[GTALUG] finding out the shared object (dynamically linked libraries) use by a program

Sometime you want to know what .so libraries are used by a program. Let's say that the program's binary is in /bin/prog. $ ldd /bin/prog will do the trick. Except it doesn't capture everything. Sometimes you need to examine the running program. Let's say you wish to find out what

Re: [GTALUG] sale today on ThnkPad T490 and tiny ThinkCentre PCs

On 2020-07-10 10:19 AM, D. Hugh Redelmeier wrote: There are raging debates about Dell and Lenovo AMD-based notebooks on redflagdeals.com these days. If you are hunting for a notebook, consider looking at those discussions. According to what I've read elsewhere, Lenovo is working to make the

[GTALUG] sale today on ThnkPad T490 and tiny ThinkCentre PCs

Lenovo list prices always seem high to me. But unpredictably they have significant discounts. Sometimes the resulting prices seem reasonable. ThinkPads are generally the standard best bet for UNIX. Starting at noon today, Lenovo has a modestly spec'ed T490 for $1000. I think that that's a

Re: [GTALUG] Bash does-directory-exist question

On Fri, 10 Jul 2020 09:38:48 -0400 Giles Orr via talk wrote: > I have a strange Bash question for you. It's an edge case, but I've > run into it just often enough that I'd like to know how to deal with > it. > > How do you determine if the directory you're in has been deleted? Giles, Is

[GTALUG] recent Fedora releases refused to see an old NAS

We have an old IOmega Home Media Server, Cloud Edition NAS. It's just a single external 3.5" HDD with a little ARM board to turn it into a NAS. This is so old that the company has changed a few times: EMC bought IOmega Dell bought EMC Lenovo bought (parts of?) EMC from

Re: [GTALUG] sale today on ThnkPad T490 and tiny ThinkCentre PCs

On 2020-07-10 09:40 AM, D. Hugh Redelmeier via talk wrote: Bad news: it appears that T490 notebooks have one soldered-in 8GiB RAM and one RAM socket. How much memory can be added?  8 GB is likely not enough these days.  My E520 has 8 GB and I find it's getting tight when running a W10 virtual

Re: [GTALUG] sale today on ThnkPad T490 and tiny ThinkCentre PCs

| From: James Knott via talk | How much memory can be added?  8 GB is likely not enough these days.  My E520 | has 8 GB and I find it's getting tight when running a W10 virtual machine.  A | few years ago, it ran fine, but both Linux and Windows have grown.  I'm | running openSUSE Leap 15.2. A

Re: [GTALUG] Bash does-directory-exist question

On Fri, 2020/07/10 09:38:48AM -0400, Giles Orr via talk wrote: | This gives immediate visual feedback on the write-status of the | current directory. But test's '-w' and '-d' both claim that you're | still in a valid directory under the above circumstances. Does anyone | know of a simple way to

Re: [GTALUG] sale today on ThnkPad T490 and tiny ThinkCentre PCs

On Fri, Jul 10, 2020 at 10:23:08AM -0400, D. Hugh Redelmeier via talk wrote: > A good amount would be a second 8G stick since that would allow dual > channel operation (I think -- do check). > > I bet you could add a 16G stick, leaving you with 24G total. I think that > there are even 32G

Re: [GTALUG] sale today on ThnkPad T490 and tiny ThinkCentre PCs

| From: James Knott via talk | According to what I've read elsewhere, Lenovo is working to make the entire | ThinkPad line Linux friendly.  I don't know what the situation is with Dell, | though, IIRC, they have had some Linux models in the past. That's good. Generally, the ThinkPad line has

Re: [GTALUG] sale today on ThnkPad T490 and tiny ThinkCentre PCs

If you join up with rakuten.ca, and get to Lenovo through the Rakuten site, you will get 8% cash back on any purchase today. Ditto for Dell.ca purchases. There are raging debates about Dell and Lenovo AMD-based notebooks on redflagdeals.com these days. If you are hunting for a notebook,

Re: [GTALUG] sale today on ThnkPad T490 and tiny ThinkCentre PCs

On 2020-07-10 10:10 AM, Don Tai via talk wrote: Is it me or can anyone else scroll right? There is the "Next" button, which causes the picture to shift over, revealing a couple of models with 16 GB. --- Post to this mailing list talk@gtalug.org Unsubscribe from this mailing list

Re: [GTALUG] Bash does-directory-exist question

(base) : ~/foo ; [ -w .. ] && echo true true (base) : ~/foo ; /bin/pwd pwd: .: No such file or directory (base) : ~/foo ; pwd /Users/dmason/foo (base) : ~/foo ; [ -w $PWD ] && echo true (base) : ~/foo ; So, /bin/pwd fails and [ -w $PWD ] also fails, as John hypothesized ../Dave On Jul 10, 2020,

Re: [GTALUG] OpenWRT Upgrade

| From: David Collier-Brown via talk | I'm still looking for a scheme that doesn't fail an evil-twin attack (;-)) | | I have an apparent neighbor who uses my connection. The use I don't mind much, | the degree to which my work is public I do  mind. Evil Twin is just a variant of

Re: [GTALUG] sale today on ThnkPad T490 and tiny ThinkCentre PCs

Is it me or can anyone else scroll right? https://www.lenovo.com/ca/en/laptops/thinkpad/thinkpad-t-series/T490/p/22TP2TT4900 8G soldered RAM is a bit too lean for me. On Fri, 10 Jul 2020 at 09:40, D. Hugh Redelmeier via talk wrote: > Lenovo list prices always seem high to me. But

[GTALUG] Bash does-directory-exist question

I have a strange Bash question for you. It's an edge case, but I've run into it just often enough that I'd like to know how to deal with it. How do you determine if the directory you're in has been deleted? I've done this to myself: 'cd' to a directory in one terminal, then 'rm -r' that same

Re: [GTALUG] OpenWRT Upgrade

On Fri, 10 Jul 2020 at 08:34, D. Hugh Redelmeier via talk wrote: > > (WPS does or did have a weakness if I remember correctly. My brute > force solution has been to disable WPS. There may have been fixes.) > > Ohh. KRACK. WPA2 isn't competent. I forgot. >

Re: [GTALUG] OpenWRT Upgrade

On 2020-07-10 12:13 PM, Val Kulkov via talk wrote: I forgot to add that if enabling wpa_disable_eapol_key_retries does cause interoperability issues on a Wi-Fi network, then one can create a guest VLAN with this parameter disabled, and enable this parameter on a secure non-guest VLAN. This is

Re: [GTALUG] OpenWRT Upgrade

On Fri, 10 Jul 2020 at 12:37, James Knott via talk wrote: > On 2020-07-10 12:32 PM, Val Kulkov wrote: > > then associate your guest SSID with that VLAN. > > Yes, you associate the SSID with a VLAN. It's entirely possible to have > a Guest SSID without VLANs on a WiFi router, that uses only

Re: [GTALUG] recent Fedora releases refused to see an old NAS

On Fri, 10 Jul 2020 at 11:40, D. Hugh Redelmeier via talk wrote: > We have an old IOmega Home Media Server, Cloud Edition NAS. > > It's just a single external 3.5" HDD with a little ARM board to turn it > into a NAS. This is so old that the company has changed a few times: > EMC bought

Re: [GTALUG] OpenWRT Upgrade

On Fri, 10 Jul 2020 at 12:17, James Knott via talk wrote: > On 2020-07-10 12:13 PM, Val Kulkov via talk wrote: > > I forgot to add that if enabling wpa_disable_eapol_key_retries does > > cause interoperability issues on a Wi-Fi network, then one can create > > a guest VLAN with this parameter

Re: [GTALUG] recent Fedora releases refused to see an old NAS

| From: Val Kulkov via talk | Setting "client min protocol = NT1" is indeed a bad, bad idea from the | security standpoint. | | Check out this article: |

Re: [GTALUG] Bash does-directory-exist question

On Fri, 10 Jul 2020 at 09:39, Giles Orr via talk wrote: > The worst case I've seen is 'git', and this is what's brought me back > to this puzzle. If you're in a directory and you 'git rm' the last > file in the directory, 'git' will helpfully delete the directory as > well. Never mind that

Re: [GTALUG] OpenWRT Upgrade

On Fri, 10 Jul 2020 at 11:41, Val Kulkov wrote: > > OpenWrt does provide a workaround for WPA key reinstallation attacks. See >> the description of "wpa_disable_eapol_key_retries" parameter and the >> comments that follow at this page: >> https://openwrt.org/docs/guide-user/network/wifi/basic >>

Re: [GTALUG] OpenWRT Upgrade

On 2020-07-10 12:32 PM, Val Kulkov wrote: then associate your guest SSID with that VLAN. Yes, you associate the SSID with a VLAN.  It's entirely possible to have a Guest SSID without VLANs on a WiFi router, that uses only routing to forward the guest traffic out to the 'net.  VLAN is a LAN

Re: [GTALUG] sale today on ThnkPad T490 and tiny ThinkCentre PCs

On Fri, Jul 10, 2020 at 09:40:54AM -0400, D. Hugh Redelmeier via talk wrote: > Starting at noon today, Lenovo has a modestly spec'ed T490 for $1000. I > think that that's a good price. Thanks. -- William Park --- Post to this mailing list talk@gtalug.org Unsubscribe from this mailing list

Re: [GTALUG] sale today on ThnkPad T490 and tiny ThinkCentre PCs

Lennart Sorensen via talk wrote: > I guess Lenovo is clearing out the T490s given the T14 is the current > model. I have no idea why they only offer AMD Ryzen in 14" T series, > and intel only for the 15". It could be that they positioned two models "diagonally" from each other for people who

Re: [GTALUG] OpenWRT Upgrade

On 2020-07-10 04:04 PM, Val Kulkov wrote: On Fri, 10 Jul 2020 at 12:37, James Knott via talk > wrote: On 2020-07-10 12:32 PM, Val Kulkov wrote: > then associate your guest SSID with that VLAN. Yes, you associate the SSID with a VLAN.  It's entirely possible

Re: [GTALUG] Bash does-directory-exist question

On Fri, 10 Jul 2020 at 11:11, David Mason wrote: > > (base) : ~/foo ; [ -w .. ] && echo true > true > (base) : ~/foo ; /bin/pwd > pwd: .: No such file or directory > (base) : ~/foo ; pwd > /Users/dmason/foo > (base) : ~/foo ; [ -w $PWD ] && echo true > (base) : ~/foo ; > > So, /bin/pwd fails and