9 More Discussions You Might Find Interesting
1. Cybersecurity
Hey Guys,
I am looking for a good firewall software to implement in medium/large office, with at least 150 users.
I was hopping you guys could help me on this one.
Regards, (4 Replies)
Discussion started by: andrevicente
4 Replies
2. Linux
Dear All
I have put my windows machine behind my centos firewall server with just one NIC. At now, the windows machine can ping 192.9.9.3 but cannot resolve valid url (like www.google.com). I have set DNS for it as well. Can you please let me know what is the missing step?
Thank you (6 Replies)
Discussion started by: hadimotamedi
6 Replies
3. SuSE
Is there a command line interface to the firewall? (4 Replies)
Discussion started by: jgt
4 Replies
4. AIX
Please help me in creating the script in AIX.
requirement is;
The new component's main function is to extract the data from DB2 tables and company's firewall directly.
The component function needs to check the timestamp in the DB2 tables ((CREDAT and CRETIM) with the requested timestamp and... (1 Reply)
Discussion started by: priyanka3006
1 Replies
5. AIX
The main function is to extract the data from DB2 tables and FTPed to outside the company's firewall directly.
pls find the attachment and help me out..i have only one day to do this (1 Reply)
Discussion started by: priyanka3006
1 Replies
6. Cybersecurity
hi everyone
I am a newbee to firewall scripting. cannot understand how to write rules per host. in ip6tables.
anyone plz:( (2 Replies)
Discussion started by: xecutioner
2 Replies
7. Shell Programming and Scripting
Here is my situation. You can make all kinds of comments about how I am doing it and why from the networking standpoint, but I am really only looking for comments on how to make it work. Of course, any other ideas for how to do this would be welcome.
I have an iptables firewall that allows only... (1 Reply)
Discussion started by: manouche
1 Replies
8. Cybersecurity
Would it be possible to restrict access to internet pages in the following way?
A machine:
IP = 128.1.17.123
Only pages from domains of the type "go.jp" and "ne.jp" are viewable. All others are not viewable or only partly viewable.
B machine:
IP = 128.1.17.146
Regardless of the domain... (4 Replies)
Discussion started by: mntamago
4 Replies
9. Cybersecurity
Just out of curiosity, I see a lot of people here use Linux IPTables as their firewall.
Anyone here use something else like OpenBSD PF or *BSD IPF, IPFW?
I'm quite fond of OpenBSD and their Packet Filters. I find their syntax much easier to manage and from my personal experience, I find them... (5 Replies)
Discussion started by: tarballed
5 Replies
Net::Config(3pm) Perl Programmers Reference Guide Net::Config(3pm)
NAME
Net::Config - Local configuration data for libnet
SYNOPSYS
use Net::Config qw(%NetConfig);
DESCRIPTION
"Net::Config" holds configuration data for the modules in the libnet distribution. During installation you will be asked for these values.
The configuration data is held globally in a file in the perl installation tree, but a user may override any of these values by providing
their own. This can be done by having a ".libnetrc" file in their home directory. This file should return a reference to a HASH containing
the keys described below. For example
# .libnetrc
{
nntp_hosts => [ "my_preferred_host" ],
ph_hosts => [ "my_ph_server" ],
}
__END__
METHODS
"Net::Config" defines the following methods. They are methods as they are invoked as class methods. This is because "Net::Config" inherits
from "Net::LocalCfg" so you can override these methods if you want.
requires_firewall HOST
Attempts to determine if a given host is outside your firewall. Possible return values are.
-1 Cannot lookup hostname
0 Host is inside firewall (or there is no ftp_firewall entry)
1 Host is outside the firewall
This is done by using hostname lookup and the "local_netmask" entry in the configuration data.
NetConfig VALUES
nntp_hosts
snpp_hosts
pop3_hosts
smtp_hosts
ph_hosts
daytime_hosts
time_hosts
Each is a reference to an array of hostnames (in order of preference), which should be used for the given protocol
inet_domain
Your internet domain name
ftp_firewall
If you have an FTP proxy firewall (NOT an HTTP or SOCKS firewall) then this value should be set to the firewall hostname. If your
firewall does not listen to port 21, then this value should be set to "hostname:port" (eg "hostname:99")
ftp_firewall_type
There are many different ftp firewall products available. But unfortunately there is no standard for how to traverse a firewall. The
list below shows the sequence of commands that Net::FTP will use
user Username for remote host
pass Password for remote host
fwuser Username for firewall
fwpass Password for firewall
remote.host The hostname of the remote ftp server
0 There is no firewall
1
USER user@remote.host
PASS pass
2
USER fwuser
PASS fwpass
USER user@remote.host
PASS pass
3
USER fwuser
PASS fwpass
SITE remote.site
USER user
PASS pass
4
USER fwuser
PASS fwpass
OPEN remote.site
USER user
PASS pass
5
USER user@fwuser@remote.site
PASS pass@fwpass
6
USER fwuser@remote.site
PASS fwpass
USER user
PASS pass
7
USER user@remote.host
PASS pass
AUTH fwuser
RESP fwpass
ftp_ext_passive
ftp_int_passive
FTP servers can work in passive or active mode. Active mode is when you want to transfer data you have to tell the server the address
and port to connect to. Passive mode is when the server provide the address and port and you establish the connection.
With some firewalls active mode does not work as the server cannot connect to your machine (because you are behind a firewall) and the
firewall does not re-write the command. In this case you should set "ftp_ext_passive" to a true value.
Some servers are configured to only work in passive mode. If you have one of these you can force "Net::FTP" to always transfer in
passive mode; when not going via a firewall, by setting "ftp_int_passive" to a true value.
local_netmask
A reference to a list of netmask strings in the form "134.99.4.0/24". These are used by the "requires_firewall" function to determine
if a given host is inside or outside your firewall.
The following entries are used during installation & testing on the libnet package
test_hosts
If true then "make test" may attempt to connect to hosts given in the configuration.
test_exists
If true then "Configure" will check each hostname given that it exists
perl v5.16.3 2014-06-17 Net::Config(3pm)