling
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while [ $# -gt 0 ]; do
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case $1 in
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-h|--help) showhelp; exit; shift 1 ;;
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-V|--version) echo $(basename $0) $H_VERSION; exit; shift 1 ;;
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-v|--verbose) verb=true; shift 1 ;;
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-m|--no-md5) md5=false; shift 1 ;;
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-s|--no-ssh) ssh=false; shift 1 ;;
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*) showhelp; exit ;;
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esac
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done
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DEBIANCODES=([3]=woody/sarge [4]=etch [5]=lenny [6]=squeeze [7]=wheezy)
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# Debian is missing lsb_release command
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if [[ $(which lsb_release) ]]; then
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H_DISTRO=$(lsb_release -s -i)
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H_RELEASE=$(lsb_release -s -r)
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H_CODE=$(lsb_release -s -c)
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# FIXME probably a strange check for Debian
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elif [[ $(grep -c '^[[:digit:]]' /etc/debian_version) > 0 ]]; then
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H_DISTRO=$(awk -F': ' '/Vendor:/ {print $2}' /etc/dpkg/origins/debian)
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H_RELEASE=$(cat /etc/debian_version)
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H_CODE=${DEBIANCODES[$(echo $H_RELEASE | cut -b1)]}
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else
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echo "Not a Debian-based distribution, please install the package lsb-release and send" .
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" the output of 'lsb_release -a' to info@lugh.ch."
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exit 1
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fi
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H_KERNEL=$(uname -r)
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H_ARCH=$(uname -m)
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msg() {
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if [[ "$verb" ]]; then
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echo $1
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fi
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}
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check_md5() {
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# http://kemovitra.blogspot.com/2010/07/checking-integrity-of-debianubuntu.html
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if [ $md5 ]; then
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echo "not run"
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else
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msg "Copying /var/lib/dpkg/info/*.md5sums to temporary file..."
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TEMPMD5=$(mktemp -t)
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cat /var/lib/dpkg/info/*.md5sums | sort > $TEMPMD5 && cd /
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msg "Running md5sum, searching for 'FAILED' files..."
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md5sum -c $TEMPMD5 2>&1 | grep ': FAILED' | awk -F':' {'print "/"$1'} && rm $TEMPMD5
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fi
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}
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check_ssh() {
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ssh_config_regex="/etc/ssh/ssh*conf*"
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if [ $ssh ]; then
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SSHD="not run"
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else
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msg "Searching files $ssh_config_regex for PermitRootLogin yes..."
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if [[ $(grep -i -c 'PermitRootLogin.*yes' $ssh_config_regex) > 0 ]]; then
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echo "Root login enabled!"
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else
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echo "root login disabled"
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fi
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fi
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}
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#check_dummy() {
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# echo "this is a dummy check"
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# msg "debug text of dummy_check..."
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#}
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#column -t -s':' -c 80 << EOF
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echo "Distribution: $H_DISTRO"
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echo "Release/Codename: $H_RELEASE ($H_CODE)"
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echo "Kernel/Architecture: $H_KERNEL ($H_ARCH)"
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echo -n "md5 check: "
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check_md5
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echo -n "SSH check: "
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check_ssh
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# /usr/bin/printf "\u00A9 2010 Oliver Ladner\n" #unicode ausgabe
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# Define default return code
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exit 0
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# vim: ts=3:sw=3
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@ -1,27 +0,0 @@
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#!/usr/bin/env bash
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# Author: Oliver Ladner <oli@lugh.ch>
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# License: LGPL
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#
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# Monitors if lighttpd uses too much mem, and if so, restarts it
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# 100MB
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MAXRAM=200000
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while true; do
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CHECK=$(ps auxww | grep 'lighttpd -f' | grep -v grep | awk '{print $6}')
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sleep 5
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if [ $CHECK -gt $MAXRAM ]; then
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logger "lighttpd OOM ($CHECK KB used)"
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/etc/init.d/lighttpd stop
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sleep 15
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/etc/init.d/lighttpd start
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sleep 5
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elif [ -z $CHECK ]; then
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logger "lighttpd not running, starting"
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/etc/init.d/lighttpd start
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sleep 15
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else
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logger "lighttpd normal ($CHECK KB used)"
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fi
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done
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@ -4,21 +4,20 @@
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listtype=$1
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if ! [[ "$listtype" =~ ^[4,6]+$ ]]; then
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echo "first parameter is mandatory and must be either 4 or 6."
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exit 1
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echo "first parameter is mandatory and must be either 4 or 6."
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exit 1
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fi
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rblfile="/var/lib/rbldns/listv$listtype"
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maxage=96 # in hours
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maxage=168 # in hours
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if [ $listtype -eq 4 ]; then
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egrep '^[[:digit:]]{1,3}\.[[:digit:]]{1,3}\.[[:digit:]]{1,3}\.[[:digit:]]{1,3}' $rblfile | while read -r ip delimiter timestamp foo; do
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if [ "$timestamp" -gt "0" ]; then
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expiration=$(echo "$(date +%s)-$timestamp" | bc)
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if [ "$expiration" -gt "$(($maxage * 3600))" ]; then
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#echo "DEBUG: entry $ip older than $maxage hours (expired $(($expiration / 3600)) hours ago)"
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sed -i "/^$ip.*# $timestamp.*$/d" $rblfile || echo "Error while deleting $ip: $?"
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fi
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if [ "$timestamp" -gt "0" ]; then
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expiration=$(echo "$(date +%s)-$timestamp" | bc)
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if [ "$expiration" -gt "$(($maxage * 3600))" ]; then
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#echo "DEBUG: entry $ip older than $maxage hours (expired $(($expiration / 3600)) hours ago)"
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sed -i "/^$ip.*# $timestamp.*$/d" $rblfile || echo "Error while deleting $ip: $?"
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fi
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fi
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done
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fi
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@ -27,3 +26,5 @@ fi
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if [ $listtype -eq 6 ]; then
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:
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fi
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# vim: tabstop=4 expandtab shiftwidth=4 softtabstop=4
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@ -14,12 +14,9 @@ fi
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rblfile="/var/lib/rbldns/listv$listtype"
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function dnsq {
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if [ $listtype == "4" ]; then
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echo "$(dig +short $1)"
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elif [ $listtype == "6" ]; then
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echo "$(dig +short AAAA $1)"
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else
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echo "unknown, fix it"
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if [ $listtype == "4" ]; then echo "$(dig +short $1)"
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elif [ $listtype == "6" ]; then echo "$(dig +short AAAA $1)"
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else echo "unknown, fix it"
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fi
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}
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@ -28,7 +25,6 @@ $(dnsq lugh.ch)
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$(dnsq ipv6.lugh.ch)
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$(dnsq oxi.ch)
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$(dnsq mail.zephry.ch)
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$(dnsq moni-und-oli.ch)
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)
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static_black=(
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$(dnsq www.uceprotect.net)
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@ -36,20 +32,13 @@ $(dnsq rsync-mirrors.uceprotect.net)
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$(dnsq www.backscatterer.org)
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$(dnsq unimatrix.admins.ws)
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)
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fail2ban_chains=(
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fail2ban-dovecot
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fail2ban-sasl
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fail2ban-ssh
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fail2ban-ssh-ddos
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fail2ban-tumgreyspf
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fail2ban-apache-digest
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)
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fail2ban_chains=$(/sbin/iptables -nL | grep ^f2b | awk {'print $1'})
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ban_ip=()
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# Get currently banned IPs from fail2ban chains
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iptables_banned=(
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$(for chain in ${fail2ban_chains[@]}; do
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/sbin/iptables -nL $chain | grep '^DROP' | awk {'print $4'} | grep -v '0.0.0.0/0'
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$(for chain in $fail2ban_chains; do
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/sbin/iptables -w 1 -nL "$chain" | grep '^REJECT' | awk {'print $4'} | grep -v '0.0.0.0/0'
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done | sort | uniq)
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)
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@ -71,7 +60,7 @@ cat << HEREDOC > $rblfile
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# Test entry http://www.ietf.org/rfc/rfc5782.txt
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$testentry
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:127.0.0.2:$ is listed because of misbehaviour. See http://lugh.ch/dnsbl.html for details
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:127.0.0.2:$ is listed because of misbehaviour. See https://lugh.ch/dnsbl.html for details
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# Whitelist
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$(printf "!%s # 0\n" "${static_white[@]}")
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@ -124,4 +113,9 @@ for timestamp in $(grep -e '^[0-9]' /var/www/virtsrv/lugh.ch/listv$listtype.txt
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done
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# Concatenate IPv4 and IPv6 lists together
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cat /var/www/virtsrv/lugh.ch/listv4.txt $(grep -e '^[0-9]' /var/www/virtsrv/lugh.ch/listv6.txt) > /var/www/virtsrv/lugh.ch/list.txt
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echo -e "IP\t\tDate listed\t\t\tCause\t\t\t\t\tCountry" > /var/www/virtsrv/lugh.ch/list.txt
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echo -e "--\t\t-----------\t\t\t-----\t\t\t\t\t-------" >> /var/www/virtsrv/lugh.ch/list.txt
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tail -n+3 /var/www/virtsrv/lugh.ch/listv4.txt >> /var/www/virtsrv/lugh.ch/list.txt
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tail -n+3 /var/www/virtsrv/lugh.ch/listv6.txt >> /var/www/virtsrv/lugh.ch/list.txt
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# vim: tabstop=4 expandtab shiftwidth=4 softtabstop=4
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|
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@ -1,3 +1,8 @@
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#!/usr/bin/env bash
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# Ban (purge) all on localhost
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# Varnish 4
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varnishadm -T localhost:6082 -S /etc/varnish/secret "ban req.http.host ~ $1"
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||||
# Varnish 5
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||||
varnishadm -T localhost:6082 -S /etc/varnish/secret ban req.http.host == $1
|
||||
|
|
|
|||
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