3182235786a
[cce]#!/bin/bash#install the telnet service #defaultly add a user to test: #default_user: test default_passwd: test
set +H config_file=/etc/xinetd.d/telnet read -t 10 -p “installing now ?(y|n):” AN case $AN in n|N|no)
:;; *) echo “start installing…..”;sleep 2 yum install -y telnet-server [ $? -ne 0 ]&& (echo “install fail…..”;exit 1)
echo “install secussfully….”;; esac echo “Start to config…”;sleep 3 sed -i /disable/s/yes/no/ $config_file
if [ $? -eq 0 ];then sed -i /disable/d $config_file sed -i /{/a\\tdisable=no $config_file read -t 20 -p “limit the accessing ip{y|n} ?” AN
fi case $AN in yes|y|Y) while : do read -p “import the ip or network{eg 10.1.1.1 or 10.1.1.0/24}:” IP_NET
sed -i “/{/a\no_access=$IP_NET” $config_file [ $? -eq 0 ]&&echo “Successfully……” echo -e “\n” read -t 10 -p “Go on ??(y|n):” answer
case $answer in yes|y|Y) continue;; *) break;; esac done;; *) echo -e “\n”;; esac read -t 20 -p “set the only ip or net to access?(y|n):” AN
case $AN in yes|y|Y) while : do read -p “import the ip or network{eg 10.1.1.1 or 10.1.1.0/24}:” IP_NET
sed -i “/{/a\only_from=$IP_NET” $config_file [ $? -eq 0 ]&&echo “Successfully……” echo -e “\n” read -t 10 -p “Go on ??(y|n):” answer
case $answer in yes|y|Y) continue;; *) break;; esac done;; *) echo -e “\n”;; esac read -t 20 -p “if you need to change the port of telnet service?(y|n):” AN
case $AN in Y|y|yes) read -p “Import the port you want to change to:” PORT echo “wait,changing…..”;sleep 2
sed -i “/^telnet/s/[0-9][0-9]*/$PORT/” /etc/services ([ $? -ne 0 ]&& echo “sorry the changing has failed!!! the port is still 22,you can change by yourself!!”)|| \
echo “Changing successfully !!! the port of telnet is $PORT now!! you had batter remember this!!!”;;
*) echo -e “\n”;; esac echo “The firewall may stop the telnet service,stop them or import a rule to allow?”
select var in “Stop_firewall” “Import_A_rule” ;do break done echo “now do as your choice :$var”;sleep 3
case $var in “Stop_firewall”) WORD=`service iptables status|grep -o stopped` if [ -n $WORD ];then echo “The firewall has been stopped….”
else service iptables stop ([ $? -ne 0 ]&&echo “Failed…!! please do that by yourself….”)|| \ (echo “Successfully……”;sleep 1)
fi;; *) service iptables restart >/dev/null 2>&1 iptables -I INPUT 1 -p tcp –dport 22 -j ACCEPT ([ $? -ne 0 ]&&echo “Failed…!! please do that by yourself….”;sleep 1)|| \
echo “Successfully……”;; esac read -t 10 -p “If you want to let the root user to login?(y|n):” AN
case $AN in y|Y|yes) for((i=0;i>/etc/securetty;done [ $? -eq 0 ]&&echo ” Sucessfully…..”;sleep 2;;
*) :;; esac chkconfig –add telnet > /dev/null 2>&1 chkconfig –level 35 telnet on > /dev/null 2>&1 echo “Creating the user:test and the password is :test”| grep test –color=yes ;sleep 2
useradd test passwd test>/dev/null 2>&1<
read -t 6 -p “Start the sevice ?(y|n):” AN case $AN in N|n|no) :;; *) echo -e “\n” service xinetd start
[ $? -eq 0 ]&&echo “Successfully starting….”;sleep 3;; esac echo -e “now exiting….”;sleep 2[/cce]
