pydelion.com https://pydelion.com/ date --date="5 min ago" +%d/%b/%Y:%H:%M Fri, 13 May 2022 20:05:30 +0000 en-US hourly 1 Debian: There is no public key available for the following key IDs https://pydelion.com/2022/05/13/debian-there-is-no-public-key-available-for-the-following-key-ids/ https://pydelion.com/2022/05/13/debian-there-is-no-public-key-available-for-the-following-key-ids/#respond Fri, 13 May 2022 20:02:46 +0000 https://pydelion.com/?p=908 Problem: W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://cdn-fastly.deb.debian.org/debian stretch-b ackports InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 648ACFD622F3D138 NO_PUBKEY DCC9EFBF77E11517 W: Failed to fetch http://http.debian.net/debian/dists/stretch-backports/InRelease The following signatures couldn't be […]

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]]> Problem:
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://cdn-fastly.deb.debian.org/debian stretch-b
ackports InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 648ACFD622F3D138 NO_PUBKEY DCC9EFBF77E11517
W: Failed to fetch http://http.debian.net/debian/dists/stretch-backports/InRelease The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 648ACFD622F3D138 NO_PUBKEY DCC9EFBF77E11517
W: Some index files failed to download. They have been ignored, or old ones used instead.
Solution:

apt-get install debian-keyring debian-archive-keyring

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]]> https://pydelion.com/2022/05/13/debian-there-is-no-public-key-available-for-the-following-key-ids/feed/ 0 How to renew Certificate Revocation List https://pydelion.com/2020/03/27/how_to_renew_certificate_revocation_list/ https://pydelion.com/2020/03/27/how_to_renew_certificate_revocation_list/#respond Fri, 27 Mar 2020 17:24:03 +0000 http://pydelion.com/?p=896 If you get the following error: VERIFY ERROR: depth=0, error=CRL has expired it means that the Certificate Revocation List is expired and needs to be renewed. (Rationale). Here’s how you can do that. Checking the expiration period: openssl crl -in <strong>ca-crl.pem</strong> -text | grep 'Next Update' To renew run: openssl ca -gencrl -config ca.conf -out […]

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]]> If you get the following error:

VERIFY ERROR: depth=0, error=CRL has expired

it means that the Certificate Revocation List is expired and needs to be renewed. (Rationale). Here’s how you can do that.

Checking the expiration period:

openssl crl -in <strong>ca-crl.pem</strong> -text | grep 'Next Update'

To renew run:

openssl ca -gencrl -config ca.conf -out ca-crl.pem

 

To modify the interval change default_crl_days.

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]]> https://pydelion.com/2020/03/27/how_to_renew_certificate_revocation_list/feed/ 0 Dovecot: Error: mmap failed with file … dovecot.index.cache: Cannot allocate memory https://pydelion.com/2020/01/23/dovecot-error-mmap-failed-with-file-dovecot-index-cache-cannot-allocate-memory/ https://pydelion.com/2020/01/23/dovecot-error-mmap-failed-with-file-dovecot-index-cache-cannot-allocate-memory/#respond Thu, 23 Jan 2020 16:46:20 +0000 http://pydelion.com/?p=890 To fix the problem it’s sufficiet to modify the following parameter: default_vsz_limit = 512M On Centos 7 it’s located in: /etc/dovecot/conf.d/10-master.conf Not that hard to solve problem.

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]]> To fix the problem it’s sufficiet to modify the following parameter:

default_vsz_limit = 512M

On Centos 7 it’s located in:

/etc/dovecot/conf.d/10-master.conf

Not that hard to solve problem.

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]]> https://pydelion.com/2020/01/23/dovecot-error-mmap-failed-with-file-dovecot-index-cache-cannot-allocate-memory/feed/ 0 Debian: reconfigure unattended upgrades https://pydelion.com/2019/12/18/debian-reconfigure-unattended-upgrades/ https://pydelion.com/2019/12/18/debian-reconfigure-unattended-upgrades/#respond Wed, 18 Dec 2019 16:53:41 +0000 http://pydelion.com/?p=886 Note for future me: apt-get install unattended-upgrades update-notifier-common ; dpkg-reconfigure unattended-upgrades I think it might be the same for Ubuntu.

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]]> Note for future me:

apt-get install unattended-upgrades update-notifier-common ; dpkg-reconfigure unattended-upgrades

I think it might be the same for Ubuntu.

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]]> https://pydelion.com/2019/12/18/debian-reconfigure-unattended-upgrades/feed/ 0 Curl: how to send cookies https://pydelion.com/2019/12/18/curl-how-to-send-cookies/ https://pydelion.com/2019/12/18/curl-how-to-send-cookies/#respond Wed, 18 Dec 2019 16:50:37 +0000 http://pydelion.com/?p=883 This is how you can use curl with cookies: curl --cookie cookies.txt --cookie-jar newcookies.txt https://yahoo.com -I Sometimes it could be required to test a website with cookies from curl.

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]]> This is how you can use curl with cookies:

curl --cookie cookies.txt --cookie-jar newcookies.txt https://yahoo.com -I

Sometimes it could be required to test a website with cookies from curl.

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]]> https://pydelion.com/2019/12/18/curl-how-to-send-cookies/feed/ 0 Linux. how to find the most recent file in a folder https://pydelion.com/2018/09/17/linux-how-to-find-the-most-recent-file-in-a-folder/ https://pydelion.com/2018/09/17/linux-how-to-find-the-most-recent-file-in-a-folder/#respond Mon, 17 Sep 2018 12:53:53 +0000 http://pydelion.com/?p=861 find $DIR -type f -printf "%T@ %p\n" | sort -n | cut -d' ' -f 2- | tail -n 1 Found at StackOverflow.

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]]> find $DIR -type f -printf "%T@ %p\n" | sort -n | cut -d' ' -f 2- | tail -n 1

Found at StackOverflow.

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]]> https://pydelion.com/2018/09/17/linux-how-to-find-the-most-recent-file-in-a-folder/feed/ 0 Debian: how to add memtest86 entry to the boot menu https://pydelion.com/2018/08/12/debian-how-to-add-memtest86-entry-to-the-boot-menu/ https://pydelion.com/2018/08/12/debian-how-to-add-memtest86-entry-to-the-boot-menu/#respond Sun, 12 Aug 2018 12:49:01 +0000 http://pydelion.com/?p=849 Simply run: apt-get install memtest86+ It will install memtest and reconfigure the menu.

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]]> Simply run:

apt-get install memtest86+

It will install memtest and reconfigure the menu.

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]]> https://pydelion.com/2018/08/12/debian-how-to-add-memtest86-entry-to-the-boot-menu/feed/ 0 Debian: how to solve ‘Can’t locate IPC/Run.pm in @INC (you may need to install the IPC::Run module)’ https://pydelion.com/2018/07/20/debian-how-to-solve-cant-locate-ipc-run-pm-in-inc-you-may-need-to-install-the-ipcrun-module/ https://pydelion.com/2018/07/20/debian-how-to-solve-cant-locate-ipc-run-pm-in-inc-you-may-need-to-install-the-ipcrun-module/#respond Fri, 20 Jul 2018 11:46:36 +0000 http://pydelion.com/?p=854 It’s pretty easy: apt install libipc-run-perl

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]]> It’s pretty easy:

apt install libipc-run-perl

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]]> https://pydelion.com/2018/07/20/debian-how-to-solve-cant-locate-ipc-run-pm-in-inc-you-may-need-to-install-the-ipcrun-module/feed/ 0 Debian: how to set up VLAN interface https://pydelion.com/2018/06/03/how-to-set-up-vlan-in-debian/ https://pydelion.com/2018/06/03/how-to-set-up-vlan-in-debian/#respond Sun, 03 Jun 2018 15:12:26 +0000 http://pydelion.com/?p=836 apt-get install vlan modprobe 8021q grep -q 8021q /etc/modules || echo 8021q >> /etc/modules vim /etc/network/interfaces auto eth0.99 iface eth0.99 inet static address 192.168.99.1 netmask 255.255.255.0 vlan-raw-device eth0 ifup eth0.99

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]]> apt-get install vlan 
modprobe 8021q
grep -q 8021q /etc/modules || echo 8021q >> /etc/modules
vim /etc/network/interfaces
auto eth0.99
    iface eth0.99 inet static
    address 192.168.99.1
    netmask 255.255.255.0
    vlan-raw-device eth0
ifup eth0.99

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]]> https://pydelion.com/2018/06/03/how-to-set-up-vlan-in-debian/feed/ 0 Vim: vim behaves as vi and drives you nuts – how to fix https://pydelion.com/2018/05/18/vim-vim-behaves-as-vi-and-drives-you-nuts-how-to-fix/ https://pydelion.com/2018/05/18/vim-vim-behaves-as-vi-and-drives-you-nuts-how-to-fix/#respond Fri, 18 May 2018 13:31:50 +0000 http://pydelion.com/?p=842 For some reason vim on Debian went crazy and stopped worked as vim. This is how to make it work like vim instead of vi. cp /usr/share/vim/vim74/vimrc_example.vim ~/.vimrc and change " In many terminal emulators the mouse works just fine, thus enable it. if has('mouse') set mouse=a endif to " In many terminal emulators the […]

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]]> For some reason vim on Debian went crazy and stopped worked as vim. This is how to make it work like vim instead of vi.

cp /usr/share/vim/vim74/vimrc_example.vim ~/.vimrc

and change

" In many terminal emulators the mouse works just fine, thus enable it.
if has('mouse')
set mouse=a
endif

to

" In many terminal emulators the mouse works just fine, thus enable it.
if has('mouse')
set mouse=r
endif

Hooray.

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]]> https://pydelion.com/2018/05/18/vim-vim-behaves-as-vi-and-drives-you-nuts-how-to-fix/feed/ 0