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  #1 (permalink)  
Old 09-04-2007, 10:39 AM
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Default No route to host

Hi

May be i m a new to this

i m trying to connect through putty to my linux machine running on the VM ware , i get an erro "no route to host "
my Vmware settings "Ethernet - Bridged
Network connection is Bridged -Connected directly to physical network

when i run the cmd ifconfig-a my i.p is "16.138.59.189"

while i try to ping i get a response , but can't putty to it

pls advise
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Old 09-04-2007, 09:21 PM
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Default No route to host

Even though if u have assigned ip to your linux machine it is not enough to connect to your linux machine, means through which port are you connecting to the machine that particular service has to be enabled.

For example if you are trying to connect through 22 port the you have to enable ssh service in your linux machine.
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Old 09-06-2007, 02:22 PM
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Turn on sshd by running any one of the following:
service sshd start
Code:
/etc/init.d/ssh start
Verify ssh port is open
Code:
netstat -tulpn | grep :22
Make sure firewall is not blocking access to port 22
Code:
/sbin/iptables -L -n
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Old 09-11-2007, 03:44 PM
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Default Could be tcp wrappers

Quote:
Originally Posted by csvinayak View Post
when i run the cmd ifconfig-a my i.p is "16.138.59.189"
while i try to ping i get a response , but can't putty to it
I believe the above posters are correct, but here is one more thing you can try if that doesn't work: Check /etc/hosts.allow and /etc/hosts.deny to see if SSH is being protected by TCP wrappers. (Don't worry if they're empty.)

--b9
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Old 09-17-2007, 03:27 PM
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Default Hi ALL i tried all the options but no luck

i m sorry if this is a repetitive stuff


still unable to putty to linux which is running on vmare "error message No route to HOST

i m running on win xp ,, where i have installed Vmware inside the Vmware i have installed the Linux image .....VMWARE n/w connection is Bridged

here my sys i.p is "16.138.59.22"

& ip in the linux is "16.138.59.81"

i m able to ping the i.p's from the windows C.L.I & from linux as well

ssh port is opened , no firewalls
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Old 10-10-2007, 11:44 AM
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Default No route to host. Solution.

Hello, csvinayak
I too have a problem with putty connect to my
VM Ware. And what I do :

1. Check ip`s and ports in my CentOS (VM Ware) and my PuTTY.

Result : no mistakes.

2. Check the state sshd in my CentOS (VM Ware):

[root@localhost ~]# /etc/init.d/sshd status
sshd (pid 3940 3936) is running...
[root@localhost ~]#

Result : sshd is running.

3. Check the state a port on CentOs for connection through ssh:

[root@localhost ~]# netstat -a | grep ssh
tcp 0 0 *:ssh *:* LISTEN
[root@localhost ~]#

or

[root@localhost ~]# cat /etc/services | grep ssh
ssh 22/tcp # SSH Remote Login Protocol
ssh 22/udp # SSH
Remote Login Protocol
[root@localhost ~]# netstat -an | grep 22
tcp 0 0 :::22 :::* LISTEN
[root@localhost ~]#


Result: all is normal.

4. Check configuration my iptables:

[root@localhost ~]# /sbin/iptables -L -n
Chain INPUT (policy ACCEPT)
target prot opt source destination
RH-Firewall-1-INPUT all -- 0.0.0.0/0 0.0.0.0/0

Chain FORWARD (policy ACCEPT)
target prot opt source destination
RH-Firewall-1-INPUT all -- 0.0.0.0/0 0.0.0.0/0

Chain OUTPUT (policy ACCEPT)
target prot opt source destination

Chain RH-Firewall-1-INPUT (2 reference
target prot opt source destination
ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 255
ACCEPT esp -- 0.0.0.0/0 0.0.0.0/0
ACCEPT ah -- 0.0.0.0/0 0.0.0.0/0
ACCEPT udp -- 0.0.0.0/0 224.0.0.251 udp dpt:5353
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:631
ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED
REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
[root@localhost ~]#

Result: God dammed!! No rule for port 22! -> port 22
- forbidden!

4. Add rule for port 22 to my iptables:
Just insert
it line by means of your favourite editor
in
/etc/sysconfig/iptables:
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT

before:

-A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited
COMMIT

Warning: your chaine name may be enother, because you have enother Linux. Curent
chaine name you can see through /sbin/iptables -L -n (see above).

5. Check
/etc/sysconfig/iptables:

[root@localhost ~]# cat /etc/sysconfig/iptables
# Firewall configuration written by system-config-securitylevel
# Manual customization of this file is not recommended.
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:RH-Firewall-1-INPUT - [0:0]
-A INPUT -j RH-Firewall-1-INPUT
-A FORWARD -j RH-Firewall-1-INPUT
-A RH-Firewall-1-INPUT -i lo -j ACCEPT
-A RH-Firewall-1-INPUT -p icmp --icmp-type any -j ACCEPT
-A RH-Firewall-1-INPUT -p 50 -j ACCEPT
-A RH-Firewall-1-INPUT -p 51 -j ACCEPT
-A RH-Firewall-1-INPUT -p udp --dport 5353 -d 224.0.0.251 -j ACCEPT
-A RH-Firewall-1-INPUT -p udp -m udp --dport 631 -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
-A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited
COMMIT
[root@localhost ~]#

6. Reboot you Linux and enjoy PuTTY
[root@localhost ~]# reboot

PS: If you want to thank me, just send me mail
for example:
[root@localhost ~]# echo "Thanks, you help me " | mutt buran83@gmail.com
[root@localhost ~]#

With the best regards !
Andrew B.
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Old 10-12-2007, 09:06 PM
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Quote:
Originally Posted by csvinayak View Post
i m sorry if this is a repetitive stuff


still unable to putty to linux which is running on vmare "error message No route to HOST

i m running on win xp ,, where i have installed Vmware inside the Vmware i have installed the Linux image .....VMWARE n/w connection is Bridged
I'm sorry but I don't get out. You cannot install vmware inside vmware. Generally you do as follows:

Host -> Vmware -> Guest

Do not use following

Host -> Vmware -> Vmware -> Guest
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Old 12-07-2007, 11:22 AM
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Dear Friend
Check your routing tables and also check your physical network
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Old 04-07-2008, 05:44 PM
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check whether root is permitted to login through ssh or not. I think "#PermitRootLogin yes" should be enabled to make your thing work.
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