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 Yearling
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Mar
19
awarded  Yearling
Feb
23
comment How to tell whether a serial connection is “established”?
Thank you! I'll read into it and will give it a shot. Oh, while we are talking ... Is it possible that the other side has (unbeknownst to me) RTS/CTS and/or DTR/DSR enabled, while my side has not? Or would comms fail in that scenario?
Feb
22
asked How to tell whether a serial connection is “established”?
Dec
8
comment Under what circumstances is TCP-over-TCP performing significantly worse than TCP alone (2014)?
Only if the 'outer' connection is subject to a certain degree of latency or packet loss in the first place. I have plenty of SSH sessions over TCP-based VPNs, and many work just fine with no noticeable lag.
Nov
26
comment Override MAILTO for a single crontab entry
I tested it with the ICS/Vixie cron that is shipped with Ubuntu 14.04 ("3.0pl1-124ubuntu2"), and it works well there.
Nov
19
comment Nagios configuration syntax: Multiple directives per line?
I clarified the Icinga version we use (1.x)
Nov
19
revised Nagios configuration syntax: Multiple directives per line?
Clarified versions
Nov
19
comment Nagios configuration syntax: Multiple directives per line?
Another reason to upgrade from Icinga1 to Icinga2. It's on our roadmap ... Thx
Nov
19
comment Nagios configuration syntax: Multiple directives per line?
Not the answer i hoped for, but thx. In my specific case I'll probably forgo intermediate config files and go all the way: Re-generate the config files from config management templates (saltstack) after each change.
Nov
19
awarded  Scholar
Nov
19
accepted Nagios configuration syntax: Multiple directives per line?
Nov
18
asked Nagios configuration syntax: Multiple directives per line?
Nov
11
awarded  Popular Question
Nov
3
awarded  Revival
Jul
28
awarded  Popular Question
Jul
27
comment How to disable AAAA lookups?
Interesting! I will investigate which applications trigger AAAA requests. If it's only ours, then i'll relay your suggestion to our devs. But i have a strong hunch that a lot of Debian/Ubuntu-packaged software is suffering from this, and we ain't gonna patch those.
Jul
27
awarded  Notable Question
Jul
26
comment How to disable AAAA lookups?
Thank you, i wasn't aware of Bind's AAAA filter. As Michael mentions, it's probably not a solution for us due to Bind's large footprint. But for those who want to filter out AAAA responses in other scenarios it might be a viable way. Ubuntu actually builds bind with "--enable-filter-aaaa", at least on 14.04. Not sure about Debian. - See also ipamworldwide.blogspot.co.uk/2011/09/…
Jun
2
comment Find IPv4 broadcast address of a device
In the end it's gonna be a script to be plonked in Debian's /etc/network/if-up.d/. Its aim is to establish some iptables DNAT rules per interface that depend on the interface's broadcast address. But right, the bit that finds the broadcast address doesn't have to be bash. Thing is, i am more on the Ops side of DevOps.
Jun
2
comment Find IPv4 broadcast address of a device
Well then i'd rather parse is straight out with ip a show eth0 | awk '/inet/{print $4}, wouldn't I?