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UNIX for Dummies Questions & Answers
Hosts file
Post 302669663 by vbe on Wednesday 11th of July 2012 07:43:57 AM
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10 More Discussions You Might Find Interesting
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ok i have a question now when i add machines on network that are running unix do i add them in the /etc/hosts file also include them in dns (4 Replies)
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Hi!
Im trying to use host.allow & host.deny to resrtic access to my sun machine, but it doesnt seem to work... I want to allow full access from certain IPīs (ssh,http,ftp,etc...) but deny all kind of conections from outsideworld, the way that im doing that is:
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Hi All,
I am to the UNIX world and want to know if I can specify a range of IP addresses instead of having to include one by one on the HOSTS file.
Can I just say
127.20.1.1 to 127.20.1.156 ?
Or the only way is to put one by one along with the machine name next to the IP ?
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Hi,
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Hello,
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... (1 Reply)
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Guys hw ya all doing.by the way wrote a script which is below.
f()
{
for host in hostname1 hostname2; do
{
#host=hostname1
user = 'rocky'
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ftp -v $host
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bin
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We have a server that need to have 50 or so entries added to the /etc/hosts file. All the entries will be on the same subnet so i wanted to know if i can add the range to the /etc/hosts file and if so how. (4 Replies)
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hi all
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Hello,
We ve got 2 sites (Site1, Site2), joined thanks vpn.
We had 2 differents files with a list of all host in each sites.
Server1 has list1.ini, and Server2 has list2.ini
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LEARN ABOUT FREEBSD
irdadump
IRDADUMP(8) IRDADUMP(8) NAME
irdadump - monitors the IrDA traffic on one or more links. SYNOPSIS
irdadump [ -b ] [ -c n ] [ -d ] [ -x ] [ -s n ] [ -t ] [ -l ] [ -v ] [ -i device ] OPTIONS
-b dump bytes in columns -c n set snapcols for byte printing with -b option -d prints the time difference between the current and the previous frame -x dump frame (bytes and ascii) -s n set snaplen for -b and -x option -t force TTP decoding of unknown connections -l set line buffering on output file -v verbose -i device interface DESCRIPTION
irdadump is a tool for monitoring the IrDA traffic on one or more links. Just write "make" to compile the program. When you run the pro- gram, you should be able to see the IrDA traffic (if any). One advantage of implementing IrDA device drivers as network device drivers is that you should be able to attach sniffers to the device (or actually the packet type). That way, it is possible to use a really handy utility called irdadump (instead of tcpdump). This will make debugging MUCH easier. Linux-2.2 implements the BPF (Berkeley Packet Filter), so its possible to filter out exactly the frames you want to see. You may use hostname to separate different machines names. Or grep to filter the output, too. irdadump must be run as root or installed setuid root, as it requires root privileges. EXAMPLES
The output should look something like this: / # ./irdadump 20:11:45.412199 xid:cmd 0x0015c23b > 0xffffffff S=6 s=0 20:11:45.492137 xid:cmd 0x0015c23b > 0xffffffff S=6 s=1 20:11:45.572137 xid:cmd 0x0015c23b > 0xffffffff S=6 s=2 20:11:45.652208 xid:cmd 0x0015c23b > 0xffffffff S=6 s=3 20:11:45.732137 xid:cmd 0x0015c23b > 0xffffffff S=6 s=4 20:11:45.812137 xid:cmd 0x0015c23b > 0xffffffff S=6 s=5 20:11:45.892175 xid:cmd 0x0015c23b > 0xffffffff S=6 s=255 Linux 20:11:45.902362 xid:rsp 0xf7be8388 < 0x0015c23b S=6 s=5 ACTiSYS IR100M 20:11:48.412197 xid:cmd 0x0015c23b > 0xffffffff S=6 s=0 20:11:48.492656 xid:cmd 0x0015c23b > 0xffffffff S=6 s=1 20:11:48.572177 xid:cmd 0x0015c23b > 0xffffffff S=6 s=2 20:11:48.652169 xid:cmd 0x0015c23b > 0xffffffff S=6 s=3 20:11:48.732177 xid:cmd 0x0015c23b > 0xffffffff S=6 s=4 20:11:48.812153 xid:cmd 0x0015c23b > 0xffffffff S=6 s=5 20:11:48.822371 xid:rsp 0xf7be8388 < 0x0015c23b S=6 s=4 ACTiSYS IR100M 15 packets received by filter Turning on the "-d" option will make irdadump print the time difference between the current and the previous frame: / # ./irdadump -d 20:11:18.412475 (0982.06 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=0 20:11:18.492345 (0079.87 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=1 20:11:18.572376 (0080.03 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=2 20:11:18.652979 (0080.60 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=3 20:11:18.732354 (0079.38 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=4 20:11:18.755093 (0022.74 ms) xid:rsp 0xf7be8388 < 0x0015c23b S=6 s=3 ACTiSYS IR100M 20:11:18.812350 (0057.26 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=5 20:11:18.892518 (0080.17 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=255 Linux 20:11:21.412486 (2519.97 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=0 20:11:21.492395 (0079.91 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=1 20:11:21.572368 (0079.97 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=2 20:11:21.652405 (0080.04 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=3 20:11:21.732458 (0080.05 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=4 irdadump must be run as root or installed setuid root, as it requires root privileges. irdadump -d -x -s 256 will check the contents of the frames. This should tell us if the frames have malformed content, or if the irda stack is doing something wrong. DIAGNOSTICS
N.N. BUGS
N.N. SEE ALSO
irattach(8), irdaping(8), irdadump(8), findchip(8), irpsion5(8), modprobe(8) Linux/IrDA Project http://irda.sourceforge.net -*- Linux/IrDA-Tutorial http://www.hpl.hp.com/personal/Jean_Tourrilhes/IrDA/index.html -*- Infrared-HOWTO http://tuxmobil.org/howtos.html AUTHOR
This manual page is written by Werner Heuser <wehe@tuxmobil.org>. It is based on the READMEs from irda-utils by the Linux/IrDA Project and the Linux/IrDA-Tutorial. COPYRIGHT
Copyright (c) 2001 Werner Heuser Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License (GFDL), Version 1.1 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts and no Back-Cover Texts. 03 July 2006 IRDADUMP(8)