Hi RudiC, at the moment I am starting from scratch. I will probably define the network I want to allocate against within the script, or maybe pass it in as an argument... either way, lets assume I have a 10.10.224.0/22 network (as an example) ... within the script I can already populate an array with the 'used' IP's in that range ... but my challenge is to find away of evaluating the ones that arent in use (free to use) within that range.
Sorry, but im not sure I understand the 2nd part of your question with those IPs you have given
Hi Guys,
Can someone please help me on adding/inserting a variable date to an sql scipt? Basically I want to assign a 7 days date range. As shown below..
#!/usr/bin/perl
use strict;
use Env qw(ORACLE_HOME);
my $SQLPLUS='/opt/oracle/product/10.1.0/db_1/bin/sqlplus -S... (1 Reply)
Hello,
I'm trying to find an nice solution for the following:
1) I have ranges of numbers (begin-end): 10-15, 20-30, 45-50
2) I have begin limit=0 and end limit=60.
3) I need to find out number ranges between begin limit and end limit that do not overlap with the ranges in item1.
In this... (6 Replies)
hi Experts
just wondering if you can help me check a number between a specific range
if i have an ip address , how can i say the valid number for ip between 1 to 254
something like this
if ($ip ) =~ /.../
{
}
what the pattern i need to type
thanks (3 Replies)
I am writing a mod perl 2 download module and I am facing the same issue as this guy.
mp2 / Apache byterange filter | ModPerl | ModPerl
If I remove the check for EOS in byterange_filter.c and recompile Apache2, the byte range filter is executed and the result is correct but I am not sure that... (0 Replies)
Hi,
while running the perl script i am getting this error message ,
Day '' out of range 1..31 at rsty.sh line 44
what do iam missing in the script, any suggestion
#!/usr/bin/perl
use Time::Local;
my $wday = $ARGV;
my $month = $ARGV;
# convert the month shortname into 0-11 number
if... (4 Replies)
Hi
I'm a student who is studying system administration. I need to write a perl script to allocate disk quota to users. I'm using ubuntu and When I try to run edquota command in command line it says that Can't find file system with quota. pls help me. I tried to edit fstab. but didn't work.
... (1 Reply)
Hi. I have a file with asterisk field separators and backslash line terminators. The first field in each line names the line type. I am trying to process each range separately. Here's what the data looks like:
BA*DATA\
LS*DATA1*DATA2*00020*\
TA*DATA1*DATA2*DATA3*\
TA*DATA1*DATA2*DATA3*\... (1 Reply)
How to allocate memory for a shell script on aix box at the time of execution i.e at runtime
Are there any commands for AIX in specific
Thanks in Advance (1 Reply)
How to allocate memory for a shell script on aix box at the time of execution i.e at runtime
Are there any commands for AIX in specific
Thanks in Advance (3 Replies)
How to allocate memory for a shell script on aix box at the time of execution i.e at runtime
Are there any commands for AIX in specific
Thanks in Advance (1 Reply)
PPTPD.CONF(5) File Formats Manual PPTPD.CONF(5)NAME
pptpd.conf - PPTP VPN daemon configuration
DESCRIPTION pptpd(8) reads options from this file, usually /etc/pptpd.conf. Most options can be overridden by the command line. The local and remote
IP addresses for clients must come from the configuration file or from pppd(8) configuration files.
OPTIONS
option option-file
the name of an option file to be passed to pppd(8) in place of the default /etc/ppp/options so that PPTP specific options can be
given. Equivalent to the command line --option option.
stimeout seconds
number of seconds to wait for a PPTP packet before forking the pptpctrl(8) program to handle the client. The default is 10 seconds.
This is a denial of service protection feature. Equivalent to the command line --stimeout option.
debug turns on debugging mode, sending debugging information to syslog(3). Has no effect on pppd(8) debugging. Equivalent to the command
line --debug option.
bcrelay internal-interface
turns on broadcast relay mode, sending all broadcasts received on the server's internal interface to the clients. Equivalent to the
command line --bcrelay option.
connections n
limits the number of client connections that may be accepted. If pptpd is allocating IP addresses (e.g. delegate is not used) then
the number of connections is also limited by the remoteip option. The default is 100.
delegate
delegates the allocation of client IP addresses to pppd(8). Without this option, which is the default, pptpd manages the list of IP
addresses for clients and passes the next free address to pppd. With this option, pptpd does not pass an address, and so pppd may
use radius or chap-secrets to allocate an address.
localip ip-specification
one or many IP addresses to be used at the local end of the tunnelled PPP links between the server and the client. If one address
only is given, this address is used for all clients. Otherwise, one address per client must be given, and if there are no free
addresses then any new clients will be refused. localip will be ignored if the delegate option is used.
remoteip ip-specification
a list of IP addresses to assign to remote PPTP clients. Each connected client must have a different address, so there must be at
least as many addresses as you have simultaneous clients, and preferably some spare, since you cannot change this list without
restarting pptpd. A warning will be sent to syslog(3) when the IP address pool is exhausted. remoteip will be ignored if the dele-
gate option is used.
noipparam
by default, the original client IP address is given to ip-up scripts using the pppd(8) option ipparam. The noipparam option pre-
vents this. Equivalent to the command line --noipparam option.
listen ip-address
the local interface IP address to listen on for incoming PPTP connections (TCP port 1723). Equivalent to the command line --listen
option.
pidfile pid-file
specifies an alternate location to store the process ID file (default /var/run/pptpd.pid). Equivalent to the command line --pidfile
option.
speed speed
specifies a speed (in bits per second) to pass to the PPP daemon as the interface speed for the tty/pty pair. This is ignored by
some PPP daemons, such as Linux's pppd(8). The default is 115200 bytes per second, which some implementations interpret as meaning
"no limit". Equivalent to the command line --speed option.
NOTES
An ip-specification above (for the localip and remoteip tags) may be a list of IP addresses (for example 192.168.0.2,192.168.0.3), a range
(for example 192.168.0.1-254 or 192.168.0-255.2) or some combination (for example 192.168.0.2,192.168.0.5-8). For some valid pairs might
be (depending on use of the VPN):
localip 192.168.0.1
remoteip 192.168.0.2-254
or
localip 192.168.1.2-254
remoteip 192.168.0.2-254
ROUTING CHECKLIST - PROXYARP
Allocate a section of your LAN addresses for use by clients.
In /etc/ppp/options.pptpd. set the proxyarp option. In pptpd.conf do not set localip option, but set remoteip to the allocated address
range. Enable kernel forwarding of packets, (e.g. using /proc/sys/net/ipv4/ip_forward ).
The server will advertise the clients to the LAN using ARP, providing it's own ethernet address. bcrelay(8) should not be required.
ROUTING CHECKLIST - FORWARDING
Allocate a subnet for the clients that is routable from your LAN, but is not part of your LAN.
In pptpd.conf set localip to a single address or range in the allocated subnet, set remoteip to a range in the allocated subnet. Enable
kernel forwarding of packets, (e.g. using /proc/sys/net/ipv4/ip_forward ). The LAN must have a route to the clients using the server as
gateway.
The server will forward the packets unchanged between the clients and the LAN. bcrelay(8) will be required to support broadcast protocols
such as NETBIOS.
ROUTING CHECKLIST - MASQUERADE
Allocate a subnet for the clients that is not routable from your LAN, and not otherwise routable from the server (e.g. 10.0.0.0/24).
Set localip to a single address in the subnet (e.g. 10.0.0.1), set remoteip to a range for the rest of the subnet, (e.g. 10.0.0.2-200).
Enable kernel forwarding of packets, (e.g. using /proc/sys/net/ipv4/ip_forward ). Enable masquerading on eth0 (e.g. iptables -t nat -A
POSTROUTING -o eth0 -j MASQUERADE ).
The server will translate the packets between the clients and the LAN. The clients will appear to the LAN as having the address corre-
sponding to the server. The LAN need not have an explicit route to the clients. bcrelay(8) will be required to support broadcast proto-
cols such as NETBIOS.
FIREWALL RULES pptpd(8) accepts control connections on TCP port 1723, and then uses GRE (protocol 47) to exchange data packets. Add these rules to your
iptables(8) configuration, or use them as the basis for your own rules:
iptables --append INPUT --protocol 47 --jump ACCEPT
iptables --append INPUT --protocol tcp --match tcp
--destination-port 1723 --jump ACCEPT
SEE ALSO pppd(8), pptpd(8), pptpd.conf(5).
29 December 2005 PPTPD.CONF(5)