Large is a variable Term, 700 GB is large for me, while it could be a small peace for others.
Assuming you need to count the lines … this simple Task can take minutes !
[user@host /tmp]$ du -sh bigfile
745G bigfile
if you need to count the lines, use the wordcount command and you get the exact number … but you have to wait for minutes, depending in your disk subsystem and the file size of course
add this line to root’s crontab
* * * * * env > /root/cronenv
env - $(cat /root/cronenv) /bin/sh
./script_with_env_problems.sh
and check it’s output …
sha256: de1667fb4003135420244f48280d72e03d7559b675ab6b4a9c020b0725866525
apt-get -y update
apt-get -y upgrade
apt-get -y distupgrade
apt-get -y install vim
apt-get install apt-transport-https
echo "deb [trusted=yes] https://packages.netsec.inf.ethz.ch/debian all main" | tee /etc/apt/sources.list.d/scionlab.list
apt-get update
apt-get install scionlab
scionlab-config --host-id=1fcf8axxxxxxxxxxxxxxxxxxxxxxxxxx --host-secret=4ef93cxxxxxxxxxxxxxxxxxxxxxxxxxx
root@scionlab:~# ip address show dev tun0
4: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN group default qlen 100
link/none
inet 10.1.1.52/16 brd 10.1.255.255 scope global tun0
valid_lft forever preferred_lft forever
inet6 fe80::aa8a:c135:f627:bcff/64 scope link stable-privacy
valid_lft forever preferred_lft forever
root@scionlab:~# grep Interfaces -A15 /etc/scion/gen/ISD*/AS*/endhost/topology.json
"Interfaces": {
"1": {
"Bandwidth": 1000,
"ISD_AS": "17-ffaa:0:1107",
"LinkTo": "PARENT",
"MTU": 1472,
"Overlay": "UDP/IPv4",
"PublicOverlay": {
"Addr": "10.1.1.52",
"OverlayPort": 50000
},
"RemoteOverlay": {
"Addr": "10.1.0.1",
"OverlayPort": 50229
}
}
root@scionlab:~# systemctl list-dependencies scionlab.target
scionlab.target
● ├─scion-border-router@17-ffaa_1_d85-1.service
● ├─scion-control-service@17-ffaa_1_d85-1.service
● ├─scion-daemon@17-ffaa_1_d85.service
● └─scion-dispatcher.service
root@scionlab:~# scmp echo -remote 20-ffaa:0:1404,[0.0.0.0]
Using path:
Hops: [17-ffaa:1:d85 1>230 17-ffaa:0:1107 1>4 17-ffaa:0:1102 3>4 17-ffaa:0:1108 2>8 17-ffaa:0:1101 3>2 20-ffaa:0:1401 6>1 20-ffaa:0:1402 2>1 20-ffaa:0:1404] MTU: 1472, NextHop: 127.0.0.1:30042
176 bytes from 20-ffaa:0:1404,[0.0.0.0] scmp_seq=0 time=258.282ms
176 bytes from 20-ffaa:0:1404,[0.0.0.0] scmp_seq=1 time=259.515ms
176 bytes from 20-ffaa:0:1404,[0.0.0.0] scmp_seq=2 time=264.142ms
176 bytes from 20-ffaa:0:1404,[0.0.0.0] scmp_seq=3 time=257.675ms
root@scionlab:~# scmp tr -remote 21-ffaa:0:1501,[0.0.0.0]
Using path:
Hops: [17-ffaa:1:d85 1>230 17-ffaa:0:1107 1>4 17-ffaa:0:1102 3>4 17-ffaa:0:1108 2>8 17-ffaa:0:1101 3>2 20-ffaa:0:1401 4>3 21-ffaa:0:1501] MTU: 1472, NextHop: 127.0.0.1:30042
0 17-ffaa:1:d85,[127.0.0.1] IfID=1 474µs 460µs 303µs
1 17-ffaa:0:1107,[192.33.93.195] IfID=230 9.533ms 10.099ms 9.75ms
2 17-ffaa:0:1107,[192.33.93.195] IfID=1 10.152ms 10.12ms 9.651ms
3 17-ffaa:0:1102,[129.132.121.164] IfID=4 11.151ms 11.874ms 9.675ms
4 17-ffaa:0:1102,[192.33.92.68] IfID=3 10.419ms 11.829ms 11.886ms
5 17-ffaa:0:1108,[195.176.0.11] IfID=4 14.57ms 11.859ms 11.739ms
6 17-ffaa:0:1108,[195.176.28.157] IfID=2 16.276ms 15.704ms 15.417ms
7 17-ffaa:0:1101,[193.247.172.154] IfID=8 15.862ms 16.496ms 16.473ms
8 17-ffaa:0:1101,[193.247.172.130] IfID=3 22.882ms 23.789ms 22.081ms
9 20-ffaa:0:1401,[134.75.250.114] IfID=2 252.212ms 252.403ms 253.067ms
10 20-ffaa:0:1401,[134.75.250.114] IfID=4 253.937ms 251.94ms 251.649ms
11 21-ffaa:0:1501,[202.255.44.48] IfID=3 314.05ms 313.705ms 313.292ms
12 21-ffaa:0:1501,[0.0.0.0] 314.419ms 313.534ms 314.605ms
sha256: 0719a8bbc818ec97a796c90b7de0027ee6905fd5d889d6eb6b500b519b968dcc
sudo apt-get install vlan
root@mint:~# sudo modprobe 8021q
root@mint:~# ifconfig
ens19: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.10.18.83 netmask 255.255.255.0 broadcast 10.10.18.255
inet6 2001:db8:1:2:9506:5fcd:1c61:1279 prefixlen 64 scopeid 0x0<global>
inet6 2001:db8:1:2:a9:c50b:1348:1ec6 prefixlen 64 scopeid 0x0<global>
inet6 2001:db8:1:2:e064:b0ec:a08f:7fd8 prefixlen 64 scopeid 0x0<global>
inet6 2001:db8:1:2:a015:7ec:eef0:1a75 prefixlen 64 scopeid 0x0<global>
inet6 2001:db8:1:2:a028:b890:ffe8:5231 prefixlen 64 scopeid 0x0<global>
inet6 2001:db8:1:2:c80:addb:1273:95d5 prefixlen 64 scopeid 0x0<global>
inet6 fe80::9cc2:b22d:cc15:2946 prefixlen 64 scopeid 0x20<link>
ether 4e:e5:10:00:06:83 txqueuelen 1000 (Ethernet)
RX packets 181 bytes 58337 (58.3 KB)
RX errors 0 dropped 7 overruns 0 frame 0
TX packets 271 bytes 48413 (48.4 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 138 bytes 13723 (13.7 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 138 bytes 13723 (13.7 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
root@mint:~# vconfig add ens19 158
Added VLAN with VID == 158 to IF -:ens18:-
root@mint:~#
root@mint:~# ip addr add 100.60.100.83/24 dev ens19.158
root@mint:~#
root@mint:~# ip link set up ens19.158
root@mint:~#
sudo su -c 'echo "8021q" >> /etc/modules'
/etc/network/interfaces
auto ens19.158
iface ens19.158 inet static
address 100.60.100.83
netmask 255.255.255.0
vlan-raw-device ens19.158
up route add -net 10.0.0.0 netmask 255.0.0.0 gw 100.60.100.1
sha256: e69d61613b45307405014943049154d70c8cf140d2a3bcf5bbf7679fbefa798f
Everybody knows sudo … right ? but the openbsd guys hacked a small and secure replacement called doas …
simple, secure and clever
here a good and quick tutorial
An introduction on Vultr, the Source Code on Github and the Man Page
On OpenBSD, it’s already in the Base System and no need to install anything.
On Linux, for Example, you have to add the Package
… mit freundlicher genehmigung von Kumpel Marc :)
#!/usr/bin/env bash
FILE="$HOME/scripts/excuses"
# Linux or BSD ? nf points to the right binary
which numfmt > /dev/null 2>&1 && nf=$(which numfmt) || nf=$(which gnumfmt);
# Linux or BSD ? gs points to the right binary
which shuf > /dev/null 2>&1 && gs=$(which shuf) || gs=$(which gshuf);
if [ ! -e "$FILE" ]; then
echo ""
echo "$FILE does not exist"
echo "##############################################"
command -v curl >/dev/null 2>&1 || { echo >&2 "Holy cow! You don't even have curl, get lost!"; echo ""; exit 1; }
mkdir -p $HOME/scripts/
curl -o $FILE https://pages.cs.wisc.edu/~ballard/bofh/excuses
echo "##############################################"
fi
keep () {
clear;
echo "If you are reading this..." && echo "Congratulations, you are alive."
echo ""
echo "You are stuck on the following planet:" `hostname`
echo "It has been" `date +%s | $nf --g` "seconds since January 1st 1970, this is quite a while..."
echo ""; echo "Your current excuse is:"; $gs -n 1 $HOME/scripts/excuses
}
while :
do
keep
sleep 30
done
./keepalive.sh
If you are reading this...
Congratulations, you are alive.
You are stuck on the following planet: puffy201.planet
It has been 1658870361 seconds since January 1st 1970, this is quite a while...
Your current excuse is:
Power Company having EMP problems with their reactor
sha256: 5de0afbcacd56dbcaede593a6f243a3f46e4d94754683646d57e00f3c7840eca
Here a few Commands to figure out the Status of CEPH
ceph status
ceph osd status
pveceph lspools
ceph pg dump
vzdump 777 --dumpdir /mnt/backup --mode snapshot
qmrestore /mnt/backup/vzdump-qemu-777.vma 777
Intel Nuc I5, 32GB RAM, 500GB SSD
root@nuc:~# pveperf
CPU BOGOMIPS: 36799.44
REGEX/SECOND: 3927398
HD SIZE: 93.99 GB (/dev/mapper/pve-root)
BUFFERED READS: 522.34 MB/sec
AVERAGE SEEK TIME: 0.11 ms
FSYNCS/SECOND: 1588.49
DNS EXT: 49.40 ms
DNS INT: 0.65 ms (planet)
sha256: 92b20e0a803b2e3c9a987fe89c259ac9bd069b22732d93f80d0626fae15e733b