LEAF VLAN Interface 設定方式

auto eth1.6
iface eth1.6 inet dhcp
        vlan-raw-device eth1
#iface eth1.6 inet static
        #address 192.168.1.254
        #netmask 255.255.255.0
        #broadcast 192.168.1.255

zebra + ripd shorewall 設定

/etc/shorewall/rule 加入

ACCEPT    fw    loc    igmp
ACCEPT    loc    fw    igmp
ACCEPT    fw    loc    udp
ACCEPT    loc    fw    tcp    2601
ACCEPT    loc    fw    tcp    2602

sed 去除 HTML TAG

sed -e 's/<[^>]*>/ /g'|sed '/^$/d')

wget 下載 Google Drive 檔案

f=filename
id=1234567567567

url="https://docs.google.com/uc?export=download&id=${id}";
cookies=$(mktemp);

x=$(wget -q --save-cookies $cookies --keep-session-cookies --no-check-certificate $url -O-);
url2=https://docs.google.com$(echo $x|grep -Po 'uc-download-link" [^>]* href="\K[^"]*' | sed 's/\&/\&/g');

wget --load-cookies $cookies $url2 -O "$f";

Linux: Kerberos authentification against Windows Active Directory

修改 /etc/krb5.conf 內容

[libdefaults]
      default_realm = domainname.local
      default_tgs_enctypes = arcfour-hmac-md5 des-cbc-crc des-cbc-md5
      default_tkt_enctypes = arcfour-hmac-md5 des-cbc-crc des-cbc-md5

Debian 9 netinstall 支援 pxe + tftp 安裝

iso=debian-9.9.0-amd64-netinst.iso
odir=/root/o

mnt=$(mktemp -d);
mkdir ${mnt}/iso ${mnt}/initrd;
losetup /dev/loop1000 ${iso};
mount /dev/loop1000 ${mnt}/iso;
cd ${mnt}/initrd;
zcat ${mnt}/iso/install.amd/initrd.gz|cpio -i;
cp -rp ${mnt}/iso cdrom/

cp $mnt/iso/install.amd/vmlinuz ${odir}/vmlinux
find .|cpio -o -H newc|gzip -9 >${odir}/initrd
cd ${odir};
umount ${mnt}/iso;
losetup -d /dev/loop1000;
rm -rf $mnt

udevadm rule 筆記

KERNEL=="sd[a-z]*", ENV{DEVTYPE}=="disk", ENV{ID_PATH_TAG}=="pci-0000_00_1f_2-ata-1", NAME="sda"
KERNEL=="sd[a-z]*", ENV{DEVTYPE}=="disk", ENV{ID_PATH_TAG}=="pci-0000_00_1f_2-ata-2", NAME="sdb"
KERNEL=="sd[a-z]*", ENV{DEVTYPE}=="disk", ENV{ID_PATH_TAG}=="pci-0000_00_1f_2-ata-3", NAME="sdc"

KERNEL=="sd[a-z]*", ENV{DEVTYPE}=="disk", ENV{ID_ATA_SATA}=="1", SYMLINK+="sata0/$env{ID_PATH_TAG}"