To have idea whats going on with internal-sftp when you have chrooted users, this is the way how to enable logging for internal-sftp for RedHat 7 or CentOS 7.
As UTF8 encoding is by default installed/enabled in RedHat Enterprise Linux 6.5 / CentOS and similar distros, it drives me mad to have weird line characters in terminal when I logged in via SecureCRT/Putty due UTF-8 encoding. Read more…
Chinese very own Quad core tablet iFIVE mini3 got unofficial Android 4.4 KitKat firmware. Its for “early adopters” of course. Enjoy. More info coming. Rockchips ROCK 😉
Original post on 5fans forum is here: http://www.5fans.com.cn/thread-90490-1-1.html
Firmware download (china site/slow): http://pan.baidu.com/s/17XQ9F
Sugarsync copy: SugarSync folder
Proper way of disabling IPv6 subsytem in RedHat Linux 6 / CentOS 6 (dont unload modules or so)
in /etc/sysctl.conf : net.ipv6.conf.all.disable_ipv6 = 1
in /etc/sysconfig/network : NETWORKING_IPV6=no
in /etc/sysconfig/network-scripts/ifcfg-eth0 : IPV6INIT=”no”
disable iptables6 – chkconfig –level 345 ip6tables off
PS: if you have more eth interfaces, use brain 😉
just summary 😉
- fill with zeros empty space in runing VM OS
- Windows – SDelete from Sysinternal LINK
- Linux – fill up each mount point/partition with command
dd if=/dev/zero of=ZEROFILE bs=1000000 ; rm -f ZEROFILE
- Check real size of allocated data in VM
du -h MyVM.vmdk
- From ESX shell , run command to shrink vmdk disk (shutdown VM first)
vmkfstools --punchzero MyVM.vmdk
- Check real size of allocated data in VM after (should be less)
du -h MyVM.vmdk
- log off
- If not Thin provisioned disk, use another post 😉
So, in previous article I cleanup Linux virtual machine , zeroed all empty space. Thick file is 42 GB, lets see how it big I can make it.
I have thick provisioned server, and I need move it and shrink it. As Thick option provides flat file of full size , even if OS is few GB, I have full size vmdk file ;( which is harder to copy around. Thin provisioned vmdk disk is possible shrink via ESX shell command ( vmkfstools –punchzero *.vmdk) but what to do if disk is in Thick state ? Its possible, but little bit more complicated.
Excellent post to explain in depth dafuq – http://blogs.vmware.com/vsphere/2012/03/thin-provisioning-whats-the-scoop.html
Trying brute force login to Dovecot IMAP server is happenning, log is filling up ;(
Lets block it 😉
When you need to have proxy connection available to whole system, so dont bother with settings for firefox, yum proxy and similar, its simple as just plain file 😉
Some collection on various find tasks I experienced from time to time. Find is powerfull tool, often overlooked, but its lifesaver. Enjoy, if you have something more, please, share in comments.