Useradd Command Why 1000:1000: Group?

Hi All,

Not able to find TREE command in EL6, its working fine in EL5. Need help on this.

Below are the details.



[root@localhost ~]# mkdir -p /college/sports/performer/cricket

[root@localhost ~]# tree /college/
-bash: tree: command not found

[root@localhost ~]# tree college/
-bash: tree: command not found

[root@localhost ~]# which tree
/usr/bin/which: no tree in (/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin: /usr/bin:/root/bin)

[root@localhost ~]# uname -a
Linux localhost.localdomain 2.6.32-71.el6.x86_64 #1 SMP Wed Sep 1 01:33:01 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux

[root@localhost ~]# id
uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023

Hi

I am logged in as root and i am have issues creating a new user

su - /usr/sbin/useradd paulg

Comes back with the error:

su: user /usr/sbin/useradd does not exist


Any ideas please as I need to create myself a user with root privileges

Cheers

A few of my servers show that this user id has expired.

I know that this is the name of a user account and group account and if I check out /etc/passwd there is an entry under /sbin/nologin. And, if I check under say top -u nobody, I don't see anything running for that user account. However that is the extent of my knowledge on this user account.

Should I be concerned that the passwd for this account is expired or are there cron jobs/programs that rely on this account?

thanks

I am trying to set up a "Proxy Server" in Linux, without using Squid (Part of my project). However I have beginner's knowledge of iptables. I am using the following script from "http://www.aboutdebian.com/proxy.

#!/bin/sh
INTIF="eth1"
EXTIF="eth0"
EXTIP="`/sbin/ifconfig eth0 | grep 'inet addr' | awk '{print $2}' | sed -e 's/.*://'`"
/sbin/depmod -a
/sbin/modprobe ip_tables
/sbin/modprobe ip_conntrack
/sbin/modprobe ip_conntrack_ftp
/sbin/modprobe ip_conntrack_irc
/sbin/modprobe iptable_nat
/sbin/modprobe ip_nat_ftp
echo "1" > /proc/sys/net/ipv4/ip_forward
echo "1" > /proc/sys/net/ipv4/ip_dynaddr
iptables -P INPUT ACCEPT
iptables -F INPUT
iptables -P OUTPUT ACCEPT
iptables -F OUTPUT
iptables -P FORWARD DROP
iptables -F FORWARD
iptables -t nat -F
iptables -A FORWARD -i $EXTIF -o $INTIF -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A FORWARD -i $INTIF -o $EXTIF -j ACCEPT
iptables -t nat -A POSTROUTING -o $EXTIF -j MASQUERADE

Question is there is no packet forwarding from eth1 to eth0 (verified from wireshark, a windows is using eth1's ip address as its default gateway)

Any help would be highly appreciated!

Hi,

I installed ghostscript via yum package manager. Later I wanted a newer version of ghostscript and compiled it from source. "make install" placed the gs executable file under /usr/local/bin/gs. This works if I run the command with absolute path, but if try to run gs, the shell will output

"-bash: /usr/bin/gs: No such file or directory"

if I echo the path variable it will display

/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin

If i run whereis it will give me the correct path
gs: /usr/local/bin/gs

How do I make it work so that typing "gs" will run the executable file from the /usr/local/bin/gs?

(I am using Centos 6)

Thanks.

I am porting linux on movidius M2 leon3 board,but unable to get login prompt I am only getting /etc/issue message
as below

UART: --> do_sys_open /etc/issue f1935ec0
UART: --> do_sys_open /etc/issue f1935ec0
UART: IamHere 3
UART: IamHere 3
UART: Welcome to Buildroot

No login prompt

my inittab script as below

# completely ignored by BusyBox init. If you want runlevels, use
# sysvinit.
#
# Format for each entry: <id>:<runlevels>:<action>:<process>
#
# id == tty to run on, or empty for /dev/console
# runlevels == ignored
# action == one of sysinit, respawn, askfirst, wait, and once
# process == program to run

# Startup the system
null::sysinit:/bin/mount -t proc proc /proc
null::sysinit:/bin/mount -o remount,rw / # REMOUNT_ROOTFS_RW
null::sysinit:/bin/mkdir -p /dev/pts
null::sysinit:/bin/mkdir -p /dev/shm
null::sysinit:/bin/mount -a
null::sysinit:/bin/hostname -F /etc/hostname
# now run any rc scripts
::sysinit:/etc/init.d/rcS
#ttyS::sysinit:/bin/echo "I am Manjunath to let this work."
#ttyS::respawn:/sbin/getty -L ttyS0 38400 vt100
# Example of how to put a getty on a serial line (for a terminal)
#::respawn:/sbin/getty -L ttyS0 9600 vt100
#::respawn:/sbin/getty -L ttyS1 9600 vt100
#
# Example how to put a getty on a modem line.
#::respawn:/sbin/getty 57600 ttyS2
ttyS0::respawn:/bin/sh </dev/ttyS0 >/dev/ttyS0 2>/dev/ttyS0
# Put a getty on the serial port
#ttyS0::askfirst:/bin/sh
#ttyS::respawn:/bin/sh </dev/ttyS0 >/dev/ttyS0 2>&1
ttyS0::respawn:/sbin/getty -n ttyS0 38400 vt100 # GENERIC_SERIAL
#ttyS::wait:/bin/sh </dev/ttyS0 >/dev/ttyS0 2>&1

# Logging junk
null::sysinit:/bin/touch /var/log/messages
null::respawn:/sbin/syslogd -n -m 0
null::respawn:/sbin/klogd -n
#null::sysinit:/bin/touch /var/log/messages
#null::wait:/sbin/syslogd -n -m 0
#null::respawn:/sbin/klogd -n

# Stuff to do for the 3-finger salute
::ctrlaltdel:/sbin/reboot

# Stuff to do before rebooting
null::shutdown:/usr/bin/killall klogd
null::shutdown:/usr/bin/killall syslogd
null::shutdown:/bin/umount -a -r
null::shutdown:/sbin/swapoff -a

Is any problem in my inittab.
please help me to get from this issue.

Thanks
Manjunath Goudar

Hi,

i have a small problem on my system... I recently wrote a small bash script and added it via crontab -u root -e and it's executed as it should.
Then a few days after i did edit my bash script, but once it is run by cron it doesn't reflect the changes i made to the script. I did manually restart crond, tryed sync, moved my script, renamed it even rstart the server - no success.
If i run my script manually it returns me the expected output.
part of my script (/root/sd.sh):
Code:

#!/bin/sh

echo -n "Checking Raid... "
RAID=`tw-cli /c0/u0 show status | cut -c17-31 | grep -ci OK`
RAIDSTATUS=`tw-cli /c0/u0 show status | head -n1 | cut -c17-31`
if [ $RAID -eq 0 ]; then
  VERIFYING=`tw-cli /c0/u0 show status | cut -c17-31 | grep -ci VERIFYING`
  REBUILDING=`tw-cli /c0/u0 show status | cut -c17-31 | grep -ci REBUILDING`
  if [ $VERIFYING -eq 1 ]; then
    CURRENTSTATUS=`tw-cli /c0/u0 show verifystatus | head -n1 | cut -c46-49`
  fi
  if [ $REBUILDING -eq 1 ]; then
    CURRENTSTATUS=`tw-cli /c0/u0 show rebuildstatus | head -n1 | cut -c47-50`
  fi
  echo "Raid is busy (Raid $RAIDSTATUS$CURRENTSTATUS)"
  exit 1
fi
echo "Raid is idle (Raid $RAIDSTATUS)"

echo -n "Checking for logged in Users... "
USERS=`who | wc -l`
if [ $USERS -gt 0 ]; then
  echo "Users online"
  exit 1
fi
echo "None logged in"

crontab -l :
Code:

root@monster:~# crontab -l
# Edit this file to introduce tasks to be run by cron.
#
# Each task to run has to be defined through a single line
# indicating with different fields when the task will be run
# and what command to run for the task
#
# To define the time you can provide concrete values for
# minute (m), hour (h), day of month (dom), month (mon),
# and day of week (dow) or use '*' in these fields (for 'any').#
# Notice that tasks will be started based on the cron's system
# daemon's notion of time and timezones.
#
# Output of the crontab jobs (including errors) is sent through
# email to the user the crontab file belongs to (unless redirected).
#
# For example, you can run a backup of all your user accounts
# at 5 a.m every week with:
# 0 5 * * 1 tar -zcf /var/backups/home.tgz /home/
#
# For more information see the manual pages of crontab(5) and cron(8)
#
# m h  dom mon dow   command
*/10 * * * * /root/sd.sh | logger
*/30 * * * * /root/dropbox.sh > /dev/null

syslog:
Code:

Mar 21 09:10:01 monster /USR/SBIN/CRON[3998]: (root) CMD (/root/sd.sh | logger)
Mar 21 09:10:01 monster logger: Checking Raid... Raid is busy (Raid )
Mar 21 09:17:01 monster /USR/SBIN/CRON[4045]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Mar 21 09:20:01 monster /USR/SBIN/CRON[4105]: (root) CMD (/root/sd.sh | logger)
Mar 21 09:20:01 monster logger: Checking Raid... Raid is busy (Raid )
Mar 21 09:30:01 monster /USR/SBIN/CRON[4266]: (root) CMD (/root/sd.sh | logger)
Mar 21 09:30:01 monster /USR/SBIN/CRON[4265]: (root) CMD (/root/dropbox.sh > /dev/null)
Mar 21 09:30:01 monster logger: Checking Raid... Raid is busy (Raid )

when i run sh /root/sd.sh
Code:

root@monster:~# sh /root/sd.sh
Checking Raid... Raid is idle (Raid OK)
Checking for logged in Users... Users online
root@monster:~#

Any ideas why? - any help or thoughts appreciated

regards
Pat

Hi all,

Been messing around with my CentOS 6.6 VM trying to break stuff and learn with it. I thought it may be a good learning exercise to (ok, sounds a bit stupid, but purposely) delete /sbin/init to see how I could recover and learn.

I've booted into a recovery CD and recovered the /sbin/init file to my existing directory, however, I'm still having issues booting the machine.

Per Google suggestions, I have given the new init file 755 permissions but it still does not boot.

I apologize that I have not had more ideas, I am currently Googling solutions but am having a bit of trouble knowing where to start. Any suggestions would be greatly appreciated, thank you.

Hi Friends,

I have migrated from RHEL-5.9 to RHEL-6.5 on my server. But iptables rules are not working in RHEL-6.5 as it is working with RHEL-5.9 with the same rules. Please check my rules and details are below.

eth1 for incoming traffic
ppp0,ppp1,ppp2 and ppp3 are DSL connection and it using for outgoing traffic.

I am able to send the traffic through each line separately but could not load-balance with all ppp interfaces through iptables.

I am using iptable mangle rules to distribute the traffic.

/sbin/iptables -t mangle -A OUTPUT -p tcp -m statistic --mode nth --every 4 --packet 0 -m tcp --tcp-flags FIN,SYN,ACK SYN -j MARK --set-mark 1
/sbin/iptables -t mangle -A OUTPUT -p tcp -m statistic --mode nth --every 4 --packet 1 -m tcp --tcp-flags FIN,SYN,ACK SYN -j MARK --set-mark 2
/sbin/iptables -t mangle -A OUTPUT -p tcp -m statistic --mode nth --every 4 --packet 2 -m tcp --tcp-flags FIN,SYN,ACK SYN -j MARK --set-mark 3
/sbin/iptables -t mangle -A OUTPUT -p tcp -m statistic --mode nth --every 4 -m tcp --tcp-flags FIN,SYN,ACK SYN -j MARK --set-mark 4

/sbin/ip route add table ppp0 default dev ppp0
/sbin/ip route add table ppp1 default dev ppp1
/sbin/ip route add table ppp2 default dev ppp2
/sbin/ip route add table ppp3 default dev ppp3

/sbin/ip rule add fwmark 1 pref 200 table ppp1
/sbin/ip rule add fwmark 2 pref 200 table ppp2
/sbin/ip rule add fwmark 3 pref 200 table ppp3
/sbin/ip rule add fwmark 4 pref 200 table ppp0

/sbin/iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE
/sbin/iptables -t nat -A POSTROUTING -o ppp1 -j MASQUERADE
/sbin/iptables -t nat -A POSTROUTING -o ppp2 -j MASQUERADE
/sbin/iptables -t nat -A POSTROUTING -o ppp3 -j MASQUERADE

/sbin/ip route app default equalize nexthop dev ppp0 nexthop dev ppp1 nexthop dev ppp2 nexthop dev ppp3

It was not working completely and after read some article to change the kernel parameter I am able to send the traffic but it is working only for some time and dropping connections without any errors.

"echo 2 > /proc/sys/net/ipv4/conf/default/rp_filter
"echo 2 > /proc/sys/net/ipv4/conf/all/rp_filter"
"net.ipv4.conf.default.rp_filter = 2"

The same rules were working perfectly in RHEL-5.9. Do i need to change any other kernel parameter get this done?

Please let me know what are the kernel parameters have to be changed to get this working as like RHEL-5.9 ?

Thanks,
Sekar

I am toying around with a LFS system and I am suddenly having trouble with sudo not finding binaries in the standard superuser only binary dirs (/sbin /usr/sbin). I am using sudo version 1.8.10p3. The sudoers file parses correctly and I did not modify except to allow users in the wheel group to be able use sudo to call any command. So I imaging something is wrong with the $PATH variable but I am not sure on what it is.