02-28-2013
sudo -i is not actually a system login. /bin/login is not involved, so the motd doesn't happen.
When you login to an actual terminal username prompt, you're talking to /bin/login.
10 More Discussions You Might Find Interesting
1. Post Here to Contact Site Administrators and Moderators
Is there an issue with it? (2 Replies)
Discussion started by: Spetnik
2 Replies
2. Shell Programming and Scripting
I need to replace the current /etc/motd text file with a new motd across 30+ servers.
Which is the best way to do this? Shell script? sed?
Does anyone have an example I can use?
Thanks in advance. Unix people are the best!!! :) (2 Replies)
Discussion started by: antalexi
2 Replies
3. UNIX for Dummies Questions & Answers
I have a site, www.mySite.com
I have a folder where pages are served from, htdocs/
I have a folder containing one site at htdocs/drupal/. I'd like to be able to go to www.mySite.com and see the index.php page within the drupal folder, but instead I see a directory listing:
drupal
phpBB3
... (9 Replies)
Discussion started by: kumakuma
9 Replies
4. Solaris
Hi Gurus out there...
I am pondering over a situation where I have non-root access (user account), where I am trying to determine paths (including multipaths) on a host.
"luxadm display" seems very appropriate, but requires root access.
Is there anyway I can get the FC path information?
... (1 Reply)
Discussion started by: verisund
1 Replies
5. IP Networking
I have a Linux server connected to the Internet like so:
Server (66.77.88.130) -> /29 VLAN Gateway (66.77.88.129) -> Core Router (64.0.0.1) -> Internet
If I run a traceroute from my server to an arbitrary site on the internet I get a result like this:
# traceroute some-other-server... (2 Replies)
Discussion started by: ramnet
2 Replies
6. Homework & Coursework Questions
im making c code in linux and im having problems with one command, id should bring up a list but instead id doesnt do nothing, there are no error's, can anyone solve whats wrong ?
void environ()
{
extern char **environ;
int i=0;
for (i = 0; environ !=NULL;i++)
{
... (1 Reply)
Discussion started by: figureout
1 Replies
7. UNIX for Advanced & Expert Users
I'm trying to compile vim73 with the Motif Toolkit.
./configure --enable-gui=motif
make
./src/vim -g
Vim runs in a window, without the standard toolbar and
menu bar.
I tried to recompile with
./configure --enable-gui=gnome2It compiled with GTK2 toolkit, but still no menubar, nor toolbar.... (0 Replies)
Discussion started by: mghis
0 Replies
8. Emergency UNIX and Linux Support
Hi guys.
I have installed Acronis disk director in windows XP and allocate some free space to install Debian beside fedora.
after completion i rebooted and now grub is in command line mode and does not show the menu list.
(I didn't remove the fedora partition. I just allocate some space from... (1 Reply)
Discussion started by: majid.merkava
1 Replies
9. Red Hat
I've created a Perl daemon that needs to send an email when an error/shutdown occurs. I use the Perl Email::Valid module and that uses sendmail. When I run the script as a regular user, the email is sent with no issues. When I run the script as the root user, I get the following message in... (1 Reply)
Discussion started by: OldManEd
1 Replies
10. UNIX for Dummies Questions & Answers
Hi,
I have a cronjob that mounts machines every 15 minutes.
sudo mount -t cifs -o username=Ren_user,password=AIB#1109$,nounix,bg,sec=ntlmssp //10.204.129.233/Desktop /mnt/clinical/234mac
When I open a new shell and ls /mnt/clinical/234macto the mount point it is blank, but when I do the... (7 Replies)
Discussion started by: jdilts
7 Replies
LOGIN(1) Linux Administrator's Manual LOGIN(1)
NAME
login - Begin session on the system
SYNOPSIS
login [ -p ] [ -h host ] [ -H ] [ -f username | username ]
DESCRIPTION
login is used when signing onto a system. If no argument is given, login prompts for the username.
The user is then prompted for a password, where approprate. Echoing is disabled to prevent revealing the password. Only a small number of
password failures are permitted before login exits and the communications link is severed.
If password aging has been enabled for the account, the user may be prompted for a new password before proceeding. He will be forced to
provide his old password and the new password before continuing. Please refer to passwd(1) for more information.
The user and group ID will be set according to their values in the file. There is one exception if the user ID is zero: in this case, only
the primary group ID of the account is set. This should prevent that the system adminitrator cannot login in case of network problems. The
value for $HOME, $SHELL, $PATH, $LOGNAME, and $MAIL are set according to the appropriate fields in the password entry. $PATH defaults to
/usr/local/bin:/bin:/usr/bin:. for normal users, and to /sbin:/bin:/usr/sbin:/usr/bin for root if not other configured. The environment
variable $TERM will be preserved, if it exists (other environment variables are preserved if the -p option is given) or be initialize to
the terminal type on your tty line, as specified in /etc/ttytype.
Then the user's shell is started. If no shell is specified for the user in /etc/passwd, then /bin/sh is used. If there is no directory
specified in /etc/passwd, then / is used (the home directory is checked for the .hushlogin file described above).
login reads the /etc/login.defs(5) configuration file. Please refer to this documenation for options which could be set.
OPTIONS
-p Used by getty(8) to tell login not to destroy the environment
-f Used to skip a second login authentication. This option is deprecated and should not be used. It does specifically not work for
root. Using this option also means, that not all PAM functions are called.
-h Used by other servers (i.e., telnetd(8)) to pass the name of the remote host to login so that it may be placed in utmp and wtmp.
Only the superuser may use this option.
-H Used by other servers (i.e., telnetd(8)) to tell login that printing the hostname should be suppressed in the login: prompt.
FILES
/var/run/utmp - list of current login sessins
/var/log/wtmp - list of previous login sessions
/etc/passwd - user account information
/etc/shadow - encrypted passwords and age information
/etc/motd - system message file
/etc/login.defs - configuration file
SEE ALSO
init(8), getty(8), mail(1), passwd(1), passwd(5), environ(7), shutdown(8), login.defs(5)
BUGS
A recursive login, as used to be possible in the good old days, no longer works; for most purposes su(1) is a satisfactory substitute.
Indeed, for security reasons, login does a vhangup() system call to remove any possible listening processes on the tty. This is to avoid
password sniffing. If one uses the command "login", then the surrounding shell gets killed by vhangup() because it's no longer the true
owner of the tty. This can be avoided by using "exec login" in a top-level shell or xterm.
AUTHOR
Derived from BSD login 5.40 (5/9/89) by Michael Glad (glad@daimi.dk) for HP-UX
Ported to Linux 0.12: Peter Orbaek (poe@daimi.aau.dk)
Added new features: Thorsten Kukuk (kukuk@suse.de)
PAM Login 3.32 2. May 2007 LOGIN(1)