UNIX for Dummies Questions & Answers

Hello again!

When I log in to my computer (Ultra 5 running Solaris 8) from a pc (FTP or Telnet) I have to wait forever (about 30 seconds) before I can log in. Is this some kind of security thing? Can I turn it of? How?

Anders

Most likely when you login your system is not able to reverse-lookup your IP address... When you login type:

who am i

You will likely see an ip address in the last field...


Try to nslookup on this last field:

nslookup ip.ip.ip.ip

----
While you are at it, answer the following questions:

Do you have a DNS server?
How is your nsswitch.conf file setup? (It's in /etc/nsswitch.conf if you are curious.).. Can you cut-and-paste this file into your reply?..

---
Once you have done what I have suggested and provided the information I have request I can give you a solution to your problem..

- dEvNuL

Hi! Here is the information you asked for.

I colud not find a nslookup command!

Hope this can help you help me! :-)

Anders

$ who am i
anwi pts/5 okt 5 17:28 (192.168.43.34)

$ nslookup 192.168.43.34
nslookup: not found

$ cat /etc/nsswitch.conf
#
# /etc/nsswitch.dns:
#
# An example file that could be copied over to /etc/nsswitch.conf; it uses
# DNS for hosts lookups, otherwise it does not use any other naming service.
#
# "hosts:" and "services:" in this file are used only if the
# /etc/netconfig file has a "-" for nametoaddr_libs of "inet" transports.

passwd: files
group: files

# You must also set up the /etc/resolv.conf file for DNS name
# server lookup. See resolv.conf(4).
hosts: files dns
ipnodes: files
# Uncomment the following line and comment out the above to resolve
# both IPv4 and IPv6 addresses from the ipnodes databases. Note that
# IPv4 addresses are searched in all of the ipnodes databases before
# searching the hosts databases. Before turning this option on, consult
# the Network Administration Guide for more details on using IPv6.
#ipnodes: files dns

networks: files
protocols: files
rpc: files
ethers: files
netmasks: files
bootparams: files
publickey: files
# At present there isn't a 'files' backend for netgroup; the system will
# figure it out pretty quickly, and won't use netgroups at all.
netgroup: files
automount: files
aliases: files
services: files
sendmailvars: files
printers: user files

Probable solution: Add an entry for 192.168.43.34 in your /etc/hosts file. Something similar to:

Code:

192.168.43.34  mymachinename

Replace "mymachinename" with whatever hostname is appropriate.

Yep.. What pxt said.. That should solve your problem.... Did it?..

- dEvNuL

The ip number of the sun computer is already in the hosts file.
192.168.43.7 thirdparty

The other ip number was to my pc.

bash-2.03$ cd /etc/
bash-2.03$ cat hosts
#
# Internet host table
#
127.0.0.1 localhost
192.168.43.7 thirdparty loghost

Try to check the size of /usr file system

by the command # df -k /usr

if the size used is more than 95% than try to free
a part