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Code Issues Releases Wiki Activity

Update system information and check IPv6 address.

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This commit is contained in:
Teal Dulcet 2019-07-27 01:03:15 -07:00
parent 1f275b3c64
commit b53a10d085
3 changed files with 63 additions and 29 deletions
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74
setup/network-checks.sh
View File

@ -6,15 +6,15 @@ apt_get_quiet install bind9-host sed netcat-openbsd
# The user might have chosen a name that was previously in use by a spammer # The user might have chosen a name that was previously in use by a spammer
# and will not be able to reliably send mail. Do this after any automatic # and will not be able to reliably send mail. Do this after any automatic
# choices made above. # choices made above.
if host $PRIMARY_HOSTNAME.dbl.spamhaus.org > /dev/null; then if host "$PRIMARY_HOSTNAME.dbl.spamhaus.org" > /dev/null; then
echo echo >&2
echo "The hostname you chose '$PRIMARY_HOSTNAME' is listed in the" echo "The hostname you chose '$PRIMARY_HOSTNAME' is listed in the" >&2
echo "Spamhaus Domain Block List. See http://www.spamhaus.org/dbl/" echo "Spamhaus Domain Block List. See http://www.spamhaus.org/dbl/" >&2
echo "and http://www.spamhaus.org/query/domain/$PRIMARY_HOSTNAME." echo "and http://www.spamhaus.org/query/domain/$PRIMARY_HOSTNAME." >&2
echo echo >&2
echo "You will not be able to send mail using this domain name, so" echo "You will not be able to send mail using this domain name, so" >&2
echo "setup cannot continue." echo "setup cannot continue." >&2
echo echo >&2
exit 1 exit 1
fi fi
@ -22,22 +22,52 @@ fi
# The user might have ended up on an IP address that was previously in use # The user might have ended up on an IP address that was previously in use
# by a spammer, or the user may be deploying on a residential network. We # by a spammer, or the user may be deploying on a residential network. We
# will not be able to reliably send mail in these cases. # will not be able to reliably send mail in these cases.
REVERSED_IPV4=$(echo $PUBLIC_IP | sed "s/\([0-9]*\).\([0-9]*\).\([0-9]*\).\([0-9]*\)/\4.\3.\2.\1/") # Adapted from: https://github.com/tdulcet/Remote-Servers-Status/blob/master/status.sh
if host $REVERSED_IPV4.zen.spamhaus.org > /dev/null; then REVERSED_IPV4=$(echo "$PUBLIC_IP" | awk -F'.' '{for(i=NF;i>0;i--) printf "%s%s",$i,(i==1?"\n":".")}')
echo if host "$REVERSED_IPV4.zen.spamhaus.org" > /dev/null; then
echo "The IP address $PUBLIC_IP is listed in the Spamhaus Block List." output=$(dig +short txt "$REVERSED_IPV4.zen.spamhaus.org" 2>&1) && [[ -n "$output" ]] && mapfile -t reasons < <(echo "$output" | grep -v '^;')
echo "See http://www.spamhaus.org/query/ip/$PUBLIC_IP." echo >&2
echo echo "The IP address $PUBLIC_IP is listed in the Spamhaus Block List." >&2
echo "You will not be able to send mail using this machine, so setup" if [[ -n "$reasons" ]]; then
echo "cannot continue." echo "Reason: ${reasons[*]}" >&2
echo fi
echo "Associate a different IP address with this machine if possible." echo "See http://www.spamhaus.org/query/ip/$PUBLIC_IP." >&2
echo "Many residential network IP addresses are listed, so Mail-in-a-Box" echo >&2
echo "typically cannot be used on a residential Internet connection." echo "You will not be able to send mail using this machine, so setup" >&2
echo echo "cannot continue." >&2
echo >&2
echo "Associate a different IP address with this machine if possible." >&2
echo "Many residential network IP addresses are listed, so Mail-in-a-Box" >&2
echo "typically cannot be used on a residential Internet connection." >&2
echo >&2
exit 1 exit 1
fi fi
# Stop if the IPv6 address is listed in the ZEN Spamhouse Block List.
# Adapted from: https://github.com/tdulcet/Remote-Servers-Status/blob/master/status.sh
if [ -n "$PUBLIC_IPV6" ]; then
# Expand and reverse IPv6 address, adapted from: https://gist.github.com/lsowen/4447d916fd19cbb7fce4
REVERSED_IPV6=$(echo "$PUBLIC_IPV6" | awk -F: 'BEGIN{OFS="";}{addCount = 9 - NF; for(i=1;i<=NF;i++) {if(length($i) == 0) {for(j=1;j<=addCount;j++) {$i = ($i "0000");}} else{$i = substr(("0000" $i), length($i)+5-4);}}; print}' | awk -F '' 'BEGIN{OFS=".";}{for(i=NF;i>0;i--) printf "%s%s",$i,(i==1?"\n":".")}')
if host "$REVERSED_IPV6.zen.spamhaus.org" > /dev/null; then
output=$(dig +short txt "$REVERSED_IPV6.zen.spamhaus.org" 2>&1) && [[ -n "$output" ]] && mapfile -t reasons < <(echo "$output" | grep -v '^;')
echo >&2
echo "The IP address $PUBLIC_IPV6 is listed in the Spamhaus Block List." >&2
if [[ -n "$reasons" ]]; then
echo "Reason: ${reasons[*]}" >&2
fi
echo "See http://www.spamhaus.org/query/ip/$PUBLIC_IPV6." >&2
echo >&2
echo "You will not be able to send mail using this machine, so setup" >&2
echo "cannot continue." >&2
echo >&2
echo "Associate a different IP address with this machine if possible." >&2
echo "Many residential network IP addresses are listed, so Mail-in-a-Box" >&2
echo "typically cannot be used on a residential Internet connection." >&2
echo >&2
exit 1
fi
fi
# Stop if we cannot make an outbound connection on port 25. Many residential # Stop if we cannot make an outbound connection on port 25. Many residential
# networks block outbound port 25 to prevent their network from sending spam. # networks block outbound port 25 to prevent their network from sending spam.
# See if we can reach one of Google's MTAs with a 5-second timeout. # See if we can reach one of Google's MTAs with a 5-second timeout.

3
setup/preflight.sh
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@ -25,7 +25,8 @@ if ! echo "$ID" | grep -iq "ubuntu" || ! echo "$VERSION_ID" | grep -iq "18.04";
fi fi
# Check for the Windows Subsystem for Linux (WSL) # Check for the Windows Subsystem for Linux (WSL)
if uname -r | grep -iq "microsoft"; then KERNEL=$(uname -r)
if echo "$KERNEL" | grep -iq "microsoft"; then
echo "Warning: The Windows Subsystem for Linux (WSL) is not yet fully supported by this script." echo "Warning: The Windows Subsystem for Linux (WSL) is not yet fully supported by this script."
fi fi

15
setup/questions.sh
View File

@ -81,7 +81,7 @@ address, so we're suggesting $DEFAULT_PRIMARY_HOSTNAME.
RE='^.+\.localdomain$' RE='^.+\.localdomain$'
# Regular expressions to check if the hostname is a valid FQDN # Regular expressions to check if the hostname is a valid FQDN
RE1='^.{4,253}$' RE1='^.{4,253}$'
RE2='^([[:alnum:]][[:alnum:]\-]{0,61}[[:alnum:]]\.)+[a-zA-Z]{2,63}$' RE2='^((xn--)?[[:alnum:]][[:alnum:]\-]{0,61}[[:alnum:]]\.)+(xn--)?[a-zA-Z]{2,63}$'
if [ -z "$PRIMARY_HOSTNAME" ]; then if [ -z "$PRIMARY_HOSTNAME" ]; then
# user hit ESC/cancel # user hit ESC/cancel
exit 1 exit 1
@ -203,18 +203,21 @@ if [ -z "${STORAGE_ROOT:-}" ]; then
fi fi
# Show the configuration, since the user may have not entered it manually. # Show the configuration, since the user may have not entered it manually.
# Adapted from: https://github.com/tdulcet/Linux-System-Information/blob/master/info.sh
echo -e "\nLinux Distribution:\t\t${PRETTY_NAME:-$ID-$VERSION_ID}" echo -e "\nLinux Distribution:\t\t${PRETTY_NAME:-$ID-$VERSION_ID}"
CPU=( $(sed -n 's/^model name[[:space:]]*: *//p' /proc/cpuinfo | uniq) ) echo -e "Linux Kernel:\t\t\t$KERNEL"
mapfile -t CPU < <(sed -n 's/^model name[[:space:]]*: *//p' /proc/cpuinfo | uniq)
if [ -n "$CPU" ]; then if [ -n "$CPU" ]; then
echo -e "Processor (CPU):\t\t${CPU[*]}" echo -e "Processor (CPU):\t\t${CPU[*]}"
fi fi
CPU_CORES=$(nproc --all) CPU_THREADS=$(nproc --all)
echo -e "CPU Cores:\t\t\t$CPU_CORES" CPU_CORES=$(( CPU_THREADS / $(lscpu | grep -i '^thread(s) per core' | sed -n 's/^.\+:[[:blank:]]*//p') ))
echo -e "CPU Cores/Threads:\t\t$CPU_CORES/$CPU_THREADS"
echo -e "Architecture:\t\t\t$HOSTTYPE (${ARCHITECTURE}-bit)" echo -e "Architecture:\t\t\t$HOSTTYPE (${ARCHITECTURE}-bit)"
echo -e "Total memory (RAM):\t\t$(printf "%'d" $((TOTAL_PHYSICAL_MEM / 1024))) MiB ($(printf "%'d" $((((TOTAL_PHYSICAL_MEM * 1024) / 1000) / 1000))) MB)" echo -e "Total memory (RAM):\t\t$(printf "%'d" $((TOTAL_PHYSICAL_MEM / 1024))) MiB ($(printf "%'d" $((((TOTAL_PHYSICAL_MEM * 1024) / 1000) / 1000))) MB)"
echo -e "Total swap space:\t\t$(printf "%'d" $((TOTAL_SWAP / 1024))) MiB ($(printf "%'d" $((((TOTAL_SWAP * 1024) / 1000) / 1000))) MB)" echo -e "Total swap space:\t\t$(printf "%'d" $((TOTAL_SWAP / 1024))) MiB ($(printf "%'d" $((((TOTAL_SWAP * 1024) / 1000) / 1000))) MB)"
if command -v lspci >/dev/null; then if command -v lspci >/dev/null; then
GPU=( $(lspci 2>/dev/null | grep -i 'vga\|3d\|2d' | sed -n 's/^.*: //p') ) mapfile -t GPU < <(lspci 2>/dev/null | grep -i 'vga\|3d\|2d' | sed -n 's/^.*: //p')
fi fi
if [ -n "$GPU" ]; then if [ -n "$GPU" ]; then
echo -e "Graphics Processor (GPU):\t${GPU[*]}" echo -e "Graphics Processor (GPU):\t${GPU[*]}"
@ -239,7 +242,7 @@ else
echo -e "Private IP Address:\t\t$PRIVATE_IP" echo -e "Private IP Address:\t\t$PRIVATE_IP"
fi fi
fi fi
TIME_ZONE=$(timedatectl 2>/dev/null | grep -i 'time zone\|timezone' | sed -n 's/^.*: //p') TIME_ZONE=$(timedatectl 2>/dev/null | grep -i 'time zone:\|timezone:' | sed -n 's/^.*: //p')
echo -e "Time zone:\t\t\t$TIME_ZONE\n" echo -e "Time zone:\t\t\t$TIME_ZONE\n"
if command -v systemd-detect-virt >/dev/null && CONTAINER=$(systemd-detect-virt -c); then if command -v systemd-detect-virt >/dev/null && CONTAINER=$(systemd-detect-virt -c); then
echo -e "Virtualization container:\t$CONTAINER\n" echo -e "Virtualization container:\t$CONTAINER\n"