how we can achive this in aix. i need this for a latency check.[...]
You can combine ping with tcpdump which returns fine timestamps. Example:
Use the two timestamps of the packets that share same sequence number to calculate round trip time. A granularity of six digits behind the full second should be good enough (as long as you do not work with HPC stock trading apps )
Hi All
We have one SCO Server here and it never gives us any trouble. Until Now!! Well its not earth shattering but we have one user who is complaining of a very slow response time when changing to his Home Directory. Other users who have similar profiles are OK. I have su'd to this user and I can... (0 Replies)
Hi!
I'm trying to create a script for seeing if a host is alive, and depending on the ammount of packet loss, send an mail+sms to warn if the host seems to be dead.
The script i'm trying to use is:
pinger ()
{
ping_stat=`ping -c 4 host.name | grep loss | awk '{print $7}'`
echo "Packet... (18 Replies)
Hi,
I develop simple animation ping script on Solaris Platform. It is like Cisco ping.
Examples and source code are below.
bash-3.00$ gokcell 152.155.180.8 30
Sending 30 Ping Packets to 152.155.180.8
!!!!!!!!!!!!!.!!!!!!!!!!!!!!!.
% 93.33 success... % 6.66 packet loss...... (1 Reply)
Hello All,
i would like to start ping command and the result should contain also Timestate.
this i'm able to do with following command :
ping HOSTNAME | perl -nle 'print scalar(localtime), " ", $_'
or
ping HOSTNAME | awk '/time\=(+\.{2}) ms /^+ bytes from / { "date" | getline pong;... (1 Reply)
Hi
I am using perl to ping a list of nodes - with script below :
$p = Net::Ping->new("icmp");
if ($p->ping($host,1)){
print "$host is alive.\n";
}
else {
print "$host is unreacheable.\n";
}
$p->close();... (4 Replies)
Hi All,
I have the requirement where am pinging the server and matching the IP address with the existing IP address. Below code is returning me the IP address and my requirement is i have to see that also whether it is pinging or not
PING useipapd01 (172.22.32.87) 56(84) bytes of data.
64... (1 Reply)
Hello all. Let me qualify my question by saying that I am struggling with how to ask the question I am semi green but have no issue reading up if pointed in the right direction. Please be gentle!
A RHEL server 6.2. Hosts a statistical application that has some web apps and batch programming... (0 Replies)
help with bash script!
im am working on this script to make sure my server will stay online, so i made this script..
HOSTS="192.168.138.155"
COUNT=4
pingtest(){
for myhost in "$@"
do
ping -c "$COUNT" "$myhost" &&return 1
done
return 0
}
if pingtest $HOSTS
#100% failed... (4 Replies)
Discussion started by: mort3924
4 Replies
LEARN ABOUT DEBIAN
shorewall-tcfilters
SHOREWALL-TCFILTERS(5) [FIXME: manual] SHOREWALL-TCFILTERS(5)NAME
tcfilters - Shorewall u32 classifier rules file
SYNOPSIS
/etc/shorewall/tcfilters
DESCRIPTION
Entries in this file cause packets to be classified for traffic shaping.
Beginning with Shorewall 4.4.15, the file may contain entries for both IPv4 and IPv6. By default, all rules apply to IPv4 but that can be
changed by inserting a line as follows:
IPV4
Following entries apply to IPv4.
IPV6
Following entries apply to IPv6
ALL
Following entries apply to both IPv4 and IPv6. Each entry is processed twice; once for IPv4 and once for IPv6.
The columns in the file are as follows (where the column name is followed by a different name in parentheses, the different name is used in
the alternate specification syntax).
CLASS - interface:class
The name or number of an interface defined in shorewall-tcdevices[1](5) followed by a class number defined for that interface in
shorewall-tcclasses[2](5).
SOURCE - {-|address}
Source of the packet. May be a host or network address. DNS names are not allowed.
DEST - {-|address}}
Destination of the packet. May be a host or network address. DNS names are not allowed.
You may exclude certain hosts from the set already defined through use of an exclusion (see shorewall-exclusion[3](5)).
PROTO - {-|protocol-number|protocol-name|all}
Protocol.
DEST PORT (dport) - [-|port-name-or-number]
Optional destination Ports. A Port name (from services(5)) or a port number; if the protocol is icmp, this column is interpreted as the
destination icmp-type(s).
SOURCE PORT (sport) - [-|port-name-or-number]
Optional source port.
TOS (Optional) - [-|tos]
Specifies the value of the TOS field. The tos value can be any of the following:
o tos-minimize-delay
o tos-maximuze-throughput
o tos-maximize-reliability
o tos-minimize-cost
o tos-normal-service
o hex-number
o hex-number/hex-number
The hex-numbers must be exactly two digits (e.g., 0x04)x.
LENGTH - [-|number]
Optional - Must be a power of 2 between 32 and 8192 inclusive. Packets with a total length that is strictly less than the specified
number will match the rule.
EXAMPLE
Example 1:
Place all 'ping' traffic on interface 1 in class 10. Note that ALL cannot be used because IPv4 ICMP and IPv6 ICMP are two different
protocols.
#CLASS SOURCE DEST PROTO DEST
# PORT
IPV4
1:10 0.0.0.0/0 0.0.0.0/0 icmp echo-request
1:10 0.0.0.0/0 0.0.0.0/0 icmp echo-reply
IPV6
1:10 ::/0 ::/0 icmp6 echo-request
1:10 ::/0 ::/0 icmp6 echo-reply
FILES
/etc/shorewall/tcfilters
SEE ALSO
http://shorewall.net/traffic_shaping.htm
http://shorewall.net/MultiISP.html
http://shorewall.net/PacketMarking.html
http://shorewall.net/configuration_file_basics.htm#Pairs
shorewall(8), shorewall-accounting(5), shorewall-actions(5), shorewall-blacklist(5), shorewall-ecn(5), shorewall-exclusion(5),
shorewall-hosts(5), shorewall_interfaces(5), shorewall-ipsets(5), shorewall-maclist(5), shorewall-masq(5), shorewall-nat(5),
shorewall-netmap(5), shorewall-params(5), shorewall-policy(5), shorewall-providers(5), shorewall-proxyarp(5), shorewall-rtrules(5),
shorewall-routestopped(5), shorewall-rules(5), shorewall.conf(5), shorewall-secmarks(5), shorewall-tcclasses(5), shorewall-tcdevices(5),
shorewall-tos(5), shorewall-tunnels(5), shorewall-zones(5)NOTES
1. shorewall-tcdevices
http://www.shorewall.net/manpages/shorewall-tcdevices.html
2. shorewall-tcclasses
http://www.shorewall.net/manpages/shorewall-tcclasses.html
3. shorewall-exclusion
http://www.shorewall.net/manpages/shorewall-exclusion.html
[FIXME: source] 06/28/2012 SHOREWALL-TCFILTERS(5)