Posted by TechFiz on December 10, 2009
Virtual Ethernet devices of the OpenVZ VM’s inside ProxMox is connected to a bridge. After installing ProxMox and creating virtual nodes, I found that public ips allocated inside VM’s were not reachable to world. A quick fix for this issue is to ensure that Proxy ARP and IP Forwarding is configured fine. Check these lines: [...]
Posted by TechFiz on June 28, 2009
While working with APF on servers, you might normally get to see the following error, # apf -r apf(2042): {glob} flushing & zeroing chain policies apf(2042): {glob} firewall offline apf(3179): {glob} activating firewall apf(3284): {glob} unable to load iptables module (ip_tables), aborting. apf(3179): {glob} firewall initalized apf(3179): {glob} fast load snapshot saved Your kernel is [...]
Posted by TechFiz on June 28, 2009
Unable to add a new block for an ip via CSF? Iptables modules are not loaded into your server’s kernel. If you’re getting the following error on a OpenVZ VPS server: iptables: No chain/target/match by that name ACCEPT udp opt — in !lo out * 0.0.0.0/0 -> 0.0.0.0/0 state NEW udp dpt:953 Contact the DC [...]
Posted by TechFiz on June 9, 2009
A brilliant software engineer, Founder of LxLabs.com, creator of HyperVM – optimized virtualization technology which runs on both Xen and OpenVZ, “Host In a Box” solution LxAdmin/Kloxo for Web hosting companies, server owners, resellers – K.T Ligesh(32) commited suicide last night (8th June,2009) at his residence located in H.S.R Layout, Bangalore. Yesterday night I was [...]
Posted by TechFiz on December 14, 2008
If you find that the /etc/hosts file getting over written (I have found this happening in Virtuzzo and HyperVM servers already) ensure that you add the additional entries above the following comment line which you see in /etc/hosts file. # Auto-generated hostname. Please do not remove this comment.
Posted by TechFiz on October 31, 2008
Out of memory? Did you upgrade your OS recently? Then carefully have a look at ps -auwx output for memory consumption. Today I found that initscripts package owned minilogd was eating up almost 70% of the server resources on a VPS running on OpenVZ virtualization. After reading a bit about it on the internet I [...]