Many of our blog readers ask if we offer tuning services and support remote server management. At this time we do not offer server management services and we do not offer blog tuning either. However, from time to time we work with a nice company called LinuxAdmin guys and they do high-load and critical blog set-up,  configuration,  load balancing, management and of course full optimization. So if you are looking for a quality and very affordable remote server management or WordPress blog hosting and management company – contact LinuxAdmin and I am sure you guys can work something out.

Three years ago I was very skeptic about blogs. I didn’t enjoy reading blog posts, I usually went to other sites if I spot a blog. After some time, I don’t even remember when, but I published my first blog and from the very first day I started to like blog sites. Particularly, WordPress based blogs.

Nowadays, I suggest using WordPress platform for new blogs to my friends and other guys I know. Very stable, easy to set-up platform and very important – actively developed with thousands of pretty cool plugins. It’s free – pretty cool, eh?

I manage quite… Read the rest of this entry »

Many website owners are dreaming about hundreds of thousands of web visitors and thousands in ad profits, but will your web site handle the load and keep up the file serving? Probably not.

Digg frontpage listing usually sends 120.000  to 170.000 web visitors in two to three hours. It depends for how long you are listed on Digg’s frontpage and what is the topic.  In over 95% of cases this will probably be too much for simple dedicated server – if you are hosting WordPress blog with some plugins activated (that require some extra load) and without tuning the server… Read the rest of this entry »

One of the best solutions for streaming Flash video nowadays is Nginx. It’s super fast, lightweight and does easily support thousands of concurrent connections without taking up much resources.

By default flash streaming is not activated and you need to turn it on in compilation process. You enable flash streaming by:

./configure –with-http_flv_module …(add other options here)

and then add to nginx.conf the following settings:

location ~ .flv$ {
flv;
}

Nginx can easily push hundreds of megabits per second so make sure your upstream can support it and you have deep pockets for bandwidth expenses :)

We got an email last night from a fellow reader asking what tcp_fin_timeout and tcp_keepalive_time we are usually using from small to medium blogs.

At this time, we keep the following settings:

net.ipv4.tcp_fin_timeout = 60
net.ipv4.tcp_keepalive_time = 60

Ok folks, I have some great news for you – we just spot a promising wordpress caching plugin named 1 Blog Cacher.  From the list of features it looks very awesome including the file and directory structure emulation, thus you can easily remove cached directories or file cache that you require. This is a nice feature if you are using  scripts  (e.g. you want to wipe out all cache files for /2006/ directory).

Expire header option is also a very nice feature – you have full control when to expire the cache.

I am sure we will use… Read the rest of this entry »

Getting the following bug…. bad luck :(
Running Centos, 32 bit

BUG: warning at drivers/net/e1000e/ich8lan.c:361/e1000_acquire_swflag_ich8lan() (Not tainted)
[] e1000_acquire_swflag_ich8lan+0x6e/0×86 [e1000e]
[] e1000e_read_kmrn_reg+0×10/0x4e [e1000e]
[] e1000e_gig_downshift_workaround_ich8lan+0×23/0×66 [e1000e]
[] e1000_intr_msi+0×46/0xd4 [e1000e]
[] handle_IRQ_event+0×23/0×49
[] __do_IRQ+0×84/0xd6
[] do_IRQ+0×93/0xae
[] common_interrupt+0x1a/0×20
[] e1000e_mc_addr_list_update_generic+0×95/0×148 [e1000e]
[] e1000_mc_addr_list_update+0xe/0×12 [e1000e]
[] e1000_set_multi+0xcd/0xd5 [e1000e]
[] __dev_mc_upload+0x1d/0x1e
[] dev_mc_upload+0×28/0x3b
[] dev_open+0×44/0×62
[] dev_change_flags+0×47/0xe4
[] devinet_ioctl+0x24e/0×542
[] sock_ioctl+0×191/0x1b3
[] sock_ioctl+0×0/0x1b3
[] do_ioctl+0x1c/0x5d
[] vfs_ioctl+0x24a/0x25c
[] sys_ioctl+0×48/0x5f
[] syscall_call+0×7/0xb
=======================
pci0000:00: eth0: Link is Up 100 Mbps Full Duplex, Flow Control: RX
pci0000:00: eth0: 10/100 speed: disabling TSO

In a previous post server virtualization vs dedicated server we discussed about increasing availability using virtual servers – hypervisors that offer Live migration in case of one virtual server failure.

Citrix has released free