Archive for category Linux

VMware Player (Linux), Add NIC to Host

It is quite difficult to find information on Internet talking about how to configure NIC for Linux VMware Player.
After studying installed files, I found out it has a command called “vmware-netcfg” which stores in “/usr/lib/vmware/bin“.

We can use this program to configure which NIC will be used for Virtual Machine networking.

VN:F [1.9.18_1163]
Rating: 0.0/5 (0 votes cast)
VN:F [1.9.18_1163]
Rating: 0 (from 0 votes)
Total views: 33,020 views

, , ,

No Comments

Review: 3ware 9650SE-2LP

Review: 3ware 9650SE-2LP

I just bought 3ware 9650SE-2LP for my Linux box.

I have tested CentOS 5.3 (x64) and Fedora 8 (x64). Both Linux default kernel included driver already.

It is very easy to use and configure.

My comments:
1. Easy to install for Linux
2. CLI for Linux is good
3. Performance is good
4. Firmware upgrade is easy

Overall comment is very good for Linux.

Reference:
http://www.3ware.com/products/serial_ata2-9650.asp

VN:F [1.9.18_1163]
Rating: 0.0/5 (0 votes cast)
VN:F [1.9.18_1163]
Rating: 0 (from 0 votes)
Total views: 10,158 views

, ,

No Comments

Linux: Disable check disk at start up

E.g. Disable check disk for /dev/sda1

tune2fs -c 0 -i 0 /dev/sda1

Edit /etc/fstab and modify last field to 0 instead of 1 or 2

/dev/sda2                /                       ext3    defaults       1 0
/dev/sda1             /boot                   ext3    defaults        1 0
VN:F [1.9.18_1163]
Rating: 0.0/5 (0 votes cast)
VN:F [1.9.18_1163]
Rating: 0 (from 0 votes)
Total views: 4,063 views

,

No Comments

Fedora Live CD login as root

Fedora Live CD Default login user is “liveuser”, when I use Live CD for system recovery or maintenance purpose, I will face access denied problem while accessing to different folders.

Following is a way for logging as root by using Fedora Live CD. (I tested this approach on Fedora Live CD 10)

1. Ctrl+Alt+F2
2. Login as root without password
3. cd /etc/pam.d/
4. vi gdm
5. Comment the following line
#auth       required    pam_succeed_if.so user != root quiet

6. save the change
7. Back to the graphical login screen.
8. You can use root as login user now.

Enjoy it !!

VN:F [1.9.18_1163]
Rating: 3.7/5 (10 votes cast)
VN:F [1.9.18_1163]
Rating: +1 (from 1 vote)
Total views: 45,443 views

, , ,

1 Comment

Check USB harddisk mounted or not in Linux

Today, I am checking how to use a script to check if USB hard disk is mounted or not in Linux.

After doing research, I developed the following script to check “mount” status.

1. Create a file chk_mount.sh.
2. chmod 755 chk_mount.sh
3. Add the follow content to “chk_mount.sh”.

if mount | grep sdb1 > /dev/null
then
        echo "sdb1 mounted"
else
        echo "No sdb1"
        mount /dev/sdb1 /backup
fi

If sdb1 is mounted, there is no action will be taken.
If sdb1 is not mounted, /dev/sdb1 will be mounted automatically.

You can put this script in cron job and check  mount status regularly.

VN:F [1.9.18_1163]
Rating: 0.0/5 (0 votes cast)
VN:F [1.9.18_1163]
Rating: 0 (from 0 votes)
Total views: 4,228 views

,

No Comments

How to check disk usage in Linux?

1. Login into Linux

2. Run the following command

3. Type df -h in command prompt

Linux df

VN:F [1.9.18_1163]
Rating: 0.0/5 (0 votes cast)
VN:F [1.9.18_1163]
Rating: 0 (from 0 votes)
Total views: 2,647 views

,

No Comments

How to check top level folder usage in Linux?

1. Login into Linux

2. cd /

3. du -h –max-depth=1

Linux du

VN:F [1.9.18_1163]
Rating: 0.0/5 (0 votes cast)
VN:F [1.9.18_1163]
Rating: 0 (from 0 votes)
Total views: 2,846 views

,

No Comments

How to bypass greylist in ESVA?

How to bypass greylist in ESVA?

I found that a lot of people looking for a way to disable greylist in ESVA.

Here is a workaround to handle greylist setting.

1. Login into ESVA console.

2. Edit file /etc/sqlgrey/clients_fqdn_whitelist.local
esva_01

3. Add *.* to this file. Save it.
esva_02

4. service sqlgrey restart

I tried this setting in ESVA 1.7 and ESVA2

VN:F [1.9.18_1163]
Rating: 4.7/5 (3 votes cast)
VN:F [1.9.18_1163]
Rating: +1 (from 1 vote)
Total views: 20,231 views

, ,

No Comments