Please let me know what to be done here. I am trying to install Hadoop in Ubuntu.The ssh connectivity is throwing error

$ sudo apt-get install openssh-server 

Reading package lists... Done 

Building dependency tree

Reading state information... Done 

Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation:



The following packages have unmet dependencies: 

openssh-server : 

Depends: openssh-client (= 1:6.6p1-2ubuntu1) but 1:6.6p1-2ubuntu2 is to be installed 

Recommends: ncurses-term but it is not going to be installed 

Recommends: ssh-import-id but it is not going to be installed 

E: Unable to correct problems, you have held broken packages.





$ ifconfig



eth0 Link encap:Ethernet HWaddr 08:00:27:3a:a6:f3

inet addr:192.168.0.112 Bcast:192.168.0.255 Mask:255.255.255.0 

inet6 addr: fe80::a00:27ff:fe3a:a6f3/64 Scope:Link 

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 

RX packets:15543 errors:0 dropped:0 overruns:0 frame:0 

TX packets:10845 errors:0 dropped:0 overruns:0 carrier:0 

collisions:0 txqueuelen:1000 

RX bytes:11839138 (11.8 MB) TX bytes:1448354 (1.4 MB)





lo Link encap:Local Loopback

inet addr:127.0.0.1 Mask:255.0.0.0 

inet6 addr: ::1/128 Scope:Host 

UP LOOPBACK RUNNING MTU:65536 Metric:1 

RX packets:2175 errors:0 dropped:0 overruns:0 frame:0 

TX packets:2175 errors:0 dropped:0 overruns:0 

carrier:0 collisions:0 txqueuelen:0 

RX bytes:217643 (217.6 KB) TX bytes:217643 (217.6 KB)







$ sudo apt-get install openssh-server

Some packages could not be installed. 

The following information may help to resolve the situation: 

The following packages have unmet dependencies: 

openssh-server : 

Depends: openssh-client (= 1:6.6p1-2ubuntu1) but 1:6.6p1-2ubuntu2 is to be installed 

Recommends: ncurses-term but it is not going to be installed 

Recommends: ssh-import-id but it is not going to be installed 

E: Unable to correct problems, you have held broken packages.     





$ sudo iptables -L

 Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination 

$ sudo iptables -A INPUT -p tcp --dport ssh -j ACCEPT



$ ssh localhost ssh: connect to host localhost port 22: Connection refused