Solution:
step1: rm -rf .git/hooks
step2: Rerun the commit command (git commit -m ‘commit content’)
Problem description
For PPTP/L2TP device interfaces, the FC driver should not set netif_F_HW_Csum, because HW does not support calculating the TCP/UDP checksum encapsulated by PPTP/L2TP header. It provides a function to set which device interface does not set netif_F_HW_CSUM
Solution
File path: rtl819x/linux-4.4.x/drivers/net/ethernet/realtek/rtl86900/FleetConntrackDriver/src/rtk_fc_helper_ps.c
int rtk_set_hw_csum(char *dev_name)
{
// It does not support hw checksum feature for wlan and pptp/l2tp interface
// for RTK use application: PPP9~12 are used for PPTP/L2TP, hw checksum offload didn't
support inner header update so we must NOT turn on it.
if(strncmp(dev_name, "wlan", 4) && strncmp(dev_name, "ppp9", 4) && strncmp(dev_name,
"ppp10", 5) && strncmp(dev_name, "ppp11", 5) && strncmp(dev_name, "ppp12", 5))
return TRUE;
else
return FALSE;
}SDK, PPTP/L2TP device interface name is ppp9 ~ ppp12. Therefore, if you modify the PPTP/L2TP device interface name (not ppp9 ~ ppp12), you should also modify the function RTK_set_hw_csum().
The maximum number of cache bytes for remote convenient HTTP transmission of request data. By default, it is 1m bytes, which can meet most requests by default.
When git clone is a large file, you need to increase the GIT cache value, for example (connect to 5g!):
sudo git config --global http.postBuffer 5242880000
version: foxy
apt install
sudo apt-get install ros-foxy-serial-driver
[sudo] password for mi:
Sorry, try again.
[sudo] password for mi:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
ros-foxy-serial-driver
0 upgraded, 1 newly installed, 0 to remove and 769 not upgraded.
Need to get 9,508 B of archives.
After this operation, 61.4 kB of additional disk space will be used.
Err:1 http://packages.ros.org/ros2/ubuntu focal/main amd64 ros-foxy-serial-driver amd64 0.0.6-1focal.20210423.022509
404 Not Found [IP: 64.50.233.100 80]
E: Failed to fetch http://packages.ros.org/ros2/ubuntu/pool/main/r/ros-foxy-serial-driver/ros-foxy-serial-driver_0.0.6-1focal.20210423.022509_amd64.deb 404 Not Found [IP: 64.50.233.100 80]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
Apt update error:
W: An error occurred during the signature verification.
The repository is not updated and the previous index files will be used.
GPG error: http://packages.ros.org/ros/ubuntu focal InRelease: The following signatures were invalid: EXPKEYSIG F42ED6FBAB17C654 Open Robotics <[email protected]>
Solution:
curl http://repo.ros2.org/repos.key | sudo apt-key add -1 click let cmake detect
/Applications/CLion.app/Contents/bin/cmake/mac/bin/cmake -DCMAKE_BUILD_TYPE=Debug -G "CodeBlocks - Unix Makefiles" /Users/apple/CLionProjects/untitled16
-- The C compiler identification is unknown
-- The CXX compiler identification is unknown
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc - broken
CMake Error at /Applications/CLion.app/Contents/bin/cmake/mac/share/cmake-3.17/Modules/CMakeTestCCompiler.cmake:60 (message):
The C compiler
"/usr/bin/cc"
is not able to compile a simple test program.
It fails with the following output:
Change Dir: /Users/apple/CLionProjects/untitled16/cmake-build-debug/CMakeFiles/CMakeTmp
Run Build Command(s):xxxx(can not find /Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/numpy/core/include:)
2 view environment variables
cd ~
vim .bash_profile
It is found that the error path is cflags (I wonder why I set cflags to be a python library?) Solution: comment out this line of code. Result: Although there is no error message in red in this interface, the program still cannot be compiled
Replace c compiler [key to solving the problem]
View all gcc compiler paths
brew list gcc/usr/local/Cellar/gcc/11.2.0/bin/c++-11
/usr/local/Cellar/gcc/11.2.0/bin/cpp-11
/usr/local/Cellar/gcc/11.2.0/bin/g++-11
/usr/local/Cellar/gcc/11.2.0/bin/gcc-11
/usr/local/Cellar/gcc/11.2.0/bin/gcc-ar-11
/usr/local/Cellar/gcc/11.2.0/bin/gcc-nm-11
/usr/local/Cellar/gcc/11.2.0/bin/gcc-ranlib-11
/usr/local/Cellar/gcc/11.2.0/bin/gcov-11
/usr/local/Cellar/gcc/11.2.0/bin/gcov-dump-11
/usr/local/Cellar/gcc/11.2.0/bin/gcov-tool-11
/usr/local/Cellar/gcc/11.2.0/bin/gdc
/usr/local/Cellar/gcc/11.2.0/bin/gdc-11
/usr/local/Cellar/gcc/11.2.0/bin/gfortran
/usr/local/Cellar/gcc/11.2.0/bin/gfortran-11
/usr/local/Cellar/gcc/11.2.0/bin/lto-dump-11
/usr/local/Cellar/gcc/11.2.0/bin/x86_64-apple-darwin20-c++-11
/usr/local/Cellar/gcc/11.2.0/bin/x86_64-apple-darwin20-g++-11
/usr/local/Cellar/gcc/11.2.0/bin/x86_64-apple-darwin20-gcc-11
/usr/local/Cellar/gcc/11.2.0/bin/x86_64-apple-darwin20-gcc-11.2.0
/usr/local/Cellar/gcc/11.2.0/bin/x86_64-apple-darwin20-gcc-ar-11
/usr/local/Cellar/gcc/11.2.0/bin/x86_64-apple-darwin20-gcc-nm-11
/usr/local/Cellar/gcc/11.2.0/bin/x86_64-apple-darwin20-gcc-ranlib-11
/usr/local/Cellar/gcc/11.2.0/bin/x86_64-apple-darwin20-gdc-11
/usr/local/Cellar/gcc/11.2.0/bin/x86_64-apple-darwin20-gfortran-11
/usr/local/Cellar/gcc/11.2.0/include/c++/ (796 files)
/usr/local/Cellar/gcc/11.2.0/lib/gcc/ (1304 files)
/usr/local/Cellar/gcc/11.2.0/libexec/gcc/ (15 files)
/usr/local/Cellar/gcc/11.2.0/share/gcc-11.2.0/ (4 files)
/usr/local/Cellar/gcc/11.2.0/share/man/ (12 files)
C compiler and C + + compiler use respectively:
/usr/local/Cellar/gcc/11.2.0/bin/gcc-11
/usr/local/Cellar/gcc/11.2.0/bin/g++-11
After selection, Clion automatically compiles and succeeds.
redis.exceptions.ResponseError: MISCONF Redis is configured to save RDB snapshots, but it is currently not able to persist on disk. Commands that may modify the data set are disabled, because this instance is configured to report errors during writes if RDB snapshotting fails (stop-writes-on-bgsave-error option). Please check the Redis logs for details about the RDB error.
Cause: redis snapshot forced to close, resulting in the problem of not being able to persist
Solution.
1. Avoid this problem by setting the stop-writes-on-bgsave-error value to no.Through the redis command line directly to change.
Go to the redis command line and execute: config set stop-writes-on-bgsave-error no2. Change the stop-writes-on-bgsave-error value to no by modifying the redis.conf configuration file (same effect as 1)
By modifying the redis.conf file modify.
Finally, remember to restart redis: /etc/init.d/redis-server restart (If restarting doesn’t work, try stopping redis first [/etc/init.d/redis-server stop] and then starting it again [/etc/init.d/redis-server start].
When executing the script, an error message pops up:
/bin/sh^M: Corrupt interpreter: No that file or directoryThis is because the script file is saved in DOS file format. You can open the file with vim and then perform the following operations:
Solution:
:set ff=unix
:wq
Reason:
the built-in libappstream of Ubuntu 16.0.4 is a version before 2.0. We must update it to a version above 3.0
Solution:
Clear libappstream3 (purge cleans more configuration files than remove)
sudo apt-get purge libappstream3
Operation results:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
gnome-software-common libgtkspell3-3-0
Use 'sudo apt autoremove' to remove them.
The following packages will be REMOVED:
appstream* gnome-software* libappstream3* ubuntu-software*
0 upgraded, 0 newly installed, 4 to remove and 281 not upgraded.
After this operation, 1,759 kB disk space will be freed.
Do you want to continue?[Y/n] y
(Reading database ... 214637 files and directories currently installed.)
Removing ubuntu-software (3.20.1+git20160420.1.ca63436.ubuntu-xenial-0ubuntu2) ...
Removing gnome-software (3.20.1+git20160420.1.ca63436.ubuntu-xenial-0ubuntu2) ...
Purging configuration files for gnome-software (3.20.1+git20160420.1.ca63436.ubuntu-xenial-0ubuntu2) ...
Removing appstream (0.9.4-1) ...
Purging configuration files for appstream (0.9.4-1) ...
rmdir: failed to remove '/var/cache/app-info/': Directory not empty
Removing libappstream3:amd64 (0.9.4-1) ...
Processing triggers for hicolor-icon-theme (0.15-0ubuntu1) ...
Processing triggers for libglib2.0-0:amd64 (2.48.2-0ubuntu4.8) ...
Processing triggers for man-db (2.7.5-1) ...
Processing triggers for gnome-menus (3.13.3-6ubuntu3) ...
Processing triggers for desktop-file-utils (0.22-1ubuntu5) ...
Processing triggers for bamfdaemon (0.5.3~bzr0+16.04.20160415-0ubuntu1) ...
Rebuilding /usr/share/applications/bamf-2.index...
Processing triggers for mime-support (3.59ubuntu1) ...
Processing triggers for libc-bin (2.23-0ubuntu11.3) ...
yg@ubuntu:~$
Continue:
sudo apt autoremove
result:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
gnome-software-common libgtkspell3-3-0
0 upgraded, 0 newly installed, 2 to remove and 280 not upgraded.
After this operation, 2,744 kB disk space will be freed.
Do you want to continue?[Y/n] y
(Reading database ... 214577 files and directories currently installed.)
Removing gnome-software-common (3.20.1+git20160420.1.ca63436.ubuntu-xenial-0ubuntu2) ...
Removing libgtkspell3-3-0:amd64 (3.0.7-2) ...
Processing triggers for hicolor-icon-theme (0.15-0ubuntu1) ...
Processing triggers for libc-bin (2.23-0ubuntu11.3) ...
Execution:
sudo apt-get update
result:
yg@ubuntu:~$ sudo apt-get update
Hit:1 http://archive.canonical.com/ubuntu xenial InRelease
Hit:2 http://mirrors.aliyun.com/ubuntu xenial InRelease
Hit:3 http://mirrors.aliyun.com/ubuntu xenial-updates InRelease
Hit:4 http://mirrors.aliyun.com/ubuntu xenial-backports InRelease
Hit:5 http://mirrors.aliyun.com/ubuntu xenial-security InRelease
Reading package lists... Done
W: Target Sources (restricted/source/Sources) is configured multiple times in /etc/apt/sources.list:2 and /etc/apt/sources.list:4
W: Target Packages (restricted/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:3 and /etc/apt/sources.list:24
W: Target Packages (restricted/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:3 and /etc/apt/sources.list:24
W: Target Packages (restricted/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:3 and /etc/apt/sources.list:24
W: Target Translations (restricted/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:3 and /etc/apt/sources.list:24
W: Target Translations (restricted/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:3 and /etc/apt/sources.list:24
W: Target Packages (restricted/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:5 and /etc/apt/sources.list:29
W: Target Packages (restricted/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:5 and /etc/apt/sources.list:29
W: Target Packages (restricted/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:5 and /etc/apt/sources.list:29
W: Target Translations (restricted/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:5 and /etc/apt/sources.list:29
W: Target Translations (restricted/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:5 and /etc/apt/sources.list:29
W: Target Packages (restricted/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:11 and /etc/apt/sources.list:53
W: Target Packages (restricted/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:11 and /etc/apt/sources.list:53
W: Target Packages (restricted/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:11 and /etc/apt/sources.list:53
W: Target Translations (restricted/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:11 and /etc/apt/sources.list:53
W: Target Translations (restricted/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:11 and /etc/apt/sources.list:53
W: Target Packages (multiverse/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:11 and /etc/apt/sources.list:53
W: Target Packages (multiverse/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:11 and /etc/apt/sources.list:53
W: Target Packages (multiverse/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:11 and /etc/apt/sources.list:53
W: Target Translations (multiverse/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:11 and /etc/apt/sources.list:53
W: Target Translations (multiverse/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:11 and /etc/apt/sources.list:53
W: Target Packages (restricted/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:63
W: Target Packages (restricted/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:63
W: Target Packages (restricted/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:63
W: Target Translations (restricted/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:63
W: Target Translations (restricted/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:63
W: Target Sources (restricted/source/Sources) is configured multiple times in /etc/apt/sources.list:2 and /etc/apt/sources.list:4
W: Target Packages (restricted/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:3 and /etc/apt/sources.list:24
W: Target Packages (restricted/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:3 and /etc/apt/sources.list:24
W: Target Packages (restricted/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:3 and /etc/apt/sources.list:24
W: Target Translations (restricted/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:3 and /etc/apt/sources.list:24
W: Target Translations (restricted/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:3 and /etc/apt/sources.list:24
W: Target Packages (restricted/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:5 and /etc/apt/sources.list:29
W: Target Packages (restricted/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:5 and /etc/apt/sources.list:29
W: Target Packages (restricted/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:5 and /etc/apt/sources.list:29
W: Target Translations (restricted/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:5 and /etc/apt/sources.list:29
W: Target Translations (restricted/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:5 and /etc/apt/sources.list:29
W: Target Packages (restricted/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:11 and /etc/apt/sources.list:53
W: Target Packages (restricted/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:11 and /etc/apt/sources.list:53
W: Target Packages (restricted/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:11 and /etc/apt/sources.list:53
W: Target Translations (restricted/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:11 and /etc/apt/sources.list:53
W: Target Translations (restricted/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:11 and /etc/apt/sources.list:53
W: Target Packages (multiverse/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:11 and /etc/apt/sources.list:53
W: Target Packages (multiverse/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:11 and /etc/apt/sources.list:53
W: Target Packages (multiverse/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:11 and /etc/apt/sources.list:53
W: Target Translations (multiverse/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:11 and /etc/apt/sources.list:53
W: Target Translations (multiverse/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:11 and /etc/apt/sources.list:53
W: Target Packages (restricted/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:63
W: Target Packages (restricted/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:63
W: Target Packages (restricted/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:63
W: Target Translations (restricted/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:63
W: Target Translations (restricted/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:63
yg@ubuntu:~$
No more mistakes
clone warn: clone failed
Error Message:
4:07 PM Clone failed
4069 bytes of body are still expected
fetch-pack: unexpected disconnect while reading sideband packet
early EOF
fetch-pack: invalid index-pack output
Show details in console
Solution:
Modify git’s cache
git config –global http.postBuffer 1024M
Note: The exact value is set according to the actual download package size
Error while loading error while loading shared libraries solution
If it’s missing, find it and put it back
Distribution: archlinux
as stated in the title, take the yaourt encountered before writing this article as an example:
➜ ~ yaourt -Ss uswsusp
yaourt: error while loading shared libraries: libalpm.so.12
After looking at the in the system, I found that libalpm. So has been upgraded to 13
➜ ~ ls -l /usr/lib/libalpm.so*
lrwxrwxrwx 1 root root 13 Jul 16 03:26 /usr/lib/libalpm.so -> libalpm.so.13
lrwxrwxrwx 1 root root 17 Jul 16 03:26 /usr/lib/libalpm.so.13 -> libalpm.so.13.0.0
-rwxr-xr-x 1 root root 243608 Jul 16 03:26 /usr/lib/libalpm.so.13.0.0
Well, the problem is very simple. The library has been upgraded, but the dependent software developers have not upgraded.
Next, only three steps are required:
confirm the software from libalpm. So and download the old version (which may contain 12 generally open the package. You can directly find the corresponding link library and copy it to under /usr/Lib My detailed steps:
the search discovery may be in the Pacman package
➜ ~ pacman -Ss libalpm
core/pacman 6.0.0-5 (base-devel) [installed]
A library-based package manager with dependency support
extra/pyalpm 0.10.6-1
Python 3 bindings for libalpm
(..... Other insignificant packages)
To download the old software package of archlinux, you need to find it in arch archive.
In the /packages/P/Pacman/ directory, I tried to download the previous version of the current version (v6.0.0), pacman-5.2.2-4-x86_ 64.pkg.tar.zst
Open it directly and find libalpm. So. 12
finally, copy the extracted libalpm. So. * to /usr/lib （ Be careful not to copy the one without version suffix ( libalpm. So )
DM8 reports an error when building DMHS
Mgr [error]: library file libdmhs_ Exec.so not found, error: 0
DMHS> start exec
CSL[ERROR]: Failed to load execution module
view log
MGR[INFO]: Loading execution module...
MGR[ERROR]: Library file libdmhs_exec.so not found, Error: 0
MGR[ERROR]: Log execution failed to start
Solution:
LDD tracking library file
[dmdba@DM bin]$ ldd libdmhs_exec.so
linux-vdso.so.1 => (0x00007ffe819f6000)
libc.so.6 => /lib64/libc.so.6 (0x00007f3897ed8000)
libm.so.6 => /lib64/libm.so.6 (0x00007f3897bd5000)
librt.so.1 => /lib64/librt.so.1 (0x00007f38979cd000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f38977b1000)
libdl.so.2 => /lib64/libdl.so.2 (0x00007f38975ac000)
libdmhs_pub.so => ./libdmhs_pub.so (0x00007f3897280000)
libdmhs_ucvt.so => ./libdmhs_ucvt.so (0x00007f3896d25000)
libdmhs_dm_obj.so => ./libdmhs_dm_obj.so (0x00007f3896b0f000)
libdmhs_cvt.so => ./libdmhs_cvt.so (0x00007f3896886000)
libdodbc.so => /opt/dmdbms/bin/libdodbc.so (0x00007f389665a000)
/lib64/ld-linux-x86-64.so.2 (0x0000563b938c3000)
libdmhs_exp.so => ./libdmhs_exp.so (0x00007f3896284000)
libdmhs_xml.so => ./libdmhs_xml.so (0x00007f3896075000)
libdmoci.so => not found
libdmdpi.so => /opt/dmdbms/bin/libdmdpi.so (0x00007f3895406000)
libdmfldr.so => /opt/dmdbms/bin/libdmfldr.so (0x00007f38947d5000)
libdmelog.so => /opt/dmdbms/bin/libdmelog.so (0x00007f38945ce000)
libdmutl.so => /opt/dmdbms/bin/libdmutl.so (0x00007f38943bc000)
libdmclientlex.so => /opt/dmdbms/bin/libdmclientlex.so (0x00007f3894189000)
libdmos.so => /opt/dmdbms/bin/libdmos.so (0x00007f3893f5c000)
libdmcvt.so => /opt/dmdbms/bin/libdmcvt.so (0x00007f389387d000)
libdmstrt.so => /opt/dmdbms/bin/libdmstrt.so (0x00007f3893669000)
libstdc++.so.6 => /lib64/libstdc++.so.6 (0x00007f3893360000)
libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007f389314a000)
libdmmem.so => /opt/dmdbms/bin/libdmmem.so (0x00007f3892f3c000)
libdmcalc.so => /opt/dmdbms/bin/libdmcalc.so (0x00007f3892cb7000)
Libdmoci.so not found
[dmdba@DM bin]$ pwd
/home/dmdba/dmhs/bin
[dmdba@DM bin]$ find -name libdmoci.so
./stat/libdmoci.so
[dmdba@DM bin]$ cat /home/dmdba/.bash_profile
export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/opt/dmdbms/bin"
export DM_HOME="/opt/dmdbms"
export DMHS_HOME=/home/dmdba/dmhs
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/home/dmdba/dmhs/bin
[dmdba@DM bin]$ cp ./stat/libdmoci.so ./
Find and find it in/home/dmdba/DMHS/bin/STAT/libdmoci.so, but LD_ LIBRARY_ Path is not specified in this directory. Copy libdmoci.so to LD_ LIBRARY_ Under the directory specified by path, or add LD_ LIBRARY_ The path points to/home/dmdba/DMHS/bin/STAT
(if find is not found, you need to download one online)
Try LDD it again
[dmdba@DM bin]$ ldd libdmhs_exec.so
linux-vdso.so.1 => (0x00007ffcf27be000)
libc.so.6 => /lib64/libc.so.6 (0x00007f8c25479000)
libm.so.6 => /lib64/libm.so.6 (0x00007f8c25176000)
librt.so.1 => /lib64/librt.so.1 (0x00007f8c24f6e000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f8c24d52000)
libdl.so.2 => /lib64/libdl.so.2 (0x00007f8c24b4d000)
libdmhs_pub.so => ./libdmhs_pub.so (0x00007f8c24821000)
libdmhs_ucvt.so => ./libdmhs_ucvt.so (0x00007f8c242c6000)
libdmhs_dm_obj.so => ./libdmhs_dm_obj.so (0x00007f8c240b0000)
libdmhs_cvt.so => ./libdmhs_cvt.so (0x00007f8c23e27000)
libdodbc.so => /opt/dmdbms/bin/libdodbc.so (0x00007f8c23bfb000)
/lib64/ld-linux-x86-64.so.2 (0x00005591fe1ef000)
libdmhs_exp.so => ./libdmhs_exp.so (0x00007f8c23825000)
libdmhs_xml.so => ./libdmhs_xml.so (0x00007f8c23616000)
libdmoci.so => ./libdmoci.so (0x00007f8c22ba6000)
libdmdpi.so => /opt/dmdbms/bin/libdmdpi.so (0x00007f8c21f38000)
libdmfldr.so => /opt/dmdbms/bin/libdmfldr.so (0x00007f8c21307000)
libdmelog.so => /opt/dmdbms/bin/libdmelog.so (0x00007f8c21100000)
libdmutl.so => /opt/dmdbms/bin/libdmutl.so (0x00007f8c20eee000)
libdmclientlex.so => /opt/dmdbms/bin/libdmclientlex.so (0x00007f8c20cbb000)
libdmos.so => /opt/dmdbms/bin/libdmos.so (0x00007f8c20a8e000)
libdmcvt.so => /opt/dmdbms/bin/libdmcvt.so (0x00007f8c203af000)
libdmstrt.so => /opt/dmdbms/bin/libdmstrt.so (0x00007f8c2019b000)
libstdc++.so.6 => /lib64/libstdc++.so.6 (0x00007f8c1fe92000)
libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007f8c1fc7c000)
libdmmem.so => /opt/dmdbms/bin/libdmmem.so (0x00007f8c1fa6e000)
libdmcalc.so => /opt/dmdbms/bin/libdmcalc.so (0x00007f8c1f7e9000)
When it is normal, restart DMHS and try to start exec again
After the server restarts one day, Apache cannot start. Check the Apache error log:
cat /var/log/httpd/error_log
The following errors are found:
[Wed Aug 25 18:49:00.134257 2021] [:error] [pid 1607] SSL Library Error: -8181 Certificate has expired
[Wed Aug 25 18:49:00.134318 2021] [:error] [pid 1607] Unable to verify certificate 'Server-Cert'. Add "NSSEnforceValidCerts off" to nss.conf so the server can start until the problem can be resolved.
Use the following command to view the certificate information and find that the certificate has expired:
certutil -d /etc/httpd/alias -L -n Server-Cert
Certificate:
Data:
Version: 3 (0x2)
Serial Number: 4 (0x4)
Signature Algorithm: PKCS #1 SHA-256 With RSA Encryption
Issuer: "CN=Certificate Shack,O=example.com,C=US"
Validity:
Not Before: Fri Jan 24 15:03:11 2017
Not After : Wed Jan 24 15:03:11 2021
You can use temporary methods to solve this problem:
first set the certificate inspection prohibition, and then cancel this setting after the certificate is updated. Operation method:
add the nssenforcevalidcerts off setting in the/etc/httpd/conf.d/nss.conf file to temporarily cancel the certificate inspection.
The permanent solution is to regenerate the certificate. The command is as follows:
yum install httpd mod_nss
certutil -d /etc/httpd/alias -L -n Server-Cert
cd /etc/httpd/alias
rm -f *.db
/usr/sbin/gencert /etc/httpd/alias > /etc/httpd/alias/install.log 2>&1
Then check that the certificate expiration date is normal.
certutil -d /etc/httpd/alias -L -n Server-Cert
Certificate:
Data:
Version: 3 (0x2)
Serial Number: 4 (0x4)
Signature Algorithm: PKCS #1 SHA-256 With RSA Encryption
Issuer: "CN=Certificate Shack,O=example.com,C=US"
Validity:
Not Before: Fri Aug 27 07:27:30 2021
Not After : Wed Aug 27 07:27:30 2025
Try to start Apache and find that it still can’t be started. Check the error log again and find a new error report:
[Fri Aug 27 15:38:17.483837 2021] [:error] [pid 15043] Server user apache lacks read access to NSS key database /etc/httpd/alias/key3.db.
It should be that the Apache user does not have permission to the key3.db file
let’s check the file attributes:
ls -l /etc/httpd/alias/
total 88
-rw-------. 1 root root 65536 Oct 26 17:26 cert8.db
-rw-------. 1 root root 5872 Oct 26 17:26 install.log
-rw-------. 1 root root 16384 Oct 26 17:26 key3.db
lrwxrwxrwx. 1 root root 24 Nov 15 10:58 libnssckbi.so -> /usr/lib64/libnssckbi.so
-rw-------. 1 root root 16384 Oct 26 17:26 secmod.db
Then modify the attributes of all DB files in the/etc/httpd/alias/Directory:
chown :apache /etc/httpd/alias/*.db
chmod u=rw,g=r *.db
The effect is the same with the following two commands:
chown root.apache /etc/httpd/alias/*.db
chmod 0640 /etc/httpd/alias/*.db
After modification, check the properties of the DB file:
ls -l /etc/httpd/alias/
total 88
-rw-r-----. 1 root apache 65536 Oct 26 17:26 cert8.db
-rw-------. 1 root root 5872 Oct 26 17:26 install.log
-rw-r-----. 1 root apache 16384 Oct 26 17:26 key3.db
lrwxrwxrwx. 1 root root 24 Nov 15 10:58 libnssckbi.so -> /usr/lib64/libnssckbi.so
-rw-r-----. 1 root apache 16384 Oct 26 17:26 secmod.db
Finally, start Apache:
systemctl start httpd
Start successfully!