Mac OS X (10.6, 10.7, 10.8) Disk Utility repair failed
If Disk Utility is unable to repair hard drive, then try booting from any install DVD or USB drive. Then open terminal from the Utilities menu. When terminal opens, type: fsck_hfs -rf /dev/disk0s2 Your...
View ArticleExpand tar file from Linux command line
If you have a file.tar.gz that you need to expand from the command line, type the following: tar xfv file.tar.gz
View Articlersync via SSH
To copy files from one server to another via ssh: First login to the destination server and cd to the directory that you want to copy files into. Then type rsync -ave ssh...
View ArticleUse rm to delete a directory
To delete a file or directory in terminal (command line) use the rm command. Here is how to delete an entire directory: rm -dfr directory OPTIONS -d, –directory unlink FILE, even if it is a non-empty...
View ArticleUse terminal to delete all hidden files on a mac
I recently came across a client’s computer that had a tremendous number of hidden files that were causing problems. I tried many different ways to delete these, unsuccessfully. Unfortunately, there...
View ArticleEnable mounting of remotedisk remote CD/DVD on any unsupported mac
If you are like me, and your CD/DVD has stopped working on an old mac, you can use CD/DVD sharing to access the drive on another computer. Unfortunately, if your old computer originally had a CD/DVD...
View ArticleUpload files with ssh / scp in Linux
The following code will transfer myfile.zip to the folder ‘myfolder’ on the server: Code: scp /home/username/documents/myfile.zip username@myserver.com:/home/username/myfolder/ scp = Linux command to...
View ArticleDeleting/viewing mail in postfix queue (mailq)
Postfix stores mails in a queue before sending it. Postfix has a command line called ‘postsuper’ which can be used to delete unsent mail from the queue. Before removing mail from the queue it is good...
View ArticleFix “HTTP request length 134926 (so far) exceeds MaxRequestLen” error on...
If you get a 500 error in a webpage with apache webserver and fastcgi, take a look into the apache error.log file. This can either be the global error.log or the error.log of the website where you got...
View ArticleAmazon AWS EC2 Automatic Snapshot Daily Cron Job
There seems to be very poor documentation about setting up an automatic backup, daily snapshot with Amazon AWS EC2. I am currently running Ubuntu 14.04 with ISPConfig. Here is how to setup a daily cron...
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