Is bandwidth still relevant for web hosting?
The Numix Project received some web love lately, mentioned in last Sunday's Linux Action Show web episode, and later on It's F.O.S.S and probably elsewhere, for their announcement to release their own Linux distribution. As a result, their website is now down, with the server returning 500:
[email protected]:~$ curl -I numixproject.org
HTTP/1.0 500 Internal Server Error
...and displaying the message "Bandwidth Limit Exceeded". I would have guessed that with everything-as-a-service and the whole Cloud #!, bandwidth consumtion would have already become irrelevant.
I mean, there's enough BW to feed our amplification attacks ( 400Gbps on CloudFlare, 350Gbps on OVH), but not enough to host our websites? Does that not call for a revision of the model?
System V init
This is an unsorted list of links about System V init.
systemd
This is an unsorted list of links with content about systemd.
access-class (Cisco Command)
The access-class
command applies an existing access list on a
line, such as VTY and CON lines. The equivalent command for
interfaces is ip access-group
.
default interface (Cisco Command)
The default-interface
command removes configuration from an interface,
and returns it to its defaults. Note that by default, interfaces are not
shutdown.
show vtp status (Cisco)
Notes on the show vtp status
command on Cisco devices.
The value of configuration last changed by
shows the source of the
most recent updates to the Vlan list.
show vlan (Cisco)
show vlan
lists the Vlans and the ports on which each is configured.
Trunk ports don't show up in this list.
Vlans 1002, 1003, 1004 and 1005
In the output of the show vlan
command, Vlans 1002, 1003, 1004 and
1005 are listed. Those exist by default to ensure interoperation and
backwards compatibility of new devices with old and largely deprecated
networks. For example, Vlans 1002 and 1004 were used on an old fiber
optics type of network, whereas Vlan 1003 was used in token-ring
networks. In the status
column, those networks show up as either
act/unsup
or active/unsupported
, since most new switches don't even
have ports to use on those old types of networks any more.
Zenoss: Add a device to a Group with ZenDMD
As user zenoss
(or whatever user your Zenoss application runs as), run zendmd
, and:
Device = find('My Awesome Server')
Device.addDeviceGroup('My Wonderful Group')
commit()
This will make the device named My Awesome Server
a member of the group named My Wonderful Group
.
Συντομεύσεις πληκτρολογίου σε συσκευές Cisco
Συντόμευση | Περιγραφή |
---|---|
CTRL+P | [previous] εμφάνιση προηγούμενης εντολής |
CTRL+N | [next] εμφάνιση επόμενης εντολής |
CTRL+B | [back] μετακίνηση του δρομέα κατά ένα χαρακτήρα προς τα πίσω |
CTRL+F | [forward] μετακίνηση του δρομέα κατά ένα χαρακτήρα προς τα μπροστά |
ESC+B | [back] μετακίνηση του δρομέα κατά μία λέξη προς τα πίσω |
ESC+F | [forward] μετακίνηση του δρομέα κατά μία λέξη μπροστά |
CTRL+A | μετακίνηση του δρομέα στην αρχή της εντολής |
CTRL+E | [end] μετακίνηση του δρομέα στο τέλος της εντολής |
CTRL+D | [delete] διαγραφή του επιλεγμένου χαρακτήρα |
BACKSPACE | διαγραφή του προηγούμενου από τον επιλεγμένο χαρακτήρα |
CTRL+W | [word] διαγραφή μιας λέξης |
CTRL+U | διαγραφή ολόκληρης της γραμμής |