I had removed the bind packages by the time your message was posted. But this time I did not install the bind-chroot package and used the standard bind. However, I hit exactly the same issue. [can ping ip addresses in all directions but hostname ping only works from server]. So I checked the udp/tcp port 53 but did not find them in netstat -an. I issued the following commands as found in google and did /etc/init.d/iptables restart but no joy. So looks like this might be the issue why my clients cannot reach the dns server. Any ideas on how to open udp and tcp port 53 please (CentOS 5)?
I am running LexMark MarkNetPro-3 print servers on my AIX network. All of the sudden, none of my printers will print anymore. I am getting an error message on the console:
Unable to resolve host name.
This message comes up everytime a user submits a print job.
Any Ideas? (1 Reply)
I have my webpage hosted on one unix server, and using the command <!--#exec cmd="./nUsers.sh"--> it calls the appropriate script to tell me how many people are on the unix server at that time. I need to be able to find out how many users are on another unix server without logging in but using the... (1 Reply)
Hello,
I am working on HP-UX , and in the /etc/hosts file we have setup an alias:
aa.bb.cc.dd devmach2.unix.org devmach2 devma2v
The alias devma2v does not work. Error when pinging devma2v
ping: unknown host devma2v
For devmach2 the ping works fine , returning the correct IP... (4 Replies)
We have a RedHat 8.0 NIS master, with a RedHat 8.0 NIS Slave.
We also have a small number of SUSE 9.1 and SUSE 10 machines here for evaluation.
However, no matter what i do, the SUSE machines will not talk to the NIS Servers.
If i broadcast for NIS Servers for the specified NIS domain, it... (1 Reply)
Hi!
I have a dns server (bind) with 2 zones forward and reverse and i need to resolve one ip completely different. I have add to /etc/hosts and i can ping but i can't do nslookup. I've tried to add the dns server responsible to resolve that ip on /etc/resolv.conf without success. So how can i... (2 Replies)
I have installed WAMPSERVER 2.0 on my windows vista x64 system but still am having issues with getting the webserver to be seen outside my local network. It is working fine within my local network.
Been through several setup tutorials so far, no dice still.
For testing purposes I have... (1 Reply)
Hello,
I am planning to build a HP Proliant DL380 server w/ Debian. I would like to connect 6 or 8 thin clients (or zero-clients) to this server and host the applications for the thin clients. The thin-clients are all wireless LAN. All data created by users on the thin clients saved on the... (0 Replies)
Dear Unix experts
My application runs on Linux.
The host file has the same ip address in two differnt lines but with different names.
For example
10.114.45.14 prod.xyz.com prodx
10.114.45.14 prod-int.xyz.com prodx-int
Could you please let me know if it is right?
What is the... (2 Replies)
Hello,
I have a question: I want to create a n client to one server connection. This is the client-server algorithm.
Enybody help to make the changes? (0 Replies)
I am on a VPS that is pretty much unmanaged so it means im on my own. I did my best to configure it so i can host my own site for other people to see it online but seems like i have network problems because in the last days many of my users report they cant enter my site from my domain and... (7 Replies)
Discussion started by: supercain
7 Replies
LEARN ABOUT SUSE
ss
SS(8) System Manager's Manual SS(8)NAME
ss - another utility to investigate sockets
SYNOPSIS
ss [options] [ FILTER ]
DESCRIPTION
ss is used to dump socket statistics. It allows showing information similar to netstat. It can display more TCP and state informations
than other tools.
OPTIONS
These programs follow the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is
included below.
-h, --help
Show summary of options.
-V, --version
Output version information.
-n, --numeric
Do now try to resolve service names.
-r, --resolve
Try to resolve numeric address/ports.
-a, --all
Display all sockets.
-l, --listening
Display listening sockets.
-o, --options
Show timer information.
-e, --extended
Show detailed socket information
-m, --memory
Show socket memory usage.
-p, --processes
Show process using socket.
-i, --info
Show internal TCP information.
-s, --summary
Print summary statistics. This option does not parse socket lists obtaining summary from various sources. It is useful when amount
of sockets is so huge that parsing /proc/net/tcp is painful.
-4, --ipv4
Display only IP version 4 sockets (alias for -f inet).
-6, --ipv6
Display only IP version 6 sockets (alias for -f inet6).
-0, --packet
Display PACKET sockets.
-t, --tcp
Display only TCP sockets.
-u, --udp
Display only UDP sockets.
-d, --dccp
Display only DCCP sockets.
-w, --raw
Display only RAW sockets.
-x, --unix
Display only Unix domain sockets.
-f FAMILY, --family=FAMILY
Display sockets of type FAMILY. Currently the following families are supported: unix, inet, inet6, link, netlink.
-A QUERY, --query=QUERY
List of socket tables to dump, separated by commas. The following identifiers are understood: all, inet, tcp, udp, raw, unix,
packet, netlink, unix_dgram, unix_stream, packet_raw, packet_dgram.
-D FILE
Do not display anything, just dump raw information about TCP sockets to FILE after applying filters. If FILE is - stdout is used.
-F FILE, --filter=FILE
Read filter information from FILE. Each line of FILE is interpreted like single command line option. If FILE is - stdin is used.
FILTER := [ state TCP-STATE ] [ EXPRESSION ]
Please take a look at the official documentation (Debian package iproute-doc) for details regarding filters.
USAGE EXAMPLES
ss -t -a
Display all TCP sockets.
ss -u -a
Display all UDP sockets.
ss -o state established '( dport = :ssh or sport = :ssh )'
Display all established ssh connections.
ss -x src /tmp/.X11-unix/*
Find all local processes connected to X server.
ss -o state fin-wait-1 '( sport = :http or sport = :https )' dst 193.233.7/24
List all the tcp sockets in state FIN-WAIT-1 for our apache to network 193.233.7/24 and look at their timers.
SEE ALSO ip(8), /usr/share/doc/iproute-doc/ss.html (package iproutedoc)
AUTHOR
ss was written by Alexey Kuznetosv, <kuznet@ms2.inr.ac.ru>.
This manual page was written by Michael Prokop <mika@grml.org> for the Debian project (but may be used by others).
SS(8)