yum: rpm is not signed

#yum install pgadmin3*

at last message, rpm not signed.


Resolution:-

edit /etc/yum.conf

replace gpgcheck=1 to gpgcheck=0

Save file then again run yum command.

Packages installed successfully.

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LVM mount steps (img + LVM)

[root@inf1basevm01 ~]# fdisk -lu /dev/VmImage/globe1

Disk /dev/VmImage/globe1: 26.8 GB, 26843545600 bytes
255 heads, 63 sectors/track, 3263 cylinders, total 52428800 sectors
Units = sectors of 1 * 512 = 512 bytes

Device Boot Start End Blocks Id System
/dev/VmImage/globe1p1 * 63 208844 104391 83 Linux
/dev/VmImage/globe1p2 208845 52420094 26105625 8e Linux LVM


[root@inf1basevm01 ~]# kpartx -av /dev/VmImage/globe1
add map globe1p1 : 0 208782 linear /dev/VmImage/globe1 63
add map globe1p2 : 0 52211250 linear /dev/VmImage/globe1 208845


[root@inf1basevm01 ~]# vgscan
Reading all physical volumes. This may take a while...
Found volume group "VolGroup00" using metadata type lvm2
Found volume group "VmImage" using metadata type lvm2
Found volume group "system" using metadata type lvm2


[root@inf1basevm01 ~]# vgchange -ay VolGroup00
2 logical volume(s) in volume group "VolGroup00" now active

[root@inf1basevm01 ~]# lvs
LogVol00 VolGroup00 -wi-a- 22.94G
LogVol01 VolGroup00 -wi-a- 1.94G

[root@inf1basevm01 mnt]# mount /dev/VolGroup00/LogVol01 /mnt
/dev/VolGroup00/LogVol01 looks like swapspace - not mounted
mount: you must specify the filesystem type

[root@inf1basevm01 mnt]# mount /dev/VolGroup00/LogVol00 /mnt
[root@inf1basevm01 mnt]# cd /mnt/
[root@inf1basevm01 mnt]# ls
app dev lib media net proc selinux tmp var
bin etc lib64 misc opt root srv u01
boot home lost+found mnt poweroff sbin sys usr


#######################################################################################
cd /var/lib/xen/images/
umount /mnt/sandbox/
lomount -diskimage B1web1.img -partition 1 /mnt/sandbox
vi /mnt/sandbox/grub/grub.conf
umount /mnt/sandbox/

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NTP Server setup + client setup

NTP Server

Steps to install NTP server.
# yum install ntp
Then sync server with 0.rhel.pool.ntp.org, to obtain accurate time data.
After that Open /etc/ntp.conf
Make sure the following line exits:
restrict default ignore
This will deny all access to any machine, server or client.

If this server is also going to provide time for other computers, such as PCs, other Linux servers and networking devices, then you'll have to define the networks from which this server will accept NTP synchronization requests. You do so with a modified restrict statement removing the noquery keyword to allow the network to query your NTP server. The syntax is:

restrict 10.65.136.128 mask 255.255.255.128 nomodify notrap

At last you need to server value like this
server 10.23.14.30
(my local time server all device sync with this
devices or you can use public server for date time.)


NTP Started

# chkconfig ntpd on
# service ntpd start

NTP – Client Setup
For client setup make sure rpm installed.
# yum install ntp
Open ntp.conf file and disable all public server just add a new line like below
server 10.65.136.154
Save the file and exit. The run ntpdate command to sync with your ntp server.
[root@tc1oltp1 ~]# ntpdate 10.65.136.154

29 Mar 21:39:03 ntpdate[15974]: adjust time server 10.65.136.154 offset 0.000039 sec

Now make sure services on at boot time.
[root@tc1oltp1 ~]# chkconfig ntpd on
[root@tc1oltp1 ~]# /etc/init.d/ntpd start

Starting ntpd: [ OK ]



Verifying NTP is Running

[root@tc1oltp1 ~]# pgrep ntpd
16099

Use the ntpq command to see the servers with which you are synchronized. It provided you with a list of configured time servers and the delay, offset and jitter

[root@tc1oltp1 ~]# ntpq -p
remote refid st t when poll reach delay offset jitter
==============================================================================
*tc1tools1.myserver LOCAL(0) 11 u 41 64 17 0.514 -0.473 0.461
LOCAL(0) .LOCL. 10 l 38 64 17 0.000 0.000 0.001



Firewall port open at server end add following lines

-A RH-Firewall-1-INPUT -m state --state NEW -p udp --dport 123 -j ACCEPT

save and restart iptables.

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Adobe Photoshop CS5 Error 16 , Adobe Photoshop CS5 Error 7

When you install Adobe Photoshop CS5 you might get some errors. In case you get one you will see a code and a little description. Is very important to remember your error code so you can fix the problem. In this article i will provide answer for 2 common and often errors.

Adobe Photoshop CS5 Error 16 

1. Choose Start > Computer > Organize > Folder And Search Options, and then click the View tab.
2. In the Advanced Settings section, deselect the Use Sharing Wizard (Recommended) option and click OK.
3. Navigate to \Program Files\Common Files\Adobe\.
4. Right-click the Adobe PCD folder and choose Properties.
5. In the Attributes section, deselect Read-Only, click Apply, and then click OK.
6. In the Security tab, make sure that Administrators and System are listed and permissions for security are set to Full Control. 

If not, do the following:
 

1. Click Edit.
2. If the User Account Control (UAC) elevation prompt appears, then follow the instructions to accept it.
3. Make the necessary changes.
7. Click Advanced.
8. In the Owner tab, click Edit and accept the UAC elevation prompt if it appears.
9. In the Change Owners Section, click Administrators.
10. Select the Replace Owner On Subcontainers and Objects option and then click Apply.
11. In the Permissions tab, click Edit and accept the UAC elevation prompt if it appears.
12. Select Replace Permission Entries On All Child Objects With Entries Shown Here That Apply To Child Objects.
13. Click OK and Yes until you have closed the FLEXnet Properties dialog box.
14. Launch your Adobe application.

 Adobe Photoshop CS5 Error 7

Unable to install Adobe CS5 getting error Exit Code 7. Conflict with Administrator rights.

SOLUTION: Enabled Default Admin Account and able to install Adobe CS5 and Acrobat Reader in default admin account.

Steps to enable Default Administrator Account: 

1. Type the following command:
net user administrator /active:yes 

2. You should see a message that the command completed successfully. Log out, and you’ll now see the Administrator account as a choice. 

3. Install Adobe Photoshop not by using double click or enter, instead of that do right click on Adobe Photoshop setup and choose "Run as administrator". 

4. Install the program and after disable Administrator Account. 

Steps to disable Default Administrator Account:

1. Make sure you are logged on as your regular user account, and then open an administrator mode command prompt as above. Type
the following command: net user administrator /active:no
2. The administrator account will now be disabled.

HOPE THIS HELP YOU ! Thank you for your visit ! 

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