Search found 3536 matches

by jlehtone
2021/06/18 07:45:26
Forum: CentOS 7 - Software Support
Topic: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.20' not found
Replies: 3
Views: 94

Re: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.20' not found

tunk wrote:
2021/06/17 16:03:46
Maybe not an alternative, but GLIBCXX_3.4.20+21 are in CentOS 8.
The "program" sounds like a "binary blob" compiled in foreign platform, like Ubuntu. Perhaps a container with necessary bits for the program?
by jlehtone
2021/06/18 06:39:34
Forum: CentOS 7 - Networking Support
Topic: Failed to restart network.service: Unit not found.
Replies: 8
Views: 14710

Re: Failed to restart network.service: Unit not found.

how we can check if the network interface is OK before of restart ? There are two parts: * Configuration used by services is stored in files. It must be in proper syntax that the service reads. There were GUI/TUI tools, where you set/select options and the tool writes files in correct syntax. * Log...
by jlehtone
2021/06/18 06:28:00
Forum: CentOS 7 - General Support
Topic: Converting from Scientific Linux to Cent OS
Replies: 2
Views: 58

Re: Converting from Scientific Linux to Cent OS

In a perfect world an in-situ upgrade would be desirable Yes, but in this world the best we can do is an install from scratch in minutes, if we are prepared for it. How do I prepare? * I have left unallocated space on disk for "the next / ", if I want to keep the current OS details as backup * User...
by jlehtone
2021/06/18 06:06:28
Forum: CentOS 8 - Networking Support
Topic: NetworkManager.service vs network.service
Replies: 1
Views: 84

Re: NetworkManager.service vs network.service

Each network connection (aka interface) has to be configured. Both of these services do that. At most one service can configure one interface. Services are definitely mutually exclusive per interface. Is it possible that some interfaces are managed with one service and the rest with other service? T...
by jlehtone
2021/06/17 06:32:12
Forum: CentOS 8 - General Support
Topic: interface enp2s0: ERROR - yes, CentOS 8.4.2105
Replies: 2
Views: 57

Re: interface enp2s0: ERROR - yes, CentOS 8.4.2105

The error message looks incomplete: Given IPv6 default gateway 'fe80::1' is link-local, but no scope or > "or" what? The reason why the output is "chopped" is because systemctl uses pager , less and less allows you to "scroll horizontally". In order to see whole lines you can use: systemctl --no-pag...
by jlehtone
2021/06/16 14:49:33
Forum: CentOS 8 - General Support
Topic: is possible recovery SERVER ACCESS with network.service OFF ?
Replies: 5
Views: 73

Re: is possible recovery SERVER ACCESS with network.service OFF ?

A service like (deprecated, not installed by default) network.service or NetworkManager.service is started by systemd during boot. When the service starts, it reads configuration from files and sets up network accordingly -- most likely by calling tools like ip . The 'ip' commands do not modify any ...
by jlehtone
2021/06/16 06:45:57
Forum: CentOS 8 - General Support
Topic: Installing MATE from source
Replies: 15
Views: 1602

Re: Installing MATE from source

CentOS 8 has unicode-ucd-11.0.0-1.el8 in AppStream. There does not seem to be unicode-ucd-han. You can "install" srpms: rpm -i gucharmap-12.0.1-1.fc30.src.rpm That will probably place a tarball into rpmbuild/SOURCES/ and the spec-file into rpmbuild/SPECS/ Dependencies are usually defined in the spec...
by jlehtone
2021/06/14 19:02:12
Forum: CentOS 7 - Networking Support
Topic: NIC forwarding question
Replies: 5
Views: 410

Re: NIC forwarding question

No. The thing that drops packets is Strict Reverse Path Forwarding filter See https://access.redhat.com/solutions/53031 It also says: to configure a system to function with rp_filter in strict mode is to set up policy based routing and has link to https://access.redhat.com/solutions/19596 https://si...
by jlehtone
2021/06/14 06:37:20
Forum: CentOS 7 - Networking Support
Topic: NIC forwarding question
Replies: 5
Views: 410

Re: NIC forwarding question

You show that your server has addresses 10.1.2.1 and 10.1.1.1 but your picture shows addresses 10.1.2.1 and 10.1.1. 2 Your picture shows a client, that has the 10.1.1.1 You say that "call" is to 10.1.2.1. Is it the client in 10.1.1.0/24 that makes that call? What route does the client use to reach s...
by jlehtone
2021/06/14 06:23:37
Forum: CentOS 8 - General Support
Topic: How to find appropriate RPMs based on dependencies for RPMs
Replies: 7
Views: 210

Re: How to find appropriate RPMs based on dependencies for RPMs

I knew about the rpm -qpR approach, but I was trying to figure it out using yum solely, apparently I need to keep using rpm as much as I do yum. The rpm queries metadata from packages that you have as local file or have installed. The dnf (aka yum) queries metadata from repositories. See descriptio...

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