Posted by jpluimers on 2017/09/07
Interesting reads:
Need to research how I can fit noatime ino.
–jeroen
Posted in *nix, *nix-tools, btrfs, File-Systems, Power User | Leave a Comment »
Posted by jpluimers on 2017/08/28
This is so cool, but will take some time for lot’s of tooling to become compatible:
Starting with v197 systemd/udev will automatically assign predictable, stable network interface names for all local Ethernet, WLAN and WWAN interfaces. This is a departure from the traditional interface naming scheme (“eth0”, “eth1”, “wlan0”, …), but should fix real problems.
–jeroen
Posted in *nix, *nix-tools, Linux, Power User, systemd | Leave a Comment »
Posted by jpluimers on 2017/08/21
I didn’t notice this bind change for a while, but some time ago after doing an rcnamed restart it would split out this error message:
It seems harmless as BIND still starts:
Starting name server BIND ..done
Anyway, some links that helped me solve it:
The last entry provides the solution:
rcnamed stop
chown named:named /var/lib/named/ -R
rcnamed start
rcnamed status
The latter didn’t show any error message.
–jeroen
Posted in *nix, bind-named, Linux, openSuSE, Power User, SuSE Linux | Leave a Comment »
Posted by jpluimers on 2017/08/17
Reproduction of A start job is running for dev-disk-by... – Google Photos / Oops. Let’s see if I can reproduce it, as I think this is related: https://…
Reproducible steps below.
Related:
These are the modifications of the steps further on based on the last link above.
# rpm -qa | grep bcm43xx
bcm43xx-firmware-20170410-2.1.noarch
/etc/dracut.conf.d/raspberrypi_modules.conf, perform sudo mkinitrd without any -fAt boot time:
A start job is running for dev-disk-by\…
After waiting:
ssh root@ip-address, password linux)/etc/dracut.conf.d/raspberrypi_modules.conf and remove the sdhci-iproc from the first and # on the last line:From :
add_drivers+=" sdhci-iproc bcm2835-sdhost bcm2835_dma mmc_block dwc2 "
# Workaround for Wifi
#omit_drivers+=" sdhci-iproc"To :
add_drivers+=" bcm2835-sdhost bcm2835_dma mmc_block dwc2 "
# Workaround for Wifi
omit_drivers+=" sdhci-iproc"mkinitrd -f
rebootYast if wlan0 exists in System -> Network Settings, then assign an SSIS plus credentials to it
BCM43430 WLAN cardEdit buttonDynamic Address then select DHCP and the kind of DHCP (in my caseboth version 4 and 6)Next buttonOperating Mode as ManagedScan Network buttonNetwork Name (ESSID) from the listAuthentication Mode from the listKey Input Type as PassphraseEncryption KeyNext buttonOK buttonYastip a that wlan0 got an IP addresszypper refresh
zypper dist-upgradeGist log until 7. is below.
<wiert>
–jeroen
Posted in *nix, Development, Hardware Development, Linux, openSuSE, Power User, Raspberry Pi, SuSE Linux, Tumbleweed | Leave a Comment »
Posted by jpluimers on 2017/08/07
sslh accepts connections on specified ports, and forwards them further based on tests performed on the first data packet sent by the remote client.
Probes for HTTP, SSL, SSH, OpenVPN, tinc, XMPP are implemented, and any other protocol that can be tested using a regular expression, can be recognised. A typical use case is to allow serving several services on port 443 (e.g. to connect to ssh from inside a corporate firewall, which almost never block port 443) while still serving HTTPS on that port.
Hence sslh acts as a protocol demultiplexer, or a switchboard. Its name comes from its original function to serve SSH and HTTPS on the same port.
sslh supports IPv6, privilege dropping, transparent proxying, and more.
Interesting…
–jeroen
Posted in *nix, https, Linux, OpenSSL, OpenVPN, Power User, Security | Leave a Comment »
Posted by jpluimers on 2017/08/01
Uptime robot (free for 50 monitors every 5 minutes) is cool:
[Archive.is]
[Archive.is]
These are xs4all fiber connections in Amsterdam and Sassenheim. Despite not mentioned on the xs4all status page [WayBack] XS4ALL | Storingen en werkzaamheden, apparently there was some fiber down time in both places.
The HeldenVanNu fiber connection in Amsterdam was doing fine at that time; those downtimes below were planned on my side:
–jeroen
Posted in Monitoring, Power User | Leave a Comment »
Posted by jpluimers on 2017/07/31
I could not find many potential anti-virus and -malware tools for OpenSuSE Tumbleweed despite they would be useful not only for non-Linux clients like Windows and Mac OS X.
These I found:
–jeroen
Posted in *nix, Linux, openSuSE, Power User, SuSE Linux, Tumbleweed | Leave a Comment »
Posted by jpluimers on 2017/07/27
Not sure why without the -z compression switch this succeeds:
# rsync -avloz /var/lib/named/master/ /etc/named/master/ sending incremental file list pluimers.com Segmentation fault (core dumped) # rsync -avlo /var/lib/named/master/ /etc/named/master/ sending incremental file list pluimers.com pluimers.com.20161231 pluimers.com~ sent 10,495 bytes received 74 bytes 21,138.00 bytes/sec total size is 132,231 speedup is 12.51 # rsync -avloz /var/lib/named/master/ /etc/named/master/ sending incremental file list sent 1,547 bytes received 13 bytes 3,120.00 bytes/sec total size is 132,231 speedup is 84.76
–jeroen
via: [WayBack] rsync(1) – Linux man page
Posted in *nix, *nix-tools, Power User, rsync | Leave a Comment »
Posted by jpluimers on 2017/07/26
HTTP Prompt is an interactive command-line HTTP client featuring autocomplete and syntax highlighting. Download url -> https://github.com/eliangcs/http-prompt – Joe C. Hecht – Google+
Source: HTTP Prompt is an interactive command-line HTTP client featuring autocomplete… [WayBack]
To me it looks remarkably similar to https://github.com/jkbrzt/httpie [WayBack] which too is a visual cURL replacement.
–jeroen
Posted in *nix, Communications Development, cURL, Development, HTTP, Internet protocol suite, Power User, Software Development, TCP, Web Development | Leave a Comment »
Posted by jpluimers on 2017/07/25
I’ve been using cURL but always had a feeling not to its potential basically because the cURL man page [WayBack] is both massive and lacks concrete useful practical examples.
For instance, I knew about the --header and --verbose options (I always use verbose names even though shorter -H and -v exist) to pass a specific header and get verbose output, but the man page basic examples like this by Tader:
curl --header --verbose "X-MyHeader: 123" www.google.comsource: How to send a header using a HTTP request through a curl call? – Stack Overflow [WayBack]
There are some more examples at bropages.org/curl but they’re hardly organised or documented.
So I was really glad I found the below answer [WayBack] by Amith Koujalgi to web services – HTTP POST and GET using cURL in Linux – Stack Overflow.
But first note that recent versions (around 7.22 or higher) of cURL now need to combine the --silent and --show-error (or in short -sS) parameters to suppress progress but show errors: linux – How do I get cURL to not show the progress bar? – Stack Overflow [WayBack]
Posted in *nix, Communications Development, cURL, Delphi, Development, HTTP, https, Internet protocol suite, JavaScript/ECMAScript, JSON, Power User, REST, Scripting, Security, Software Development, TCP, TLS, XML, XML/XSD | 1 Comment »
