Samba on RHEL-6 with Windows 7

[user1@rhel-6 ~]$ su - root
Password:
[root@rhel-6 ~]# service smb status
smbd is stopped

[root@rhel-6 ~]# service smb start
Starting SMB services:
                                   [  OK  ]
[root@rhel-6 ~]# service smb status
smbd (pid  62320) is running...

[root@rhel-6 ~]# ps -aef | grep smb
root     62320     1  1 16:07 ?        00:00:00 smbd
root     62323 62320  3 16:07 ?        00:00:00 smbd
root     62334 62284  0 16:07 pts/1    00:00:00 grep smb

[root@rhel-6 ~]# cp -p /etc/samba/smb.conf /etc/samba/smb.conf.orig

[root@rhel-6 ~]# ls -la /etc/samba/smb.*
-rw-r--r-- 1 root root 11464 Jan 23  2013 /etc/samba/smb.conf
-rw-r--r-- 1 root root 11464 Aug 14  2013 /etc/samba/smb.conf.bak
-rw-r--r-- 1 root root 11464 Jan 23  2013 /etc/samba/smb.conf.orig
-rw-r--r-- 1 root root 10031 Aug 13  2013 /etc/samba/smb.conf.rpmsave

[root@rhel-6 ~]# vi /etc/samba/smb.conf

In the [global] section set the workgroup parameter:
 workgroup = RA-DEMO
 add the following to the end of the file then save it:
[samba-demo]
 comment = RHEL6-Windows Demo Share
 path=/samba-demo
 writeable = yes
 browseable = yes
 valid users = samba-user


  groupadd -g 1234 samba-users
  adduser -d /samba-demo -m -u 1234 -g 1234 -c "Samba demo user accnt" \
  adduser -d /samba-demo -m -u 1234 -g 1234 -c "Samba demo user accnt" samba-user
  ls -ld /samba-demo
  echo "This file was placed in the /samba-demo file share area on the RHEL6 server. > /samba-demo/This_is_the_RHEL6_server
  echo "This file was placed in the /samba-demo file share area on the RHEL6 server" > /samba-demo/This_is_the_RHEL6_server
  chown samba-user:samba-users /samba-demo/This_is_the_RHEL6_server
  ls -ld /samba-demo
  ls -l /samba-demo

[root@rhel-6 ~]# groupadd -g 1234 samba-users

[root@rhel-6 ~]# adduser -d /samba-demo -m -u 1234 -g 1234 -c "Samba demo user accnt" samba-user

[root@rhel-6 ~]# ls -ld /samba-demo
drwx------ 4 samba-user samba-users 4096 Mar 25 16:10 /samba-demo

[root@rhel-6 ~]# echo .This file was placed in the /samba-demo file share area on the
.This file was placed in the /samba-demo file share area on the

[root@rhel-6 ~]# echo "This file was placed in the /samba-demo file share area on the RHEL6 server" > /samba-demo/This_is_the_RHEL6_server

[root@rhel-6 ~]# chown samba-user:samba-users /samba-demo/This_is_the_RHEL6_server

[root@rhel-6 ~]# ls -ld /samba-demo
drwx------ 4 samba-user samba-users 4096 Mar 25 16:11 /samba-demo

[root@rhel-6 ~]# ls -l /samba-demo
total 4
-rw-r--r-- 1 samba-user samba-users 76 Mar 25 16:11 This_is_the_RHEL6_server

[root@rhel-6 ~]# smbpasswd -a samba-user
New SMB password:
Retype new SMB password:
Added user samba-user.

[root@rhel-6 ~]# testparm
Load smb config files from /etc/samba/smb.conf
rlimit_max: increasing rlimit_max (1024) to minimum Windows limit (16384)
Processing section "[homes]"
Processing section "[printers]"
Processing section "[samba-demo]"
Loaded services file OK.
Server role: ROLE_STANDALONE
Press enter to see a dump of your service definitions

[global]
        workgroup = RA-DEMO
        server string = Samba Server Version %v
        log file = /var/log/samba/log.%m
        max log size = 50
        idmap config * : backend = tdb
        cups options = raw

[homes]
        comment = Home Directories
        read only = No
        browseable = No

[printers]
        comment = All Printers
        path = /var/spool/samba
        printable = Yes
        print ok = Yes
        browseable = No

[samba-demo]
        comment = RHEL6-Windows Demo Share
        path = /samba-demo
        valid users = samba-user
        read only = No

[root@rhel-6 ~]# service smb restart
Shutting down SMB services:                                [  OK  ]
Starting SMB services:                                     [  OK  ]
[root@rhel-6 ~]# service smb status
smbd (pid  62398) is running...
[root@rhel-6 ~]# chkconfig smb on
[root@rhel-6 ~]# chkconfig --list smb
smb             0:off   1:off   2:on    3:on    4:on    5:on    6:off
[root@rhel-6 ~]# smbclient -L RHEL6-srv -U samba-user
Enter samba-user's password:
Connection to RHEL6-srv failed (Error NT_STATUS_UNSUCCESSFUL)
[root@rhel-6 ~]# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:0C:29:0D:9E:C1
          inet addr:142.88.100.106  Bcast:144.77.109.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fe0d:9ec1/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:4375060 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1329280 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1372746393 (1.2 GiB)  TX bytes:1005914980 (959.3 MiB)

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:16436  Metric:1
          RX packets:4 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:240 (240.0 b)  TX bytes:240 (240.0 b)

[root@rhel-6 ~]# smbclient -L 142.88.100.106 -U samba-user
Enter samba-user's password:
Domain=[RA-DEMO] OS=[Unix] Server=[Samba 4.0.0rc4]

        Sharename       Type      Comment
        ---------       ----      -------
        samba-demo      Disk      RHEL6-Windows Demo Share
        IPC$            IPC       IPC Service (Samba Server Version 4.0.0rc4)
        Microsoft_XPS_Document_Writer_(from_XP0007)_in_session_225_(redirected_1):27 Printer   PDFCreator (redirected 1)
        Microsoft_XPS_Document_Writer:3 Printer   Microsoft XPS Document Writer
        Microsoft_XPS_Document_Writer_(from_BOA0007D)_in_session_6_(redirected_1):24 Printer   HP Deskjet F4400 series (from W0_Nm0Qhounsvj4sran-) in session 9 (redirected 1)
        Fax:4           Printer   Fax
        HP_LaserJet_P4014.P4015_PCL6:8 Printer   HP LaserJet P4014/P4015 PCL6
        PDFCreator_(redirected_1):14 Printer   Microsoft XPS Document Writer (from PHNT-NAN227) in session 25 (redirected 1)
        Microsoft_XPS_Document_Writer_(from_WI_TjLWE1WS44HyRnVxQ)_in_session_10_(redirected_1):26 Printer   RightFax Fax Printer (redirected 1)
        Microsoft_XPS_Document_Writer_from_rgraber_(redirected_1):28 Printer   sutterec_gbutler (redirected 1)
        VMP001P2\Laser396:5 Printer   \\VMP001P2\Laser396
        Client.NEE-E0391945$Microsoft_XPS_Document_Writer_(redirected_1):10 Printer   Nitro PDF Creator (Pro 8) (from W0_Nm0Qhounsvj4sran-) in session 9 (redirected 1)
        Microsoft_XPS_Document_Writer_(redirected_1):11 Printer   Client/US-AC63906#/Microsoft XPS Document Writer (redirected 1)
        RightFax_Fax_Printer:2 Printer   RightFax Fax Printer
        Foxit_Reader_PDF_Printer:7 Printer   Foxit Reader PDF Printer
        Microsoft_XPS_Document_Writer_(from_WI_Y6oeiaFFxtABLEAHd)_in_session_1_(redirected_1):20 Printer   RightFax Fax Printer (redirected 1)
        Microsoft_XPS_Document_Writer_(from_SAP_ALL-D046154)_in_session_30_(redirected_1):25 Printer   Microsoft XPS Document Writer (redirected 1)
        Microsoft_XPS_Document_Writer_(from_TXUCORP-JYIB)_in_session_6_(redirected_1):16 Printer   Microsoft XPS Document Writer (from TXUCORP-JYIB) in session 6 (redirected 1)
        Send_To_OneNote_2010_(redirected_1):13 Printer   Microsoft XPS Document Writer (from JNBWKS77) in session 9 (redirected 1)
        Microsoft_XPS_Document_Writer_(from_WI_s67pKbyniVmHYkqSX)_in_session_5_(redirected_1):19 Printer   Microsoft XPS Document Writer (from W0_Nm0Qhounsvj4sran-) in session 9 (redirected 1)
        Microsoft_XPS_Document_Writer_(from_WI_mvaQVbkPEQoCAn_VP)_in_session_2_(redirected_1):18 Printer   Microsoft XPS Document Writer [ICA-tcp#9445] (redirected 1)
        Microsoft_XPS_Document_Writer_from_cfritz_(redirected_1):23 Printer   Send To OneNote 2010 (redirected 1)
        RightFax_Fax_Printer_(redirected_1):12 Printer   Microsoft XPS Document Writer (from CZC81527W0) in session 19 (redirected 1)
        VMP001P2\Laser369_Color:6 Printer   \\VMP001P2\Laser369_Color
        Microsoft_XPS_Document_Writer_from_bkuhns_(redirected_1):22 Printer   Microsoft XPS Document Writer (redirected 1)
        Send_To_OneNote_2010:1 Printer   Send To OneNote 2010
        Microsoft_XPS_Document_Writer_(from_WRG239113)_in_session_4_(redirected_1):21 Printer   PDFCreator (redirected 1)
        Microsoft_XPS_Document_Writer_(from_W0_R_T0OwPjsoCfOio4J)_in_session_8_(redirected_1):29 Printer   Send To OneNote 2010 (redirected 1)
        Microsoft_XPS_Document_Writer_(ICA-tcp$9445)_(redirected_1):15 Printer   Microsoft XPS Document Writer (from TXUCORP-CFK8) in session 8 (redirected 1)
        VMP001P2\Laser356:9 Printer   \\VMP001P2\Laser356
        Microsoft_XPS_Document_Writer_(from_UNN-HSHS3)_in_session_10_(redirected_1):17 Printer   Microsoft XPS Document Writer (from WRG239113) in session 4 (redirected 1)
        samba-user      Disk      Home Directories
Domain=[RA-DEMO] OS=[Unix] Server=[Samba 4.0.0rc4]

        Server               Comment
        ---------            -------

        Workgroup            Master
        ---------            -------
[root@rhel-6 ~]# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:0C:29:0D:9E:C1
          inet addr:142.88.100.106  Bcast:144.77.109.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fe0d:9ec1/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:4375461 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1329329 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1372812844 (1.2 GiB)  TX bytes:1005924674 (959.3 MiB)

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:16436  Metric:1
          RX packets:57 errors:0 dropped:0 overruns:0 frame:0
          TX packets:57 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:14929 (14.5 KiB)  TX bytes:14929 (14.5 KiB)


[root@rhel-6 ~]# smbclient -L //142.88.100.106/samba-demo -U samba-user
Enter samba-user's password:
Domain=[RA-DEMO] OS=[Unix] Server=[Samba 4.0.0rc4]

        Sharename       Type      Comment
        ---------       ----      -------
        samba-demo      Disk      RHEL6-Windows Demo Share
        IPC$            IPC       IPC Service (Samba Server Version 4.0.0rc4)
        Microsoft_XPS_Document_Writer_(from_XP0007)_in_session_225_(redirected_1):27 Printer   PDFCreator (redirected 1)
        Microsoft_XPS_Document_Writer:3 Printer   Microsoft XPS Document Writer
        Microsoft_XPS_Document_Writer_(from_BOA0007D)_in_session_6_(redirected_1):24 Printer   HP Deskjet F4400 series (from W0_Nm0Qhounsvj4sran-) in session 9 (redirected 1)
        Fax:4           Printer   Fax
        HP_LaserJet_P4014.P4015_PCL6:8 Printer   HP LaserJet P4014/P4015 PCL6
        PDFCreator_(redirected_1):14 Printer   Microsoft XPS Document Writer (from PHNT-NAN227) in session 25 (redirected 1)
        Microsoft_XPS_Document_Writer_(from_WI_TjLWE1WS44HyRnVxQ)_in_session_10_(redirected_1):26 Printer   RightFax Fax Printer (redirected 1)
        Microsoft_XPS_Document_Writer_from_rgraber_(redirected_1):28 Printer   sutterec_gbutler (redirected 1)
        VMP001P2\Laser396:5 Printer   \\VMP001P2\Laser396
        Client.NEE-E0391945$Microsoft_XPS_Document_Writer_(redirected_1):10 Printer   Nitro PDF Creator (Pro 8) (from W0_Nm0Qhounsvj4sran-) in session 9 (redirected 1)
        Microsoft_XPS_Document_Writer_(redirected_1):11 Printer   Client/US-AC63906#/Microsoft XPS Document Writer (redirected 1)
        RightFax_Fax_Printer:2 Printer   RightFax Fax Printer
        Foxit_Reader_PDF_Printer:7 Printer   Foxit Reader PDF Printer
        Microsoft_XPS_Document_Writer_(from_WI_Y6oeiaFFxtABLEAHd)_in_session_1_(redirected_1):20 Printer   RightFax Fax Printer (redirected 1)
        Microsoft_XPS_Document_Writer_(from_SAP_ALL-D046154)_in_session_30_(redirected_1):25 Printer   Microsoft XPS Document Writer (redirected 1)
        Microsoft_XPS_Document_Writer_(from_TXUCORP-JYIB)_in_session_6_(redirected_1):16 Printer   Microsoft XPS Document Writer (from TXUCORP-JYIB) in session 6 (redirected 1)
        Send_To_OneNote_2010_(redirected_1):13 Printer   Microsoft XPS Document Writer (from JNBWKS77) in session 9 (redirected 1)
        Microsoft_XPS_Document_Writer_(from_WI_s67pKbyniVmHYkqSX)_in_session_5_(redirected_1):19 Printer   Microsoft XPS Document Writer (from W0_Nm0Qhounsvj4sran-) in session 9 (redirected 1)
        Microsoft_XPS_Document_Writer_(from_WI_mvaQVbkPEQoCAn_VP)_in_session_2_(redirected_1):18 Printer   Microsoft XPS Document Writer [ICA-tcp#9445] (redirected 1)
        Microsoft_XPS_Document_Writer_from_cfritz_(redirected_1):23 Printer   Send To OneNote 2010 (redirected 1)
        RightFax_Fax_Printer_(redirected_1):12 Printer   Microsoft XPS Document Writer (from CZC81527W0) in session 19 (redirected 1)
        VMP001P2\Laser369_Color:6 Printer   \\VMP001P2\Laser369_Color
        Microsoft_XPS_Document_Writer_from_bkuhns_(redirected_1):22 Printer   Microsoft XPS Document Writer (redirected 1)
        Send_To_OneNote_2010:1 Printer   Send To OneNote 2010
        Microsoft_XPS_Document_Writer_(from_WRG239113)_in_session_4_(redirected_1):21 Printer   PDFCreator (redirected 1)
        Microsoft_XPS_Document_Writer_(from_W0_R_T0OwPjsoCfOio4J)_in_session_8_(redirected_1):29 Printer   Send To OneNote 2010 (redirected 1)
        Microsoft_XPS_Document_Writer_(ICA-tcp$9445)_(redirected_1):15 Printer   Microsoft XPS Document Writer (from TXUCORP-CFK8) in session 8 (redirected 1)
        VMP001P2\Laser356:9 Printer   \\VMP001P2\Laser356
        Microsoft_XPS_Document_Writer_(from_UNN-HSHS3)_in_session_10_(redirected_1):17 Printer   Microsoft XPS Document Writer (from WRG239113) in session 4 (redirected 1)
        samba-user      Disk      Home Directories
Domain=[RA-DEMO] OS=[Unix] Server=[Samba 4.0.0rc4]

        Server               Comment
        ---------            -------

        Workgroup            Master
        ---------            -------

Lastly to access from Windows 7 i.e. to map:

Apply the following rules to the /etc/sysconfig/iptables firewall

restart the iptables

service iptables restart

-A INPUT -p tcp -m state --state NEW -m tcp --dport 137 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 138 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 139 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 445 -j ACCEPT


[root@rhel-6 ~]# smbclient  //142.88.100.106/samba-demo -U samba-user
Enter samba-user's password:
Domain=[RA-DEMO] OS=[Unix] Server=[Samba 4.0.0rc4]
smb: \> ls
  .                                   D        0  Tue Mar 25 16:11:28 2014
  ..                                 DR        0  Tue Mar 25 16:10:09 2014
  This_is_the_RHEL6_server            A       85  Tue Mar 25 16:35:08 2014
  .mozilla                           DH        0  Mon May 20 05:32:55 2013
  .bash_profile                       H      176  Wed Aug 29 04:19:40 2012
  .gnome2                            DH        0  Wed Jul 14 08:55:40 2010
  .bashrc                             H      124  Wed Aug 29 04:19:40 2012
  .bash_logout                        H       18  Wed Aug 29 04:19:40 2012
  Axway_-_Axway_SecureTransport on vmware.pdf      A    85952  Thu Jul 18 09:42:30 2013

                52008 blocks of size 524288. 17385 blocks available
smb: \>

Now map the drive for samba share: see the screen shot:

SSH : pass wordless login.

[rajusa10@RHEL-6 ~]$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/rajusa10/.ssh/id_rsa):
Created directory '/home/rajusa10/.ssh'.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/rajusa10/.ssh/id_rsa.
Your public key has been saved in /home/rajusa10/.ssh/id_rsa.pub.
The key fingerprint is:
7a:69:78:8a:b1:a8:1c:a7:30:6e:8d:58:f3:02:b9:7c rajusa10@RHEL-6
The key's randomart image is:
+--[ RSA 2048]----+
|                 |
|                 |
|                 |
|                 |
| .      S        |
|o o    o .       |
|==o+. o =        |
|*==E.+ =         |
|o=o.o .          |
+-----------------+


cat .ssh/id_rsa.pub | ssh rajusa10@dev01 'cat >> .ssh/authorized_keys'

[rajusa10@RHEL-6 ~]$ ssh dev01

|-----------------------------------------------------------------------------|

Last login: Thu Nov 21 11:47:21 2013 from gettoitwellorg.com
-bash-3.2$

New location for nproc limit in RHEL-6 --> "sudo: unable to change to runas uid: too many processes"

-bash-4.1$ cat /etc/security/limits.d/90-nproc.conf

# Default limit for number of user's processes to prevent
# accidental fork bombs.
# See rhbz #432903 for reasoning.

#*          soft    nproc     1024
*          soft    nproc     unlimited
root       soft    nproc     unlimited

linux wget equivalent in solaris ?

/usr/sfw/bin/wget http://download.com/software

list directories in GB starting with largest in the current working directory.

Here is the quick one:

cd to the current directory. Ex. cd /opt/apps/

du -hk | grep "[0-9][0-9]G" | sort -rn

thats it - 1 Cent :-)

Stale NFS file handle error after patching

login as root run fsck/lsof to check in case any files related
process are still hanging around.

In my case I did the same but I would get the Stale NFS file handle error.
searched for the man page .... and -l optin with umount did the trick.

[root@prodhost01 ~]# umount /export/brd_prod
umount: /export/brd_prod: device is busy
umount: /export/brd_prod: device is busy

umount -l /export/brd_prod

man umount

-l     Lazy  unmount. Detach the filesystem from the filesystem hierarchy now, and cleanup all references to the filesystem as soon as it is not busy anymore.
              (Requires kernel 2.4.11 or later.)

-----------------------------

sftp connection via non-standard port and Identity file

-bash-3.00$ sftp -oPort=5722 sftpuser@sftpfoobar-example.com

Connecting to -sftpfoobar-example...
The authenticity of host 'sftpfoobar-example.com (195.246.229.39)' can't be established.
RSA key fingerprint is 0b:1a:e7:6d:56:5b:ec:6f:999:5a:5b:ca:28:20:df.
Are you sure you want to continue connecting (yes/no)? ^C

Second way is using an identity file. This is in case you are connecting the server out of your domain and the same key dosen't work for all. In this case get the ssh-keygen -t rsa generate the key specific to the hostname.

[root@RHEL-6 ~]# ssh-keygen  -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa): /home/suser/.ssh/id_rsa_cluster1
Enter passphrase (empty for no passphrase):

provide the passphrase to add second security layer.

You can pass this option to the command - Now provide the passphrase and you should get the sftp prompt.

sftp -o Port=6022 -o IdentityFile=/home/suser/.ssh/id_rsa.pub sftpuser@sftpfoobar-example.com