11-03-2011
Did you look at the flowchart/visuals i linked to?
9 More Discussions You Might Find Interesting
1. IP Networking
Hi
I have small home network and I want to block some forums on web
When I use this
iptables -A INPUT -s forum -j DROP
rules is applied but when I restart some of PC rules are not present any more also I tried to save firewall settings
iptables-save > /root/dsl.fw
but how to... (2 Replies)
Discussion started by: solaris_user
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2. Cybersecurity
Hello,
I was playing around with iptables to setup an isolated system. On a SLES10 system, I ran the below to setup my first draft of rules. I noticed that the rules come into effect immediately and do not require any restart of iptables.
iptables -A INPUT -j ACCEPT
iptables -A OUTPUT -m... (4 Replies)
Discussion started by: garric
4 Replies
3. Ubuntu
Could someone help me with writing rules for iptables?
I need a dos attacks protection for a game server.
port type udp
ports 27015:27030
interface: eth0
Accept all packets from all IPs
Chek if IP sent more than 50 packets per second
Drop all packets from this IP for 5 minutes
I would be... (0 Replies)
Discussion started by: Greenice
0 Replies
4. Red Hat
Hi Champs
i am new in Iptables and trying to write rules for my Samba server.I took some help from internet, created one script and run from rc.local :
#Allow loopback
iptables -I INPUT -i lo -j ACCEPT
# Accept packets from Trusted network
iptables -A INPUT -s my-network/subnet -j... (0 Replies)
Discussion started by: Vaibhav.T
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5. Web Development
Hi all,
Exactly like my title says.
I am learning PHP and MySQL and I used to use /var/www/ to host (contain or store) my files (.htm/.php) for testing. I could configure, finally, apache2 to use ~/public_html instead.
Now I when I tried to use $_SERVER it still directs (I used echo to show... (7 Replies)
Discussion started by: faizlo
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6. Proxy Server
Hi there,
I have a VPS and am working on a little side project for myself and friend which is a DNS proxy. Everything was great till recently. My VPS IP has been detected by some botnet or something, and I believe SMURF attacks are occuring. The VPS provider keeps shutting down my VPS... (3 Replies)
Discussion started by: phi0x
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7. UNIX for Advanced & Expert Users
Hi,
I've been struggling with this all morning and seem to have a blind spot on what the problem is. I'm trying to use iptables to block traffic on a little cluster of raspberry pi's but to allow ssh and ping traffic within it.
The cluster has a firewall server with a wifi card connecting to... (4 Replies)
Discussion started by: steadyonabix
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8. Cybersecurity
Hello,
I did 2 scripts. The second one is, I hope, more secure.
What do you think?
Basic connection (no server, no router, no DHCP and the Ipv6 is disabled)
#######script one
####################
iptables -F
iptables -X -t filter
iptables -P INPUT DROP
iptables -P FORWARD... (6 Replies)
Discussion started by: Thomas342
6 Replies
9. IP Networking
Hi, I am relatively new to firewalls and netfilter. I have a Debian Stretch router box running dnsmasq, connected to a VPN. Occasionally dnsmasq polls all of the desired DNS servers to select the fastest. When it does this it responds to replies of the non-selected DNS servers with a icmp type... (0 Replies)
Discussion started by: CrazyDave
0 Replies
LEARN ABOUT CENTOS
xdbegetvisualinfo
XdbeGetVisualInfo(3) X FUNCTIONS XdbeGetVisualInfo(3)
NAME
XdbeGetVisualInfo - Get dbe Visual Informations
SYNOPSIS
#include <X11/extensions/Xdbe.h>
XdbeScreenVisualInfo *XdbeGetVisualInfo(
Display *dpy,
Drawable *screen_specifiers,
int *num_screens)
DESCRIPTION
This function returns information about which visuals support double buffering. The argument num_screens specifies how many elements there
are in the screen_specifiers list. Each drawable in screen_specifiers designates a screen for which the supported visuals are being
requested. If num_screens is zero, information for all screens is requested. In this case, upon return from this function, num_screens
will be set to the number of screens that were found. If an error occurs, this function returns NULL, else it returns a pointer to a list
of XdbeScreenVisualInfo structures of length num_screens. The nth element in the returned list corresponds to the nth drawable in the
screen_specifiers list, unless num_screens was passed in with the value zero, in which case the nth element in the returned list corre-
sponds to the nth screen of the server, starting with screen zero. The XdbeScreenVisualInfo structure has the following fields:
int count
XdbeVisualInfo *visinfo
count specifies the number of items in visinfo. visinfo specifies a list of visuals, depths, and performance hints for this screen.
The XdbeVisualInfo structure has the following fields:
VisualID visual
int depth
int perflevel
visual specifies one visual ID that supports double-buffering. depth specifies the depth of the visual. perflevel is a performance hint.
The only operation defined on a perflevel is comparison to a perflevel of another visual on the same screen. The visual having the higher
perflevel is likely to have better double-buffering graphics performance than the visual having the lower perflevel. Nothing can be
deduced from the following: the magnitude of the difference of two perflevels, a perflevel value in isolation, or comparing perflevels from
different servers.
ERRORS
BadDrawable
One or more values passed in screen_specifiers is not a valid drawable.
SEE ALSO
DBE, XdbeAllocateBackBufferName(), XdbeBeginIdiom(), XdbeDeallocateBackBufferName(), XdbeEndIdiom(), XdbeFreeVisualInfo(), XdbeGetBack-
BufferAttributes(), XdbeQueryExtension(), XdbeSwapBuffers().
X Version 11 libXext 1.3.2 XdbeGetVisualInfo(3)