Francesco Galgani's questions

我在 Ubuntu 18.04 服务器上有这个问题，可能是因为/boot/grub/menu.lst不存在：

root@myserver:~# apt install -f
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  liblua5.1-0 libyajl2
Use 'apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up linux-image-4.15.0-175-generic (4.15.0-175.184) ...
Processing triggers for linux-image-4.15.0-175-generic (4.15.0-175.184) ...
/etc/kernel/postinst.d/initramfs-tools:
update-initramfs: Generating /boot/initrd.img-4.15.0-175-generic
W: initramfs-tools configuration sets RESUME=/dev/mapper/vg-lv_swap
W: but no matching swap device is available.
I: The initramfs will attempt to resume from /dev/vda2
I: (UUID=4c30643f-055d-4ad7-babc-b2a6b8ac3138)
I: Set the RESUME variable to override this.
/etc/kernel/postinst.d/x-grub-legacy-ec2:
Searching for GRUB installation directory ... found: /boot/grub
Searching for default file ... found: /boot/grub/default
Testing for an existing GRUB menu.lst file ... 

Could not find /boot/grub/menu.lst file. Would you like /boot/grub/menu.lst gene
rated for you? (y/N) /usr/sbin/update-grub-legacy-ec2: line 1101: read: read err
or: 0: Bad file descriptor
run-parts: /etc/kernel/postinst.d/x-grub-legacy-ec2 exited with return code 1
dpkg: error processing package linux-image-4.15.0-175-generic (--configure):
 installed linux-image-4.15.0-175-generic package post-installation script subpr
ocess returned error exit status 1
Errors were encountered while processing:
 linux-image-4.15.0-175-generic
E: Sub-process /usr/bin/dpkg returned an error code (1)
root@myserver:~# locate menu.lst
/boot/grub.bak/menu.lst_backup_by_grub2_prerm
/boot/grub.bak/menu.lst~
/var/lib/ucf/cache/:run:grub:menu.lst
root@myserver:~# cat /var/lib/ucf/cache/:run:grub:menu.lst
## ## End Default Options ##

title       Ubuntu 18.04.6 LTS, kernel 4.15.0-173-generic
root        (hd0)
kernel      /vmlinuz-4.15.0-173-generic root=/dev/mapper/vg-lv_root ro console=hvc0 
initrd      /initrd.img-4.15.0-173-generic

title       Ubuntu 18.04.6 LTS, kernel 4.15.0-173-generic (recovery mode)
root        (hd0)
kernel      /vmlinuz-4.15.0-173-generic root=/dev/mapper/vg-lv_root ro  single
initrd      /initrd.img-4.15.0-173-generic

### END DEBIAN AUTOMAGIC KERNELS LIST
root@myserver:~# 

和：

root@myserver:~# df -h
Filesystem      Size  Used Avail Use% Mounted on
udev            461M     0  461M   0% /dev
tmpfs            99M  776K   98M   1% /run
/dev/vda1        23G  5.3G   17G  25% /
tmpfs           493M     0  493M   0% /dev/shm
tmpfs           5.0M     0  5.0M   0% /run/lock
tmpfs           493M     0  493M   0% /sys/fs/cgroup
/dev/vdb1       147G   52G   88G  38% /var/www/html/video
tmpfs            99M     0   99M   0% /run/user/0
root@myserver:~# uname -a
Linux myserver.com 4.15.0-173-generic #182-Ubuntu SMP Fri Mar 18 15:53:46 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

任何想法？谢谢

我在以下位置定制了 Searx ( https://searx.me/ ) 安装： https://ricercaalternativa.mydissent.net/

多年来，它一直与 Letsencrypt 一起正常工作。然而，就在几天前，Letsencrypt 提供的证书与除 Apple（iPhone 和 macOS 上的 Safari）之外的所有东西都兼容。

此测试显示“链问题”： https ://www.ssllabs.com/ssltest/analyze.html?d=ricercaalternativa.mydissent.net

我不知道如何解决这个问题（实际上这个问题的含义是什么），也是因为 SSL 证书的安装一直是完全自动化的，使用以下 Bash 脚本：

#!/bin/bash
YOUR_DOMAIN="ricercaalternativa.mydissent.net"
certbot certonly -d ${YOUR_DOMAIN} --manual --preferred-challenges dns
service uwsgi restart
service nginx restart

无论如何，--preferred-challenges dns似乎被忽略了：它没有要求我部署 DNS 记录。这是输出：

# ./updateSSL.sh 
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator manual, Installer None
Cert not yet due for renewal

You have an existing certificate that has exactly the same domains or certificate name you requested and isn't close to expiry.
(ref: /etc/letsencrypt/renewal/ricercaalternativa.mydissent.net.conf)

What would you like to do?
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
1: Keep the existing certificate for now
2: Renew & replace the cert (limit ~5 per 7 days)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Select the appropriate number [1-2] then [enter] (press 'c' to cancel): 2
Renewing an existing certificate

IMPORTANT NOTES:
 - Congratulations! Your certificate and chain have been saved at:
   /etc/letsencrypt/live/ricercaalternativa.mydissent.net/fullchain.pem
   Your key file has been saved at:
   /etc/letsencrypt/live/ricercaalternativa.mydissent.net/privkey.pem
   Your cert will expire on 2022-01-05. To obtain a new or tweaked
   version of this certificate in the future, simply run certbot
   again. To non-interactively renew *all* of your certificates, run
   "certbot renew"
 - If you like Certbot, please consider supporting our work by:

   Donating to ISRG / Let's Encrypt:   https://letsencrypt.org/donate
   Donating to EFF:                    https://eff.org/donate-le

这是 certbot 的版本：

# apt-cache policy certbot | grep Installed
  Installed: 0.31.0-2~deb10u1+ubuntu18.04.1+certbot+3

我在本地（在 Linux Mint 19 上）安装了 phpmyadmin，通过 ssh 隧道在远程 VPS（运行 Ubuntu 18.04）上管理 mysql 5.7 数据库。

我使用以下命令创建隧道：

ssh -L 3307:127.0.0.1:3306 root@example.com -N -v

它可以工作，但 phpmyadmin 非常慢。相比之下，服务器非常快，ssh 连接也非常快。

我不知道是什么导致了问题，我接受解决建议，谢谢。