By the default wordpress does not have support for changing the exact font, therefore copying and pasting a text made in Open Office or MS Word often places in the Post or Page wp edit fonts different from the default one set for articles. Hence some articles after being published on a wordpress blog show up with improper font and the only way to fix that is to change the font first in Open Office and then copy back to wordpress instead of simply being able to change the font from within the wordpress article.
To get around this problem, there is a nice plugin fckeditor-for-wordpress-plugin which aids wordpress with an awesome Word like edit functionalities. , downhload location for FCKEdit for WordPress is here
Here is a screenshot of the extra nice functionality the FCKEditor for wordpress providces.
Installing the plugin is like installing any other wordpress plugin and comes easily to:
debian:/~# cd /var/www/blog/wp-content/plugins
debian:/plugins# wget http://downloads.wordpress.org/plugin/fckeditor-for-wordpress-plugin.3.3.1.zip
...
debian:/plugins# unzip fckeditor-for-wordpress-plugin.3.3.1.zip
...
debian:/plugins# cd fckeditor-for-wordpress-plugin/
And further enabling the plugin from:
Plugins -> Inactive -> (Dean's FCKEditor For WordPress) Enable
fckeditor for wordpress will replace the default wordpress editor TinyMCE straight after being enabled. I’ve done also a mirror of the current version as of time of writting of this article, one can download the fckeditor for wordpress mirrored here Now really file editting inside wordpress admin panel is way easier and convenient 😉 Cheers
A combination of two wordpress caching plugins (Hyper Cache and Db Cachesignificantly improves the access times of a wordpress based blogs and websites.
Installing the two websites has drastically improved my blog opening times, so in my view having the two plugins on every wordpress install out there is a must! 🙂 The plugins installation is straight forward, here is how I installed them.
1. Installing Hyper Cache on WordPress
To install Hyper Cache all I had to do is download and enable the plugin, the plugin doesn’t require any configuration. I always love it when I don’t have to bother with reading configuration options and pondering for some 20 minutes on the plugin features, so in that perspective Hyper Cache in my view is a good alternative to WordPress Super Cache
Besides that WordPress Super Cache was having issues when enabled on few wordpress based websites I manage these days. For comparison Hyper Cache worked just great on all wordpress install I tried the plugin so far.
To install all I had to do is download the plugin unzip and enable it:
a. Download and unzip it
debian:/var/www/blog# wget http://downloads.wordpress.org/plugin/hyper-cache.zip
...
debian:/var/www/blog# cd wp-content/plugins
debian:/var/www/blog/wp-content/plugins# unzip hyper-cache.zip
b. Enable Hyper Cache plugin
To enable the plugin follow to standard plugin location;
Plugins -> Inactive -> Hyper Cache (Enable)
To enable the plugin follow to standard plugin location;
What Db Cache, does it does caching of last queries made to MySQL for specified time, so if the query has to be refetched again from wordpress’s php frontend the queries results are fetched straight for the memory. This decreases the load towards the MySQL server and increases the webpages loading time.
As the plugin page suggests it’s way faster than other html caching-plugins like WP-Cache or WP Super Cache
However, I think its still slower than using a combination of WP Super Cache’s alternativeHyper Cache and Db Cache . Combining this two could rise the webpage opening times according to some statisticonline at best cases up to 830% !! 😉 Let me proceed with how I did the install of Db Cache .
c. Make sure the permissions for Db Cache are correct
On Debian to enable Db Cache, the permissions should be changed for Apache to have a read/write permissions to plugin directory, on Debian to fix the permissions I used the commands:
On other GNU/Linux distributions the above commands (user and group) www-data:www-data, should be set to whatever user/group Apache is running with, on Slackware this would be nobody:nobody, on CentOS and RHEL it would be apache:apache.
In my recent question of looking for best ways to optimize my wordpress blog, as well as other wordpress based websites, I’m managing I’ve come across a great plugin called W3 Total Cache or W3TC as it’s widely known among wordpress geeks.
The full caching wordpress solution in face of W3TC is already actively deployed among many major wordpress powered websites, to name a few: stevesouders.com, mattcutts.com, mashable.com
I gave a try W3 Total Cache and was amazed about the rich caching functionality it provides. Having the W3TC plugin installed adds a whole menu on the left wordpress admin panel reading Performance , clicking on it shows a menu with thorough choices on numerous things which deal with the running of wordpress on the server. Here is a screenshot on the menus W3 Total Cache provides:
The plugin has support for html caching, sql caching, CDN, CSS and Javascript compress & minify etc. To test the plugin adequately I disabled HyperCache and Db Cache . My observations is that with W3TC wordpress renders php and the overall user experience and download times in wordpress are better. Therefore I’ll probably use only W3 Total Cache as a cacher for wordpress installs. Besides that I had some issues on some wordpress based websites with the Db Cache SQL caching. On these websites after enabling Db Cache, suddenly page edditing of the created existing pages started returning empty pages. This could be due to the fact that these wordpress based websites was customly tailered and many code was wiped out, however it could also be a Db Cache bug. So to conclude W3TC is the perfect solution for wordpress caching 😉
Since some time, I don’t know exactly where, after some updates of my WordPress running on a small server with FreeBSD 7.2. I’ve started getting a lot of Apache crashes. Often the wordpress scripts stopped working completely and I got only empty pages when trying to process the wordpress blog in a browser.
After a bunch of reading online, I’ve figured out that the cause might be PHP APC stands for Alternative PHP Cache .
I was not sure if the PHP running on the server had an APC configured at all so I used a phpinfo(); script to figure out if I had it loaded. I saw the APC among the loaded to show off in the list of loaded php modules, so this further led me to the idea the APC could be really causing the unexpected troubles.
Thus first I decided to disable the APC on a Virtualhost level for the domain where the crashing wordpress was hosted, to do I placed in the VirtualHost section in the Apache configuration /usr/local/etc/apache2/httpd.conf the following config directive:
php_flag apc.cache_by_default Off
These get me rid of the multiple errors:
PHP Warning: require_once() [function.require-once]: Unable to allocate memory for pool. in /usr/local/www/data-dist/blog/wp-content/plugins/tweet-old-post/top-admin.php on line 6
which constantly were re-occuring in php_error.log:
Further after evaluating all the websites hosted on the server and making sure none of which was really depending on APC , I’ve disabled the APC completely for PHP. To do so I issued:
echo 'apc.enabled = 0' >> /usr/local/etc/php.ini
Similarly on GNU/Linux to disable globally APC from PHP only the correct location to php.ini should be provided on Debian this is /etc/php5/apache2/php.ini .
Christ has born! Merry Christmas and Happy Holiday to all my readers!
The meaning of Merry Christmas comes from Christ Mass , the word has changed to (Christmas) through the years. The origins of the word comes from the western world and especially has a tight relatin with Latin language and the Roman Catholic Church.
In Eastern Orthodox Churches, we say Chestit Rojdestvo Hristovo , which translated to English is Happy Christ's Birth by this tring to put more accent on the real significance of the feast, which is Christ's birth. It's a pity nowdays many people forgot the real meaning of Merry Christmas but just celebrate without really realizing the deep spiritual meaning this two beautiful words contain. Our Bulgarian Orthodox Church will mark the Christ's birth with a Holy Liturgy early in Sunday's morning tomorrow 25th of December.
With these bright feast I wish to all my blog readers; A lot of Best of Health, Good Fortune, Loving Kindness, Hope, Faith, Love and Personal and Professional Success! May God bring in our hearts the Angels joy which saluted our Saviour Jesus Christ's birth 2011 years ago.
Many of us have already taken advantage of the powerful Rsync proggie, however I'm quite sure there are still people who never used rsync to transfer files between servers.. That's why I came with this small post to possibly introduce rsync to my blog readers. Why Rsync and not Scp or SFTP? Well Rsync is designed from the start for large files transfer and optimized to do the file copying job really efficient. Some tests with scp against rsync will clearly show rsync's superiority. Rsync is also handy to contiue copying of half copied files or backups and thus in many cases saves bandwidth and machine hdd i/o operations.
Where remoteuser@remotehost — is the the username and hostname of remote server to copy files to. /remote/directory — is the directory where the rsync copied files should be stored /local/directory — is the local directory from which files will be copied to remote directory
If not a preliminary passwordless ssh key (RSA / DSA) authentication is configured on remote server, the above command will prompt for a password otherwise the rsync will start doing the transfer.
Every now and then I had to tamper routing tables in Linux and every time I had to do it I forgot how I did it last time so finally I decided to put it on my blog and find how I can delete from Linux routing table easier
Deleting a record from a wrong routing table on Linux is a piece of cake basicly, here is an example:
linux:~# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.0.1 0.0.0.0 255.255.255.0 U 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 eth0
Let’s say this is the routing table and it’s incorrect as the routing through the node 169.254.0.0 should not be there. Here is how the routing through 169.254.0.0 can be deleted:
linux:~# /sbin/route del -net 169.254.0.0 netmask 255.255.0.0
Now here is the difference after deletion:
linux:~# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.0.1 0.0.0.0 255.255.255.0 U 0 0 0 eth0
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 eth0
If you want to delete the default gateway just use 0.0.0.0, e.g. -net 0.0.0.0 .. in above cmd example. This would delete default gateway record from routing table which by the way in routing tables is marked with the UG flag. Cheers 😉
Though using the | crontab – would work it has one major pitfall, I did completely forgot | crontab –OVERWRITES CURRENT CRONTAB! with the crontab passed by with the echo command. One must be extremely careful if he decides to use the above example as you might loose your crontab definitions permanently!
Thanksfully it seems there is another way to add crontabs non interactively via a script, as I couldn’t find any good blog which explained something different from the classical example with pipe to crontab –, I dropped by in the good old irc.freenode.net to consult the bash gurus there 😉
So I entered irc and asked the question how can I add a crontab via bash shell script without overwritting my old existing crontab definitions less than a minute later one guy with a nickname geirha was kind enough to explain me how to get around the annoying overwridding.
The solution to the ovewrite was expected, first you use crontab to dump current crontab lines to a file and then you append the new cron job as a new record in the file and finally you ask the crontab program to read and insert the crontab definitions from the newly created files. So here is the exact code one could run inside a script to include new crontab jobs, next to the already present ones:
The above definition as you could read would make the new record of */5 * * * * /root/myscript.sh >/dev/null be added next to the existing crontab scheduled jobs.
Now I’ll continue with my scripting, in the mean time I hope this will be of use to someone out there 😉
“Christ is risen from the dead, trampling down death by death, and on those in the tombs bestowing life!”
Happy Easter to all my beloved readers. In relation to the Greatest feast of all times I wish to all my readers a lot of good health, a lot of success in all good, and a lot of love. Rejoice for the Lord and Saviour of mankind has been risen!
In Jerusalem the Holy Fire has descended from Heaven. For all Unorthodox Christians, it’s important to note that the Holy Fire is the miracle confirming that the Christian Orthodox faith is the true ancient Christian faith in fulness!
Each year the Holy Fire descends from heaven and lights up the candle of the Patriarch of the Jerusalem Church. This only happens on the Orthodox Easter! This is without question a great miracle and a very graceful act by which God shows us he has not left us behind.
Here is a video you can watch, where you can see the miracle happening as well as a discussion, is really the miracle real:
Miracle of the Holy Fire in the Holy Sepulchre (Jesus’s Tomb) in Jerusalem – Easter 2011
Holy Light (Holy Fire) in Jerusalem: Proofs & Testimonies
During the three days in which, we the Christians celebrate the glorious Resurrection of our Lord and Saviour. It’s accepted that the ordinary “Hi” or “Hello” greeting we use daily, is ex-changed for “Christ is Risen!” 🙂
The word “Easter” used for the Resurrection 3 day feasts is also interesting as it comes from “Eastern” – (e.g. Eastern Orthodox Church) 🙂
