Shell Script para reunir información sobre la configuración de red de Linux

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Este script de shell es probado bajo CentOS/RHEL y Fedora. También puede trabajar en otras distribuciones de Linux.  Si deseas recoger y presentar información sobre la configuración de red en linux a su director de area, puedes utilizar este shell script Linux/UNIX para ello.

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#!/bin/bash
# A Linux Shell script to collect information on your network configuration.
# Last updated: 15/Oct/09
# ————————————————————————-

# Settings

HWINF=/usr/sbin/hwinfo
IFCFG=/sbin/ifconfig
IP4FW=/sbin/iptables
IP6FW=/sbin/ip6tables
LSPCI=/sbin/lspci
ROUTE=/sbin/route
NETSTAT=/bin/netstat
LSB=/usr/bin/lsb_release
 
## files ##
DNSCLIENT=”/etc/resolv.conf”
DRVCONF=”/etc/modprobe.conf”
NETALIASCFC=”/etc/sysconfig/network-scripts/ifcfg-eth?-range?”
NETCFC=”/etc/sysconfig/network-scripts/ifcfg-eth?”
NETSTATICROUTECFC=”/etc/sysconfig/network-scripts/route-eth?”
SYSCTL=”/etc/sysctl.conf”
 
## Output file ##
OUTPUT=”network.$(date +’%d-%m-%y’).info.txt”
 
## Email info to?? ##
SUPPORT_ID=”you@example.com”
 
chk_root(){
    local meid=$(id -u)
    if [ $meid -ne 0 ];
    then
        echo “You must be root user to run this tool”
        exit 999
    fi
}
 
write_header(){
    echo “—————————————————” >> $OUTPUT
    echo “$@” >> $OUTPUT
    echo “—————————————————”  >> $OUTPUT
}
 
dump_info(){
    echo “* Hostname: $(hostname)” >$OUTPUT
    echo “* Run date and time: $(date)” >>$OUTPUT
 
    write_header “Linux Distro”
    echo “Linux kernel: $(uname -mrs)” >>$OUTPUT
    $LSB -a >> $OUTPUT   
 
    [ -x ${HWINF} ] && write_header “${HWINF} –network_ctrl”
    [ -x ${HWINF} ] && ${HWINF} –network_ctrl >> $OUTPUT
 
    [ -x ${HWINF} ] && write_header “${HWINF} –isapnp”
    [ -x ${HWINF} ] && ${HWINF} –isapnp >> $OUTPUT
 
    write_header “PCI Devices”
    ${LSPCI} -v >> $OUTPUT
 
    write_header “$IFCFG Output”
    $IFCFG >> $OUTPUT
 
    write_header “Kernel Routing Table”
    $ROUTE -n >> $OUTPUT
 
    write_header “Network Card Drivers Configuration $DRVCONF”
    [ -f $DRVCONF ] && grep eth $DRVCONF  >> $OUTPUT || echo “Error $DRVCONF file not found.”  >> $OUTPUT
 
    write_header “DNS Client $DNSCLIENT Configuration”
    [ -f $DNSCLIENT ] && cat $DNSCLIENT >> $OUTPUT || echo “Error $DNSCLIENT file not found.” >> $OUTPUT
 
    write_header “Network Configuration File”
    for f in $NETCFC
    do
        if [ -f $f ]
        then
            echo “** $f **” >> $OUTPUT
            cat $f >> $OUTPUT
        else
            echo “Error $f not found.” >> $OUTPUT
        fi
    done
 
    write_header “Network Aliase File”
    for f in $NETALIASCFC
    do
        if [ -f $f ]
        then
            echo “** $f **” >> $OUTPUT
            cat $f >> $OUTPUT
        else
            echo “Error $f not found.” >> $OUTPUT
        fi
    done
 
    write_header “Network Static Routing Configuration”
    for f in $NETSTATICROUTECFC
    do
        if [ -f $f ]
        then
            echo “** $f **” >> $OUTPUT
            cat $f >> $OUTPUT
        else
            echo “Error $f not found.” >> $OUTPUT
        fi
    done
 
    write_header “IP4 Firewall Configuration”
    $IP4FW -L -n >> $OUTPUT
 
    write_header “IP6 Firewall Configuration”
    $IP6FW -L -n  >> $OUTPUT
 
    write_header “Network Stats”
    $NETSTAT -s >> $OUTPUT
 
    write_header “Network Tweaks via $SYSCTL”
    [ -f $SYSCTL ] && cat $SYSCTL >> $OUTPUT || echo “Error $SYSCTL not found.” >>$OUTPUT
 
    echo “The Network Configuration Info Written To $OUTPUT. Please email this file to $SUPPORT_ID.”
}
 
chk_root
dump_info

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