9 More Discussions You Might Find Interesting
1. Debian
I spent a lot of time trying to implement outbound traffic filtering with: cgroups + tc + iptables on Debian Jessie. Unfortunately there is still something wrong.
The biggest issue is:
- cgroups install + config
- net_cls subsystem implementation
- packets marking with net_cls
- appropriate... (0 Replies)
Discussion started by: Novi
0 Replies
2. Homework & Coursework Questions
Creating a large number of rules such as 100000, iptables will produce errors after 42000 rules "iptables: Unknown error 18446744073709551615".
But another machine where i have debian virtual machine I can easily run the sciprt of 100000 of rules
I am waiting for your reply
4.... (1 Reply)
Discussion started by: tahirfattani
1 Replies
3. Cybersecurity
Hello,
I am currently using a Sonicwall firewall to protect a class C network of public IP addresses. The sonicwall allows me to specify which IP's will be on the DMZ port and the remainder are on the LAN port by default. I would like to replace this Sonicwall with a linux box and use iptables... (3 Replies)
Discussion started by: richard987
3 Replies
4. Cybersecurity
I noticed a few w00tw00ts in our Apache2 logfile the other day, so I thought I would write a quick post on blocking them with iptables. Feel free to improve upon any of my scripts or ideas in this thread.
First of all, what is a w00tw00t and where might we find one?
Well, a w00tw00t is an... (10 Replies)
Discussion started by: Neo
10 Replies
5. Cybersecurity
HI all,
I have setup IPTables firewall/Router and my home network, with address space 192.168.10.XXX
Form my private network hosts, i can ping the gateway ( 192.168.10.101 ) , but the reverse is not happening.
Can someone help me as of what i need to do, so that i can ping my private... (1 Reply)
Discussion started by: chandan_m
1 Replies
6. UNIX for Dummies Questions & Answers
I'm new to Linux and I made a big mistake at work recently locking myself out of our own server :(.
I did iptables -F first as the tutorial said and then entered the rules. I wanted to start over again so I did iptables -F and it locked us out. We had to get someone to physically restart... (0 Replies)
Discussion started by: nogumo
0 Replies
7. Linux
I have installed a linux 9 router/firewall and have issues with outside DNS queries making it in. here are my IPTABLE rules, can anyone make some suggestions?
ETH1 is my outside facing Interface, ETH0 is my inside facing interface.
Accept If input interface is not eth1
Accept If protocol... (6 Replies)
Discussion started by: frankkahle
6 Replies
8. UNIX for Advanced & Expert Users
I have installed a linux 9 router/firewall and have issues with outside DNS queries making it in. here are my IPTABLE rules, can anyone make some suggestions?
ETH1 is my outside facing Interface, ETH0 is my inside facing interface.
Accept If input interface is not eth1
Accept If protocol is... (1 Reply)
Discussion started by: frankkahle
1 Replies
9. UNIX for Dummies Questions & Answers
I have already compiled the kernel and configured it to run as a firewall. My computer has 2 NICs and is on two seperate networks. I can ping both networks from my computer, but workstations on one network can not ping workstations on the other.
What Scripts or commands do I need to install ? (2 Replies)
Discussion started by: Deuce
2 Replies
WHO(1) User Commands WHO(1)
NAME
who - show who is logged on
SYNOPSIS
who [OPTION]... [ FILE | ARG1 ARG2 ]
DESCRIPTION
Print information about users who are currently logged in.
-a, --all
same as -b -d --login -p -r -t -T -u
-b, --boot
time of last system boot
-d, --dead
print dead processes
-H, --heading
print line of column headings
--ips print ips instead of hostnames. with --lookup, canonicalizes based on stored IP, if available, rather than stored hostname
-l, --login
print system login processes
--lookup
attempt to canonicalize hostnames via DNS
-m only hostname and user associated with stdin
-p, --process
print active processes spawned by init
-q, --count
all login names and number of users logged on
-r, --runlevel
print current runlevel
-s, --short
print only name, line, and time (default)
-t, --time
print last system clock change
-T, -w, --mesg
add user's message status as +, - or ?
-u, --users
list users logged in
--message
same as -T
--writable
same as -T
--help display this help and exit
--version
output version information and exit
If FILE is not specified, use /var/run/utmp. /var/log/wtmp as FILE is common. If ARG1 ARG2 given, -m presumed: 'am i' or 'mom likes' are
usual.
AUTHOR
Written by Joseph Arceneaux, David MacKenzie, and Michael Stone.
REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report who translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
Full documentation at: <http://www.gnu.org/software/coreutils/who>
or available locally via: info '(coreutils) who invocation'
GNU coreutils 8.28 January 2018 WHO(1)