服务器到服务器文件传输端口？

Z时代
2024-01-10
分类：问答

我使用bash脚本（https://github.com/johnnywoof/FTP-Bash-Backup）将我的Debian www目录备份到ftp服务器。一切顺利，但传输被防火墙阻止。每次使用单独的端口的脚本，所以我不能通过防火墙解除阻止。有什么方法可以指定一个端口？服务器到服务器文件传输端口？

的bash脚本

# FTP server settings 
USERNAME="" 
PASSWORD="" 
SERVER="" 
PORT=21 
BACKUPDIR="/" 
ndays=7 
LOCAL_DIRECTORY="/home" 
TEMP_BACKUP_STORE="/tmp" 
ENCRYPT_BACKUP=false 
AES_PASSWORD_FILE="" 
timestamp=$(date --iso) 
backup_remote_file_name="$timestamp.tar.gz" 
backup_file="$TEMP_BACKUP_STORE/$backup_remote_file_name" 
MM=`date --date="$ndays days ago" +%b` 
DD=`date --date="$ndays days ago" +%d` 
echo "Removing files older than $MM $DD" 
listing=`ftp -i -n $SERVER $PORT <<EOMYF 
user $USERNAME $PASSWORD 
binary 
cd $BACKUPDIR 
ls 
quit 
EOMYF` 
lista=($listing) 
for ((FNO=0; FNO<${#lista[@]}; FNO+=9));do 
    # month (element 5), day (element 6) and filename (element 8) 
    #echo Date ${lista[`expr $FNO+5`]} ${lista[`expr $FNO+6`]}   File: ${lista[`expr $FNO+8`]} 
    if [ ${lista[`expr $FNO+5`]}=$MM ]; 
    then 
     if [[ ${lista[`expr $FNO+6`]} -lt $DD ]]; 
     then 
      echo "Removing ${lista[`expr $FNO+8`]}" 
      ftp -i -n $SERVER $PORT <<EOMYF2 
      user $USERNAME $PASSWORD 
      binary 
      cd $BACKUPDIR 
      delete ${lista[`expr $FNO+8`]} 
      quit 
      EOMYF2 
     fi 
    fi 
done 
echo "Creating backup..." 
tar -czf $backup_file $LOCAL_DIRECTORY 
if [ "$ENCRYPT_BACKUP" == "true" ] 
then 
    echo "Encrypting backup using OpenSSL..." 
    output_encrypted_file="$backup_file.enc" 
    openssl enc -aes-256-cbc -salt -in $backup_file -out $output_encrypted_file -pass file:$AES_PASSWORD_FILE 
    rm $backup_file 
    backup_file=$output_encrypted_file 
fi 
echo "Uploading backup $backup_file ..." 
ftp -n -i $SERVER $PORT <<EOF 
user $USERNAME $PASSWORD 
cd $BACKUPDIR 
put $backup_file $backup_remote_file_name 
quit 
EOF 
echo "Deleting temporary files..." 
rm $backup_file 
echo "Backup complete."