Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.

Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).

How do you add a new linux interface?

B
Burma last edited by

Hello! There's a linux server, a ssh tunnel connected to it. How do you add this ssh-tunnel to network/interfaces so the server could see it as an additional ip?
That's how you can get through the ipip tunnel or a pptp, but ssh is what I need. Since there are 10 servers I'm gonna connect through the ssh tunnel and I need to add 10 interfaces with different external epics. Can you tell me how to do this?
P.S. On the servers I'm going to ssh to do nothing.
Reply Quote 0
1 Reply Last reply
Marcee last edited by
Before you launch a demon ssh in Point mode - to - Point, you need to prepare tun for each server. This can be done in two ways:
1. Team tuntap:
```
    ip tuntap add dev tun0 mode tun
```
1. Keep the devices ready, add /etc/systemd/network/ netdev device:
```
[NetDev]
Name=tun0
Kind=tun
#Разрешить доступ пользователям входящим в группу vpn

[Tun]

Group=vpn
```
And network file:
```
[Match]

Name=tun0
[Address]

Address=172.17.0.1/30

Peer=172.17.0.2/30
[Network]

Address=172.17.0.1/30
[Route]

Gateway=172.17.0.1

Destination=192.168.1.0/24
```
The second option is preferable because:
- The firewall will be aware of the existence of such devices
- The tunnel can be opened by an untouched user
- You can build the routes in advance, not sign them every time you want to connect.
http://influunt.ru/p2p-tunnel-with-ssh
Reply Quote 0
1 Reply Last reply

2
Posts

0
Views

Suggested Topics

T

linux, installation linux-headers
Software Programming • linux • • terrea

2

0
Votes

2
Posts

0
Views

Look at the nucleus.uname -a Available chemicals can be seen throughapt-cache search linux-headers If there's a version that's needed, I'll get it.apt install linux-headers-ВЕРСИЯ-amd64 If there's no match, update the nucleus and the hiders.Actuarial 5.5.17-1kali1Try to update.apt update apt install linux-image-amd64 linux-headers-amd64 apt upgrade apt autoremove The whole system will be updated and the image and headers of one last version will be installed. Then we'll need to reboot.
A

Renumber as 8 a.m. New day - new numbering
Software Programming • php phpmyadmin • • Amritpal

2

0
Votes

2
Posts

0
Views

Introduce new entries to the table as follows:insert into Table(day_num, col1, col2, ...) select coalesce(max(day_num),0)+1, 'xxx', 'yyy', ... from Table where dt >= curdate()+interval 8 hour and dt < curdate()+interval 32 hour For curdate() a different date (without time) on which the recording takes place may be used.
O

Add the text to the new line node.js
Software Programming • node.js files • • Oba22

2

0
Votes

2
Posts

0
Views

C

You can use, for example, a function. fs.appendFileSync♪ Transferring data to the file and adding a row translation symbol to the data start. There you go.fs.appendFileSync('file.txt', `\n${data_to_append}`); here. data_to_append - is a variable containing data for addition. However, the portability symbol is different on different platforms. Therefore, an example could be further broadened by adding the selection of the symbol of the row to the platform (windows or linux):const newLineChar = process.platform === 'win32' ? '\r\n' : '\n'; fs.appendFileSync('file.txt', `${newLineChar}${data_to_append}`); Qwertiy: In order to define the symbol for the transfer of the line depending on the platform, there is a constant in a package of os. Therefore, the symbol of the line translation can be obtained:require('os').EOL
B

Entity Framework, add dynamic new table
Software Programming • c sharp entity framework • • Burma

2

0
Votes

2
Posts

0
Views

A

Update 2020:See the end of the article on Habre: https://habr.com/en/post/500102/ Previous reply:Entity Framework (which is 6, which cannot be done in core) It is not intended for this EF, particularly with regard to the continuous stitch towards the Code First approach.The maximum you can do is write your sql-request and fulfil it - you'll have a table.But the base pattern won't update the summer and build the linq queries on these tables.Was. https://ru.stackoverflow.com/q/885445/213987 but it doesn't make any sense.
C

When the code is re-launched in another double-linked list corruption
Software Programming • c++ linux multi point memory dynamics • • courtlanda

2

0
Votes

2
Posts

0
Views

S

As the problem was scattered, the error occurred in a different place, not where the environment was shown. The reason was to use the dynamic memory, and I don't understand why it made a mistake. To speak straight, yesterday this code called a crash. I've been commenting on the use of variables all over my function, and I've just removed it at the end.I tried to free my memory right after I was released. If I'm doing it after 100 lines (not using it) I'. It's working now. Magic, trees. ♪ ♪Total operating code: void parse_position_data(const char *arg_pos_data, position_data *pdata){ pdata->reset_dynamic();// reseting buffer //fetching data sscanf(arg_pos_data, "%*c%*c%*c%*c%*c%*c,%*c%*c%*c%*c%*c%*c,%*c,%*f,%*c,%*f,%*c,%*f,%*f,%*f,%*d,%*d,%*d,%*d,%*d,%*d,%d",&pdata->base_stations_quantity); pdata->nearby = new base_station_opt[pdata->base_stations_quantity]; char day[3], month[3], year[3], hour[3], min[3], sec[3]; memset(day, '\0', 3); memset(month, '\0', 3); memset(year, '\0', 3); memset(hour, '\0', 3); memset(min, '\0', 3); memset(sec, '\0', 3); char *pos_data = new char[opt_buffer]; sscanf(arg_pos_data, "%c%c%c%c%c%c,%c%c%c%c%c%c,%c,%f,%c,%f,%c,%f,%f,%f,%d,%d,%d,%d,%d,%ld,%d,%d,%d,%d,%d,%d,%d,%s", &day[0], &day[1], &month[0], &month[1], &year[0], &year[1], &hour[0], &hour[1], &min[0], &min[1], &sec[0], &sec[1], &pdata->positioning, &pdata->latitude, &pdata->mark_latit, &pdata->longitude, &pdata->mark_longit, &pdata->speed, &pdata->direction, &pdata->altitude, &pdata->satel_num, &pdata->signal_intensity, &pdata->power, &pdata->steps_num, &pdata->roll_num, &pdata->terminal_state, &pdata->base_stations_quantity, &pdata->base_station_tower, &pdata->mcc_country_code, &pdata->mnc_netw_num, &pdata->base_station_area_code, &pdata->base_station_num, &pdata->base_station_signal_strength, pos_data ); printf("pos_data:%s\n\n", pos_data); time_t timestamp; struct tm * timeinfo; time(&timestamp); timeinfo = localtime ( &timestamp ); //parsed_data.date is ddmmyy string. 120115 = 12 january 2015. timeinfo->tm_year = atoi(year) + 100; // year from 1900 timeinfo->tm_mon = atoi(month) - 1; // month since jan (0-11) timeinfo->tm_mday = atoi(day); // day of month (1-31) timeinfo->tm_hour = atoi(hour); timeinfo->tm_min = atoi(min); timeinfo->tm_sec = atoi(sec); pdata->timestamp = mktime(timeinfo); for(int i = 0; i < pdata->base_stations_quantity; i++){ sscanf(pos_data, "%d,%d,%d,%s", &pdata->nearby[i].are_code, &pdata->nearby[i].number, &pdata->nearby[i].signal_strength, pos_data); } delete[] pos_data; } Z, you, if there's anything you can do, put your hands on it, because it's the right thing to do, and it's all good for me.Z,Z, you, I hope that helps anyone. (And yes - don't believe the media, think your head. People wrote the media, and they're wrong, too. ♪ ♪ )
D

Create a new file with new columns
Software Programming • javascript jquery node.js npm • • derk

2

0
Votes

2
Posts

0
Views

A

On a clean JS.Classification 1b,2b,3b not included. If necessary. We've got to get everything together first. bto quarry, and only after that, to follow the table.const CSV = ` A, B, C 1a,1b,1c 2a,1b,2c 3a,1b,3c 1a,2b,4c 2a,2b,5c 3a,2b,6c 1a,3b,7c 2a,3b,8c 3a,3b,9c ` const table = CSV.trim().split(/\n/g).map((row) => row.split(/[\s,]+/g)) // Отделяем типы столбцов const columns = table.splice(0, 1)[0] // Определяем столбцы const columnName = columns.findIndex((v) => /a/i.test(v)) const columnDate = columns.findIndex((v) => /b/i.test(v)) const columnWork = columns.findIndex((v) => /c/i.test(v)) // Раз нужно свернуть сотрудников, можно сразу собрать их в кучу // ... заодно запомнить все варианты number:b const A = [] const employees = table.reduce((a, v) => { const name = v[columnName] const date = v[columnDate] const work = v[columnWork] // Индекс столбца даты let i = A.indexOf(date) if (i === -1) { i = A.push(date) - 1 } if (!a[name]) { a[name] = [] } // Именно в этот индекс и вставляем, чтоб не промахнуться :) a[name][i] = work return a }, {}) // Теперь просто сворачиваем каждую строку -> Сотрудник:Время const result = [...Object.entries(employees)].map(([e, w]) => [e, w].flat().join(',')) // Добавляем первую строку даты result.unshift(['A', ...A].join(',')) // Склеиваем строки const newCSV = result.join(\n) console.log(newCSV)Of course:If the columns are called differently, it must be changedcolumns.findIndex((v) => /EmployeeName/i.test(v)) If the date is written in a format, it will have to lead to a real date. new Date() and compare time markIf the names of the staff are written as "Ivan Wan," create a regular. new RegExp("Ваня Иванов".replace(/\s+/g, ' '), 'i')const CSV = Name, Date, Work Jerrod Tate, Jun 29 2020, 5.2 Bianca Wright, Jun 29 2020, 5.4 Wayne Payne, Jun 29 2020, 6.5 Jerrod Tate, Jun 30 2020, 5 Heath Mcdaniel, Jun 30 2020, 6 Ezekiel Harrington, Jun 30 2020, 6.4 // Полноценная таблица const table = CSV.trim().split(/[\n\r]+/g).map((row) => row.trim().split(/,+/g)) // Отделяем типы столбцов const columns = table.shift() // Определяем столбцы const columnName = columns.findIndex((v) => /Name/i.test(v)) const columnDate = columns.findIndex((v) => /Date/i.test(v)) const columnWork = columns.findIndex((v) => /Work/i.test(v)) // Сортируем дату const A = table.reduce((a, v) => { const date = (new Date(v[columnDate])).valueOf() a.includes(date) || a.push(date) return a }, []).sort() const employees = table.reduce((a, v) => { const name = v[columnName].trim().replace(/\s+/g, ' ') const date = (new Date(v[columnDate])).valueOf() const work = v[columnWork].trim() let nw = [...a.entries()].find(([re]) => re.test(name)) if (!nw) { // Здесь можно чем-то заполнить если не работали nw = [null, { name, work: (new Array(A.length)).fill('0') }] a.set(new RegExp(name, 'i'), nw[1]) } nw[1].work[A.indexOf(date)] = work return a }, new Map()) // Далее делаем что угодно const result = [...employees.entries()].map(([_, { name, work }]) => [name, ...work]) // Наши заголовки с датой result.unshift(['Employee', ...A.map((d) => (new Date(d).toDateString()))]) result.map((v)=>console.log(v.join(', ')))
Why does the class operate an interface that inherits another interface of this class?
Software Programming • interface polymorphysics c investigation • • Demir

2

0
Votes

2
Posts

0
Views

G

In the bases of the auto-mapper on the guitar public class Mapper : IRuntimeMapper, IMapper No, and never, according to the logs.Decompilers May Showing the whole chain of succession of interfaces for a rather strange reason - class and interfaces in C# work differently.In the case of a hierarchy of classes, each descendant has exactly one distinct parent:class A {} class B : A {} class C : B {} In the case of an interface, https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/language-specification/interfaces#interface-implementations :A class or struct that directly implements an interface also directly implements all of the interface's base interfaces implicitly. This is true even if the class or struct doesn't explicitly list all base interfaces in the base class list.Compiler's looking for all basic interfaces, making a complete list of them and finishing them as real. So it turns interface A { } interface B : A { } public class SomeClass : B { } Total public class SomeClass : B, A { } It is in this form that the list of inherited interfaces is kept in metadata, and the decompilers simply cannot find out whether the reference to two interfaces in the original code or whether they compiled them.
R

Android keyboard and remapping the CTRL key
Mobile Testing • ssh keyboard • • rosemadder

2

0
Votes

2
Posts

0
Views

I managed to remap the Caps Lock key to Ctrl using External Keyboard Helper Pro. It was really straightforward, just poke around in the settings and you'll find a way to create a custom mapping (Keycode 58 --> Left Control).
Z

Simultaneous references and team ln
Software Programming • linux ubuntu • • zymir

2

0
Votes

2
Posts

0
Views

D

I'd like to make my own contribution, because, literally, the day before yesterday, I know what's going on, and I'...A simple, exhaustive example is the best explanation: as it is said, it's better to feel once more than to watch.Let's start creating some sort of experimental folder somewhere. Testsin the home catalogue:mkdir Tests Let's go into it.cd Tests Now we create a file in it. source.txt with text 1:echo 1 > source.txt Time of reference...Default (unspecified) team ln creates a “hard link”:ln source.txt hard-link.txt A hard reference is, uh... what the hell? ♪A hard link is a link file created with the Linux or Unix ln command that points to a file's inode♪Source: http://www.computerhope.com/jargon/h/hardlink.htm ♪Rigid reference - it's a file created by the Linux team (or Unix) lnwhich indicates "inode" reference file.OK.inode” file? ♪Short for index node, an inode is information contained within a Unix system that contains details about each file, such as the node, owner, file, location of file, etc.Source: http://www.computerhope.com/jargon/i/inode.htm ♪Reduction fromindex node" ; inode - This information within the Unix system (inside the operating system), which contains a detailed description of each file; this description includes information on "node” file, information on the owner of the file, some information on the file itself, information on the location of the file, etc.OK.node” file? ♪A node or node address is a name or number that identifies a specific computer or terminal in a group of interconnected computers on a network.Source: http://www.computerhope.com/jargon/n/nodeaddr.htm ♪Node or node address - is a name or number that identifies a specific computer or terminal in a network-connected computer group.I mean, this is file identifier in the system...Uh-oh, sort of a theory that's more or less sorted...So, we've got a file right now. Tests file source.txt with text 1 and harsh reference to it hard-link.txt♪Let's experiment...Changes as source.txtand hard-link.txt synchronized, no wonder.If we transfer any of the files from the current directory within our mounting point, the second file will have no impact and synchronization will work (which means we've moved the file of course). Again, it's not surprising: the file continues to exist as long as there's a single reference to it.So what's the problem? The implication is that, as mentioned above, the hard reference refers to the file index.inode) So, for example, if we remove any of the files and then create a file at the same location with the same name (and extension), it seems that it should be synchronized with another file, but not here, the link is lost: because the new file is a new index (also when copying the file creates a new file with a new index, and the connection is lost).Let's go to symbolic references...On call. ln with parameter -s or --symbolic A symbolic reference will be made:ln -s source.txt soft-link.txt Alternatively referred to as a soft link or symlink, a symbolic link is a file that links to another file or directory using its path. Unlike a hard link, a symbolic link can link to any file or directory on any computer. If you are more familiar with Microsoft Windows you can think of a symbolic link as a shortcut in Linux. In Linux and Unix symbolic links are created with the ln command. In the Windows command line you can use the mklink command to create symbolic link from the command line.Source: http://www.computerhope.com/jargon/s/symblink.htm ♪Alternative name soft link (mild/flex) or symlink (Symlin); symbolic reference - it's a file that connects with another file or directory using the latter's track(s). Unlike the hard reference, a symbolic reference may refer to any file or director located on any computer. If you know Microsoft Windows well, you can think of symbolic references as Linux labels. In Linux and Unix symbolic references are created by a team ln♪ In the Windows command line, you can use the team. mklink to create a symbolic reference through a command line.In other words, the symbolic reference refers file addressnot the file index.Experiment...If we move the symbolic link. soft-link.txtthat's not gonna affect the original file. source.txt, however, in an attempt to open the reference, it will be reported that the link has been breached and that it is proposed to delete the blank reference. And if we move the original file. source.txtThat's the file. soft-link.txt (this symbolic link) will become empty; however, if we create a new file with the same name as the original file.source.txt() In the same directory, synchronization will re-establish and work.Somehow...
Last mysql reboot
SQL, Database Testing • mysql linux • • carriann

2

0
Votes

2
Posts

0
Views

SHOW GLOBAL STATUS LIKE 'Uptime'; http://dev.mysql.com/doc/refman/5.6/en/server-status-variables.html#statvar_Uptime
S

Bitrix - How via API add a new address to the Email-marking address list
Software Programming • php bitrics • • Saumya

2

0
Votes

2
Posts

0
Views

C

http://dev.1c-bitrix.ru/api_d7/bitrix/sender/ It's the API for email marketing There's all classes and an explanation for how to use them. If you have a mail and you need to add a new e-mail to it. http://dev.1c-bitrix.ru/api_d7/bitrix/sender/subscription/subscribe.php
C

Why can't I add a new external key?
Software Programming • php mysql yii2 • • courtlanda

2

0
Votes

2
Posts

0
Views

B

1452 Cannot add or update a child row: a foreign key constraint failsThere's no way to add a restriction on the outside key because it's gonna be a slaughter. In other words, the tables already contain data that do not correspond to the key being created and will cause a failure of integrity. So first, clean up the data and then create the external key.
D

When an attempt is made to add a new entry to the database, it makes a mistake.
Software Programming • php mysql • • Duquan

2

0
Votes

2
Posts

0
Views

A

"('$author', '$title, '$category, '$year, '$isbn')"; Your sql request error, at least there's a lack of quarries on the parameters:"('$author', '$title', '$category', '$year', '$isbn')"; Second, since you don't point out a clear field on the request, values() We need to transfer everything. If there's a field of id in the panel, for example, it's in the request.Thirdly, your request is subject to sql injection. I'd advise you to use mysqli or pdo and pleisholders for the variables.
A

Struggling with MySQL character set, collation
SQL, Database Testing • mysql linux • • Amritpal

2

0
Votes

2
Posts

0
Views

F

Don't use latin1, use utf8. You have "Mojibake" because the bytes in the client are utf8-encoded, yet you said they were latin1. More on Mojibake and what to do about it: https://stackoverflow.com/questions/38363566/trouble-with-utf8-characters-what-i-see-is-not-what-i-stored
J

Force "Remote Host Identification Has Changed " warning
Security, Penetration Testing • ssh ssh host key known hosts • • jonetta

2

0
Votes

2
Posts

1
Views

T

The issue is likely that you are changing the host key in such a way as to make it unparsable. If you try using ssh -v [host] you'll probably see something like this: debug1: /home/[user]/.ssh/known_hosts:1: parse error in hostkeys file If you want to cause a verification error rather than a parse error that gets ignored, you'll have to change the key in a way that ssh still thinks it's valid. The way to do this depends on what type of key it is. You can force host key types with HostKeyAlgorithms (eg -o HostKeyAlgorithms=ssh-rsa). The most common host keys you'll run across with OpenSSH are RSA and ECDSA. RSA If you have an RSA host key, Thomas Pornin describes the public key format here: 00 00 00 07 The length in bytes of the next field 73 73 68 2d 72 73 61 The key type (ASCII encoding of "ssh-rsa") 00 00 00 03 The length in bytes of the public exponent 01 00 01 The public exponent (usually 65537, as here) 00 00 01 01 The length in bytes of the modulus (here, 257) 00 c3 a3... The modulus To avoid an invalid format error, you'll have to keep the string lengths and key type valid. OpenSSH also checks that the public exponent and modulus are not equal to 0, that the modulus is greater than 0, and that the modulus is at least 1024 bits. Here is an example key with a public exponent of 1 and a modulus of 21023 (note that this is not a valid RSA key, it just passes the checks OpenSSH uses for keys in known_hosts AAAAB3NzaC1yc2EAAAABAQAAAIEAgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA= In general, you can change pretty much anything after the 33rd or so base64 character, as long as you keep it the same length and valid base64. All that's required is that the modulus is > 0 and at least 1024 bits. ECDSA You can find the key format in the RFC and SEC 1: Let's break down this example key I just generated: AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBNLpVyqsu97ajvCDAcc8/W50xhG/Rt2qOxdiy05hAJJtwRTPZRJxrCLayFDWWkNY5ZICRQoYB6Fn7z42JPZNUaI= 00000013 Length of string (19 bytes) 65636473612d736861322d6e69737470323536 ASCII encoding of "ecdsa-sha2-nistp256" ("ecdsa-sha2-[identifier]") 00000008 Length of string (8 bytes) 6e69737470323536 ASCII encoding of "nistp256" ("[identifier]") 00000041 Length of string (65 bytes) 04d2e9572aacbbdeda8ef08301c73cfd... Q Decoding Q according to SEC 1 section 2.3.4: 04 W d2e9572aacbbdeda8ef08301c73cfd6e74c611bf46ddaa3b1762cb4e6100926d X c114cf651271ac22dac850d65a4358e59202450a1807a167ef3e3624f64d51a2 Y The OpenSSL functions OpenSSH calls for ECDSA keys actually verify that the point is on the curve, so you'd have to do some math to change it to another valid public key. At that point you might as well just generate a new one using: ssh-keygen -t ecdsa -f /tmp/key -N '' cat /tmp/key.pub rm /tmp/key{,.pub} You can of course do this for RSA and other keys as well.

How do you add a new linux interface?

Suggested Topics

linux, installation linux-headers Software Programming • linux • • terrea

Renumber as 8 a.m. New day - new numbering Software Programming • php phpmyadmin • • Amritpal

Add the text to the new line node.js Software Programming • node.js files • • Oba22

Entity Framework, add dynamic new table Software Programming • c sharp entity framework • • Burma

When the code is re-launched in another double-linked list corruption Software Programming • c++ linux multi point memory dynamics • • courtlanda

Create a new file with new columns Software Programming • javascript jquery node.js npm • • derk

Why does the class operate an interface that inherits another interface of this class? Software Programming • interface polymorphysics c investigation • • Demir

Android keyboard and remapping the CTRL key Mobile Testing • ssh keyboard • • rosemadder

Simultaneous references and team ln Software Programming • linux ubuntu • • zymir

Last mysql reboot SQL, Database Testing • mysql linux • • carriann

Bitrix - How via API add a new address to the Email-marking address list Software Programming • php bitrics • • Saumya

Why can't I add a new external key? Software Programming • php mysql yii2 • • courtlanda

When an attempt is made to add a new entry to the database, it makes a mistake. Software Programming • php mysql • • Duquan

Struggling with MySQL character set, collation SQL, Database Testing • mysql linux • • Amritpal

Force "Remote Host Identification Has Changed " warning Security, Penetration Testing • ssh ssh host key known hosts • • jonetta

linux, installation linux-headers
Software Programming • linux • • terrea

Renumber as 8 a.m. New day - new numbering
Software Programming • php phpmyadmin • • Amritpal

Add the text to the new line node.js
Software Programming • node.js files • • Oba22

Entity Framework, add dynamic new table
Software Programming • c sharp entity framework • • Burma

When the code is re-launched in another double-linked list corruption
Software Programming • c++ linux multi point memory dynamics • • courtlanda

Create a new file with new columns
Software Programming • javascript jquery node.js npm • • derk

Why does the class operate an interface that inherits another interface of this class?
Software Programming • interface polymorphysics c investigation • • Demir

Android keyboard and remapping the CTRL key
Mobile Testing • ssh keyboard • • rosemadder

Simultaneous references and team ln
Software Programming • linux ubuntu • • zymir

Last mysql reboot
SQL, Database Testing • mysql linux • • carriann

Bitrix - How via API add a new address to the Email-marking address list
Software Programming • php bitrics • • Saumya

Why can't I add a new external key?
Software Programming • php mysql yii2 • • courtlanda

When an attempt is made to add a new entry to the database, it makes a mistake.
Software Programming • php mysql • • Duquan

Struggling with MySQL character set, collation
SQL, Database Testing • mysql linux • • Amritpal

Force "Remote Host Identification Has Changed " warning
Security, Penetration Testing • ssh ssh host key known hosts • • jonetta