RPM Segmentation Fault

While I was try to upgrade one of the RPM package on SuSE Linux Server, I’m getting an error message as below:

planetmy1:/var/spool/locks # rpm -Fvh http://server01/openssl-0.9.8a-18.26.x86_64.rpm Retrieving http://server01/openssl-0.9.8a-18.26.x86_64.rpm Preparing... Segmentation fault### ( 50%

In /var/log/messages, I can see similar error: kernel: rpm[21904]: segfault at 0000000000bbbfb0 rip 00002b13dd4c51ba rsp 00007fffcd8c0150 error 4

The solution is:
[root@planetmy1 ~]# rpm --rebuilddb
use –rebuilddb to rebuild the database indices from the installed package headers.
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May 31, 2009 · Filed Under Open Source, Tips

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Introduce Server Fault

While I was checking out twitter, I found a new site Server Fault!

Server Fault is a collaboratively edited question and answer site for system administrators and IT professionals – regardless of platform. It’s 100% free, no registration required.

Note: Server Fault public beta will begin May 25th.

Server Fault is for system administrators and IT professionals, people who manage or maintain computers in a professional capacity. If you are in charge of …

* servers
* networks
* many desktop PCs (other than your own)

… then you’re in the right place to ask your question! Well, as long as the question is about your servers, your networks, or desktops you support, anyway.

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May 27, 2009 · Filed Under Tips

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OpenVPN route issue

OpenVPN is a full-featured open source SSL VPN solution that accommodates a wide range of configurations, including remote access, site-to-site VPNs, Wi-Fi security, and enterprise-scale remote access solutions with load balancing, failover, and fine-grained access-controls.

I wouldn’t repeat how I setup OpenVPN from scratch which you can found tons of useful guide on Google. Here, I would like to share my OpenVPN routing issue and solution.

Setup details as show below:

SERVER:
LAN = 172.16.7.25X/255.255.0.0
WAN = 219.95.19x.1xx/255.255.255.252
VPN = 172.31.0.x/255.255.0.0

[root@planetmy ~]# view /etc/openvpn/server.conf
port 1194
proto udp
dev tun
ca keys/ca.crt
cert keys/server.crt
key keys/server.key
dh keys/dh1024.pem
server 172.31.0.0 255.255.0.0
ifconfig-pool-persist ipp.txt
push “route 172.16.0.0 255.255.0.0″
keepalive 10 120
comp-lzo
persist-key
persist-tun
status openvpn-status.log
verb 3
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May 15, 2009 · Filed Under Open Source, Tips

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How to clean EMC CX 3-80 Dirty Cache?

For the past weekend, it’s a really a nightmare for me. My office EMC Clariion CX3-80 storage box was crash(halt) and LUNs was not accessible for more than fourty over servers included Asia Pacific and Europe region.

The storage box forced to reset and found dirty cache on certain LUNs. Here I would like to share how to list and clear dirty cache.

List LUNs cache
# cd /opt/Navisphere/bin
./navicli -h 192.168.1.1 luncache -list
OR you can save the output into temporary location.
./navicli -h 192.168.1.1 luncache -list > /tmp/listluncache

Note: IP Address 192.168.1.1 is referring to your SPx controller IP Address.

Open /tmp/listluncache and search for word “YES”
# view /tmp/listluncache

For an example, you will see:
LOGICAL UNIT NUMBER 4912 LUN Offline (Cache Dirty Condition): YES

LOGICAL UNIT NUMBER 4913 LUN Offline (Cache Dirty Condition): YES
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May 13, 2009 · Filed Under How's To, Tips

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