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#1 Re: Freedom Hacks » A scientific test for resamplers. » 2024-07-13 16:18:13

The real test is if you can tell which system is which in a blind test. If you have two systems, one cheap and one top quality, set up with a switch to control which one feeds the speakers, can you tell which switch setting is which system?

To be really thorough try it several times, with a friend changing which one is which. And a few control runs where both switch settings get the same system.

#2 Re: Desktop and Multimedia » Firefox broken? » 2024-06-29 16:17:32

What country are you in? There was problem affecting several banking sites in the UK yesterday. So it might not be firefox (although it probably is if it affected other sites as well).

#3 Re: Freedom Hacks » the right procedure ? » 2024-06-12 16:06:40

From the description those look like malware aimed at Windows systems that your browser cached. So probably not a threat to a Linux system.

Put CVE_2012_1461 into your favourite search engine for more details. Or the full name of the vulnerabilities.

You could also look at what's in /home/usre2/.cache/mozilla/firefox/r6a038wc.default-esr/cache2/entries/ (how big are the files, what does file say they are, etc).

#4 Re: Other Issues » Shaping script wondershaper seems FUBAR » 2024-06-09 16:03:51

Running shellcheck against wondershaper would be a reasonable start if it's a shell script.

Then try adding set -x as the second line and see if that tells you what it's trying to do when it fails.

But I'm only guessing because I don't have wondershaper installed.

#5 Re: Installation » [SOLVED] Still Waiting at the Altar -- Daedalus 5.01 Full Install » 2024-06-09 15:51:42

Try less /var/log/Xorg.0.log from the command line (PageUp and PageDown to scroll, h for help, q to quit). It should work either as a normal user or root. That should let you see the logs.

#6 Re: Hardware & System Configuration » merged /usr » 2024-06-07 16:09:13

Re post 89 by soren (at 09:32:57) my first response would be:
ls -li /lib/x86_64-linux-gnu/ /usr/lib/x86_64-linux-gnu/
and see if one was a symlink to the other or if they are hard links (same inode numbers). If different files but the same size I'd then try diff /lib/x86_64-linux-gnu/ /usr/lib/x86_64-linux-gnu/ to see if one is a copy of the other.

If they are the same inode numbers I'd check if /lib and /usr/lib are symlinks (ls -lid /lib/x86_64-linux-gnu/ /usr/lib/x86_64-linux-gnu/ then ls -lid /lib/ /usr/lib/). That would give me a better idea what state things are in.

#7 Re: Installation » [SOLVED] Chimaera to Daedalus upgrade broke WINE » 2024-05-26 16:13:43

I should have written ls -lR /home/groucho/.wine where the R is to list subdirectories recursively. That would show what is in all the subdirectories.

In your case I'd also look at what is in wrapper.cfg (start with file wrapper.cfg, then cat it if text or use od if binary. But that's because I'm curious.

#8 Re: Installation » [SOLVED] Chimaera to Daedalus upgrade broke WINE » 2024-05-25 16:29:31

It's probably a bit late now, but did you save a copy of /home/groucho/.wine from before you restored it from the snapshot? Or just output from ls -lr /home/groucho/.wine ? Comparing permissions from then and now might show what was wrong.

If anyone else hits this issue that would be worth trying.

#9 Re: Hardware & System Configuration » [SOLVED] OpenCL/AMDGPU-PRO? » 2024-05-09 15:55:37

Saying what model(s) of GPU you need to run it on would be a good start. As would what CPU(s), motherboard(s) etc you have. You havn't even told us if you have a desktop or a laptop.

#10 Re: Hardware & System Configuration » fsck "FEATURE_C12"? » 2024-04-25 16:20:05

Try e2fsck -V to find out what version is *really* on each system. (You may need /sbin/e2fsck -V if you're not running as root.)

#11 Re: Other Issues » [SOLVED] strange process. » 2024-03-30 17:20:03

See the man page for ssh-agent (although a quick look doesn't say how to disable it). I've not used it myself though.

#12 Re: Hardware & System Configuration » [SOLVED] CLI throughput test for Linux » 2024-03-26 17:13:52

traceroute will only learn the IP address if it gets a response from the system. So in this case it's only going to work intermittently.

I suspect your traffic may be routed through two or more paths, one via a system that generates timout responses and one or more that don't. So it's a matter of chance whether you get a response.

But it's not a worry because your traffic is always passed on to later sites.

#13 Re: Hardware & System Configuration » [SOLVED] CLI throughput test for Linux » 2024-03-25 17:21:28

traceroute should show you the IP address as well as the name a reverse DNS lookup of the IP gets. Or traceroute -n ... to get just the IP addresses.

And mtr might have an option to show the IP addresses (try hovering over the name or clicking on it).

#14 Re: Hardware & System Configuration » [SOLVED] CLI throughput test for Linux » 2024-03-24 17:30:19

That's past my knowledge of networking. It seems to have only replied to 2 of the 61 test packets sent to it. But passed on all the packets sent to later links.

If you are really interested you could ping it and see how often it replies. But it's probably won't get you anywhere unless you ask the telco that owns it, who probably won't be interested because it's passing packets on OK.

host should tell you it's IP address. But again that isn't likely to tell you anything useful.

#15 Re: Hardware & System Configuration » [SOLVED] CLI throughput test for Linux » 2024-03-23 17:06:58

The nodes with ??? for their IP address will have been configured to not send ICMP responses when a packet reached its max hops. So mtr can't tell what their IP address is. But the link looks OK because the later stages are responding OK.

#16 Re: Hardware & System Configuration » [SOLVED] CLI throughput test for Linux » 2024-03-22 17:31:59

Your telco may well have an equivalent on their website. Which they might be more willing to believe since it *should* only be going through their hardware to get to it. So they can't blame congestion on the internet between their kit and the site in question.

I had a period when I was getting bad performance from my connection. It showed up as ping'ing sites on the internet got lost and duplicate packets. I used traceroute to my telco's website, then pinged each hop to find out where the fault seemed to be (in my case the first hop past my router). But I hope you don't need to do that.

#17 Re: Desktop and Multimedia » [SOLVED] Darktable Debian 12 software installation possible? » 2024-03-15 17:09:02

Please post the contents of your /etc/apt/sources.list file. That might give us enough information to tell what's wrong.

#18 Re: Off-topic » question regarding hyperbola os » 2024-03-14 17:13:30

I just hover my mouse pointer over chopped URLs and the browser shows the full link on the bottom bar. By now it's a habit.

It also helps on web pages where the link doesn't match the visible text. Eg hover on the name of a poster.

#19 Re: Hardware & System Configuration » [SOLVED] Changing permissions on external drive » 2024-03-03 17:33:02

Look in /etc/fstab to see if it has an entry.

Check dmesg output and syslog for messages about the device or the mountpoint.

Try e2fsck -n <device> (-n means read only so should work for mounted devices). If that shows errors you need to *umount* the device, then run e2fsck <device> (specify the device, not the mountpoint).

#20 Re: Other Issues » [SOLVED] netstat -tulpen: strange output » 2024-02-25 17:26:40

A quck test gave me a clue (output truncated for brevity):

$ netstat -tulpen
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       User       Inode      PID/Program name    
tcp        0      0  *               LISTEN      0          15476      -                   
tcp        0      0 *               LISTEN      105        14342      - 

And as root:

$ sudo netstat -tulpen
[sudo] password for chris: 
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       User       Inode      PID/Program name    
tcp        0      0  *               LISTEN      0          15476      2240/exim4          
tcp        0      0 *               LISTEN      105        14342      1343/rpc.statd  

So netstat can't find out the PID/Program name if it's not running as root unless the program that opened the socket is running as you.

#21 Re: Other Issues » Clear logs » 2024-02-18 17:01:58

>filename is the quickest way to empty a file. Or cat /dev/null >filename if you want it to be more readable.

#22 Re: Other Issues » Extracting a .zip file absolutely destroys my CPU. » 2024-02-18 16:58:19

Could the system be overheating? Check for dust etc in the CPU cooler, vents, etc. Going over the system with a vacuum cleaner can make quite a difference. As can removing obstructions to air flow etc.

You could run watch sensors in one window to see how hot the system is getting.

Or free -mt or vmstat to see how much paging it's doing.

#23 Re: Other Issues » 2 CPU threads went offline and wont come back » 2024-02-18 16:50:29

What sort of CPU do you have? Is it 4 real cores or 2 cores with hypertheads?

Just post full output from lscpu if you are not sure of the answers.

And what make is the system? Can you see any clues in the BIOS?

#24 Re: Installation » Daedelus install on Lenovo T480 boots, locks up. » 2024-02-12 17:19:53

Any form of SSH is unfortunately way above my pay-grade (of clueless mouse-molester).

It's worth learning about. Assuming you have the same userid on both your systems just try ssh laptop on the desktop or vice versa (replace "laptop" with the IP address of the laptop if you havn't set up DNS or /etc/hosts entries for it). Reply y (or yes) to the prompt about accepting the host key, then it should ask you for your password.

If it hangs for a bit then times out ping the target to check the IP address is right.

That should get you started. man ssh will tell you lot more if you need to know more. Eg about how to copy files between the systems with scp or sftp.

#25 Re: Installation » Daedelus install on Lenovo T480 boots, locks up. » 2024-02-10 16:52:06

A few things to try to recover from the lockup:

Does ctrl-alt-F1 get back to a text console? Try it before the lockup or on another distro, you should have six text consoles (ctrl-alt-F1 to ctrl-alt-F6) and ctrl-alt-F7 would take you back to the GUI.

If you have another system can you log onto the Lenovo T480 over the network by ssh (or possibly telnet)? If you can you could use the ssh session to investigate (px -ef, dmesg, tail /var/log/Xorg.0.log etc) or shut it down relatively gently.

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