Category: Linux

Linux DD

Plug the USB Drive to PC , and check the disk:fdisk –l Assumtion : USB Disk at /dev/sdb Unmount the USBumount /dev/sdb*   Format the drivemkfs.vfat /dev/sdb –I DD the Image from ISO to USD Pendrive dd...

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Ubuntu freeze at swap

New Ubunt 14.04 Freeze at Swap. It is doing this because Ubuntu is trying to switch to a high resolution video mode for the console and your hardware isn’t cooperating. Fixing this while at the machine When Grub2 shows up:...

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Checking SSD Health

To check SSD health, need to install smartertools At Ubuntu or similar Distro (CentOS please use yum) #apt-get install smartmontools Check the Media_Wearout_Indicator # smartctl -a /dev/sda | grep Media_Wearout_Indicator To show...

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Linux Router – Network Table Overflow

To solve linux network table overflow issue, enlarge ARP table – edit /etc/sysconf.ctl net.ipv4.neigh.default.gc_thresh1 = 4096 net.ipv4.neigh.default.gc_thresh2 = 8192 net.ipv4.neigh.default.gc_thresh3 = 8192...

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